On Regularized Newton-type Algorithms and A Posteriori Error Estimates for Solving Ill-posed Inverse Problems   

Ill-posed inverse problems have wide applications in many fields such as oceanography, signal processing, machine learning, biomedical imaging, remote sensing, geophysics, and others. In this dissertation, we address the problem of solving unstable operator equations with iteratively regularized Newton-type algorithms. Important practical questions such as selection of regularization parameters, construction of generating (filtering) functions based on a priori information available for different models, algorithms for stopping rules and error estimates are investigated with equal attention given to theoretical study and numerical experiments.


          9 Artificial Intelligence Startups in Medical Imaging   
You don’t have to be a gambler to appreciate the complexities of the card game Texas Hold ‘Em. It involves a strategy that needs to evolve based on the players around the table, it takes a certain amount of intuition, and it doesn’t require the player to win every hand. Just a few days ago, […]
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Academy Announces 2017 Distinguished Investigators   
For Immediate Release Contact: David Zinn (202) 347-5872 acadrad.org The Academy for Radiology & Biomedical Imaging Research Announces the Recipients of its 2017 Distinguished Investigator Award  Recipients of This Award Have Attained a Level of Research Accomplishment That Ranks Within the Top 10% of All Academic Radiology Faculty   Washington, DC [...]
          Academy’s Response to Budget Agreement   
The Academy for Radiology and Biomedical Imaging Research (Academy) issued the following statement in response to the fiscal year (FY) 2017 spending package released today, which provides $34.1 billion for the National Institutes of Health (NIH), a $2 billion increase including $352 million provided in the 21st Century Cures Act for targeted initiatives.   The [...]
          Academy Statement of President’s Proposed FY18 Budget   
 “America First and Greatest” Requires Investment in NIH  The Academy for Radiology and Biomedical Imaging Research issued the following statement in response to the President’s fiscal year (FY) 2018 budget blueprint released today. March 16, 2017 – The Administration’s proposal to gut funding for the National Institutes of Health (NIH) by nearly 20 percent ($5.8 [...]
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Medical imaging used to detect chronic illness   
Medical imaging is being used to predict the likelihood of a patient developing a serious illness based on the health of their organs. The imaging coupled with artificial intelligence could offer early detection of chronic illnesses such as heart disease, and determine whether a medical intervention is appropriate. Read more > Did you find this article useful?...
           Low-statistics reconstruction with AB-EMML    
Erlandsson, K; Visvikis, D; Waddington, WA; Cullum, I; Jarritt, PH; Pilowsky, LS; (2000) Low-statistics reconstruction with AB-EMML. IEEE Nuclear Science Symposium and Medical Imaging Conference , 2
           Backprojection-space 3D scatter correction for the PETRRA positron camera    
Divoli, A; Ott, RJ; Erlandsson, K; Flower, MA; Mériaux, S; (2000) Backprojection-space 3D scatter correction for the PETRRA positron camera. IEEE Nuclear Science Symposium and Medical Imaging Conference , 2
           Preliminary evaluations of high resolution positron emission tomography for breast imaging    
White, LL; Ott, RJ; Flower, MA; Erlandsson, K; Duxbury, DM; Bruyndonckx, P; Tavernier, S; (2000) Preliminary evaluations of high resolution positron emission tomography for breast imaging. IEEE Nuclear Science Symposium and Medical Imaging Conference , 3
           Validation of an optical flow algorithm to measure blood flow waveforms in arteries using dynamic digital x-ray images    
Rhode, K; Lambrou, T; Hawkes, DJ; Hamilton, G; Seifalian, AM; (2000) Validation of an optical flow algorithm to measure blood flow waveforms in arteries using dynamic digital x-ray images. MEDICAL IMAGING 2000: IMAGE PROCESSING, PTS 1 AND 2 , 1 (24) 1414 - 1425.
          Comment on Refurbished Medical Imaging Equipment: Sustainable, Safe, and Effective by Zara Joyce   
You are right. Refurbished medical equipment is always a better and smart choice for a hospital or medical facility over the new ones. I work for a firm that deals in sales & purchase of Refurbished IV infusion pumps in the USA. Believe me, these equipment works better than the new ones and saves up to 60-70% of the cost of new equipment.
          Comment on Refurbished Medical Imaging Equipment: Sustainable, Safe, and Effective by Tyler Meredith   
It's interesting that buying refurbished equipment can not only help save money but also saves the energy of producing a new one. it makes sense that medical equipment can be extremely difficult to make with all the specialized materials and manufacturing processes. It's something to keep in mind for anyone looking to buy medical equipment as it could help save a lot more than just the price.
          The Neural Art Navigator   
oops will have to be The Neural Art Navigator as the Neural Navigator is being used by a medical imaging system in Utrecht, its an exciting phase for VAINS, as we will get a chance to demonstrate a radical new system for online art interaction..curtesy of the EEG headset and christmas holiday hack.
          Medical Imaging Aide/Clerk - Vancouver Coastal Health - Burnaby, BC   
Monitors and replenishes department inventories and ensures core supply levels are maintained, performs cleaning and tidying functions of the area, performs... $21.26 an hour
From Vancouver Coastal Health - Mon, 05 Jun 2017 19:30:52 GMT - View all Burnaby, BC jobs
          Engineer Predicted Internet, Cell Phones And Medical Imaging More Than A Century Ago   
More than 100 years ago, a relatively unknown engineer accurately predicted the invention of the internet, satellite TV, digital photography, cell phones, and medical imaging technologies ... yet no one knows his name.
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
The chief technologist is able to independently perform job functions. The Medical Imaging Chief Technologist supervises staff to ensure that ordered diagnostic...
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Nuclear Medicine Technologist - Medical Imaging - Full Time, Days - Montrose Memorial Hospital - Montrose, CO   
ARRT (N) registered and/or NMTCB certification within 18 months of employment. C) BLS certification. Provide instruction and technical guidance to radiologic...
From Montrose Memorial Hospital - Thu, 06 Apr 2017 19:35:15 GMT - View all Montrose, CO jobs
          Pricing Manager - Hologic - Danbury, CT   
PROS, Vendavo, Model-N. Is a leading developer, manufacturer and supplier of premium diagnostic products, medical imaging systems and surgical products....
From Hologic - Mon, 27 Mar 2017 22:54:33 GMT - View all Danbury, CT jobs
           Principal geodesic analysis for the study of nonlinear minimum description length    
Su, Zihua and Lambrou, Tryphon and Todd-Pokropek, Andrew (2008) Principal geodesic analysis for the study of nonlinear minimum description length. Medical Imaging and Informatics: Lecture Notes in Computer Science, 4987 L . pp. 89-98. ISSN 0302-9743
           Statistical shape modeling of the diaphragm for application to Rb-82 cardiac PET-CT studies    
Mcquaid, S. J. and Lambrou, T. and Hutton, B. F. (2008) Statistical shape modeling of the diaphragm for application to Rb-82 cardiac PET-CT studies. In: Conference of 2008 IEEE Nuclear Science Symposium and Medical Imaging Conference, 19-25 October 2008, Dresden, Germany.
           A 54mm x 54mm - 1.8Megapixel CMOS image sensor for medical imaging    
Clark, A. T. and Guerrini, Nicola and Allinson, Nigel and Bohndiek, Sarah E. and Crooks, Jamie and Pickering, T. and Turchetta, R. (2008) A 54mm x 54mm - 1.8Megapixel CMOS image sensor for medical imaging. In: NSS/MIC 2008, 19 - 25 October 2008, Dresden, Germany.
           Segmentation of pulmonary nodules in thoracic CT scans: a region growing approach    
Dehmeshki, Jamshid and Amin, Hamdan and Valdivieso, Manlio and Ye, Xujiong (2008) Segmentation of pulmonary nodules in thoracic CT scans: a region growing approach. IEEE transactions on medical imaging, 27 (4). pp. 467-480. ISSN 0278-0062
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          LSI RAID Controllers - Full Range Available   
Looking for an RAID controller or HBA? Take a look at our massive catalogue of products, consisting of over 209 RAID and HBA controllers, cables, battery backup modules and accessories. We have worked with LSI since our inception back in 2006, when LSI used to be 3ware. Even back then their controller cards were one of the best and they still are. The controllers are now tried and tested. Their controller processors are commonplace in nearly every server system on the market these days. They are resold on to DELL PowerEdge PERC RAID Controllers, HP SmartArray RAID Controllers and are embedded into other server systems such as Fujitsu. We sell the full current range of LSI controllers, ranging from simple HBA up to high end SAN ready RAID controllers. A lot has moved on since 2006, when SCSI was the fastest connectivity technology available. Of course SCSI is still available, but now known as SAS. SCSI topped out at 320Mbps, but today SAS is available at 12Gbps, 38 times the speed of SCSI – amazing how things have moved on. I thought I would put together a quick list of our most popular LSI products; LSI MegaRAID Entry Line – 6Gbps SATA+SAS RAID These cost effective RAID building blocks are designed to deliver performance, reliability, and ease of use with 6Gb/s and legacy 3Gb/s device support, a x8 PCIe 2.0 host interface, and a full set of features. LSI MegaRAID controller cards are ideal for protecting access to important data for small business, scientific, medical, or digital media workstation applications. Please select from the 9240 series products below; MegaRAID SAS 9240-8i, 8 ports internal, low-profile PCIe 2.0 MegaRAID SAS 9240-4i, 4 ports internal, low-profile PCIe 2.0 LSI MegaRAID Value Line – 6Gbps SATA+SAS RAID Providing a carefully designed balance between data protection features, performance, and cost, these controller cards are designed to deliver data quickly and reliably to mission-critical applications for small-and-medium size businesses, as well as a wide variety of cloud, security, and core business applications. MegaRAID SAS 9260-16i, 16 ports internal, PCIe 2.0 MegaRAID SAS 9270-8i, 8 ports internal, low profile 2nd Generation 6Gb/s SAS PCIe 3.0 MegaRAID SAS 9271-8i, 8 ports internal, low profile 2nd Generation 6Gb/s SAS PCIe 3.0 MegaRAID SAS 9271-8iCC, 8 ports internal, 2nd Generation 6Gb/s SAS PCIe 3.0, CacheCade + Fast Path MegaRAID SAS 9266-8i, 8 ports internal, low profile, 2nd Generation 6Gb/s SAS, PCIe 2.0 MegaRAID SAS 9261-8i, 8 ports internal, low-profile PCIe 2.0 MegaRAID SAS 9271-4i, 4 ports internal, low profile 2nd Generation 6Gb/s SAS PCIe 3.0 MegaRAID SAS 9266-4i, 4 ports internal, low profile, 2nd Generation 6Gb/s SAS, PCIe 2.0 MegaRAID SAS 9260-4i, 4 ports internal, low-profile PCIe 2.0   MegaRAID Feature Line - 6Gb/s SATA+SAS RAID Designed to deliver breakthrough IOPS and bandwidth performance for high-performance computing, medical imaging, digital content development, and other highly demanding applications, these controller cards offer 6Gb/s or legacy 3Gb/s transfer rates; PCIe 2.0 host connectivity; support for SATA, SAS or solid-state devices; and LSI advanced software options for select MegaRAID controllers. MegaRAID SAS 9280-24i4e, 24 ports internal, 4 ports external, PCIe 2.0 MegaRAID SAS 9280-16i4e, 16 ports internal, 4 ports external, PCIe 2.0 MegaRAID SAS 9286-8e, 8 ports external, low profile, 2nd Generation 6Gb/s SAS, PCIe 3.0 MegaRAID SAS 9286CV-8e, 8 ports external, 2nd Generation 6Gb/s SAS, PCIe 3.0, CacheVault technology MegaRAID SAS 9280-8e, 8 ports external, low-profile PCIe 2.0 MegaRAID SAS 9280-4i4e, 4 ports internal, 4 ports external, low-profile PCIe 2.0 Our catalogue from LSI also includes LSI SAS Switches, HBA’s, Battery Backup Units (BBU), CacheVault Kits, MiniSAS Cables, Software and more! Our team at Server Case UK has plenty of experience with LSI, so if you need any help choosing the right parts for your project please call us on 0800 652 1649 or contact us. We are always happy to help!
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Carestream Utilizes Intel Technologies to Move Healthcare Industry Forward – Conversations in the Cloud – Episode 79   
In this Intel Conversations in the Cloud audio podcast: Ishai Tal, Head of Platform and Cloud Architecture at Carestream Health, joins us in this episode of Conversations in the Cloud to discuss next generation medical imaging data and analytics over the cloud, using NVMe technologies. Intel Solid State Drive Data Center Family for NVM Express [...]
          Medical Imaging Aide/Clerk - Vancouver Coastal Health - Burnaby, BC   
Monitors and replenishes department inventories and ensures core supply levels are maintained, performs cleaning and tidying functions of the area, performs... $21.26 an hour
From Vancouver Coastal Health - Mon, 05 Jun 2017 19:30:52 GMT - View all Burnaby, BC jobs
          Scheduler - Medical Imaging - North State Radiology Medical Group - Chico, CA   
MEDICAL IMAGING SCHEDULER Busy radiology practice is seeking an experienced and responsible person to handle various scheduling needs and interactions with
From Indeed - Fri, 23 Jun 2017 21:13:11 GMT - View all Chico, CA jobs
          Imaging Medical Equipment   
Direct Medical Imaging sources the highest quality equipment from all major manufacturers. All pre-owned CT and MRI machines are meticulously evaluated, checked, tested and inspected, guaranteed to meet OEM functional, physical and cosmetic specifications. We are also able to offer application training on your new equipment and trade-in of your existing MRI equipment.
          NIRvana Sciences Wins 2nd NIH Phase I STTR   
RESEARCH TRIANGLE PARK, NC, April 30th, 2015– NIRvana Sciences, Inc., the leading developer of synthetic bacteriochlorins and chlorins in the field of fluorescent dyes, today announced that it has been awarded a second $225k Phase I STTR from NIH’s National Institute of Biomedical Imaging and Bioengineering.
          Seeking a Software Architect next-generation Medical Imaging Robotics   
OSI Engineering, Inc. San Diego, CA
          Pricing Manager - Hologic - Danbury, CT   
PROS, Vendavo, Model-N. Is a leading developer, manufacturer and supplier of premium diagnostic products, medical imaging systems and surgical products....
From Hologic - Mon, 27 Mar 2017 22:54:33 GMT - View all Danbury, CT jobs
          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist. Excellent compensation with opportunities to cross train....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
          Interactively visualising DICOM volumes and header data   
Digital Imaging and Communications in Medicine (DICOM) is an internationally recognised standard for medical imaging and is implemented in the majority of medical imaging devices ...
          Pricing Manager - Hologic - Danbury, CT   
PROS, Vendavo, Model-N. Is a leading developer, manufacturer and supplier of premium diagnostic products, medical imaging systems and surgical products....
From Hologic - Mon, 27 Mar 2017 22:54:33 GMT - View all Danbury, CT jobs
          EAST COUNTY ROUNDUP: TOP LOCAL AND STATE NEWS    
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June 21, 2012 --  (San Diego’s East County)--East County Roundup highlights top stories of interest to East County and San Diego’s inland regions, published in other media. This week’s top “Roundup” headlines include: 
 
 
 
 
  
 
LOCAL
  • Regional Chamber of Commerce paints hopeful picture of economic recovery (Ramona Patch)
  • SD Unified bringing back all laid off teachers (Voice of San Diego)
  • Switching on SDG&E’s Sunrise Powerlink (UTSanDiego)
  • New initiative launches in San Diego to reclaim science’s role in policy decisions (KPBS)
  • Helix leader Rani Goyal got $56,000 severance in settlement deal (La Mesa Patch)
  • The Starting Line: SDG&E’s Trojan Horse (San Diego Free Press)
  • UT CEO’s last media company sold interviews (CityBeat)
  • Man fatally stabbed in unincorporated La Mesa (La Mesa Patch)
STATE 
  • California Dems resist Gov. Brown’s welfare plans (San Jose Mercury News)
  • California schools facing shorter year (Sacramento Bee)
  • Viewpoint: Voters have a right to know how much loopholes are costing state (Sacramento Bee)
Read more for excerpts and links to full stories.
 
LOCAL
 
Regional Chamber of Commerce paints hopeful picture of economic recovery (Ramona Patch)
 
June 19, 2012 -- The worst appears to be over for the recession in San Diego County, but it could still take a few years for the economy to return to pre-recession levels, according to a study released Tuesday by the San Diego Regional Chamber of Commerce.
The report (attached as a PDF) comes in the wake of last week’s announcement that San Diego had an 8.8 percent unemployment rate in May, with about 62,100 people out of work.
http://ramona.patch.com/articles/regional-chamber-of-commerce-paints-hopeful-picture-of-economic-recovery-5e0dc83c
SD Unified bringing back all laid off teachers (Voice of San Diego)
 
June 19, 2012 -- Every one of the 1,372 teachers laid off earlier this year by the San Diego Unified School District will be back at school by Sept. 1, under a two-year deal agreed to by the district and the teachers union today.
Negotiators for the San Diego Education Association, the local teachers union, agreed to put off a series of pay raises promised by the district two years ago, and also agreed to extend five unpaid furlough days for an additional two years.
 
Switching on SDG&E’s Sunrise Powerlink (UTSanDiego)
 
June 16. 2012 -- San Diego’s electron highway into the desert has arrived.
With electricity switched on Sunday morning, the 500,000-volt transmission line cuts a jagged line across San Diego’s mountainous backdrop, skirting past reservoirs, the majestic El Cajon peak and the high country’s eagle nesting grounds.
Descending to the Imperial Valley desert floor, silvery lattice transmission towers trail off toward the horizon.
http://www.utsandiego.com/news/2012/jun/16/electron-highway-pulls-san-diego/ 
New initiative launches in San Diego to reclaim science’s role in policy decisions (KPBS)
 
June 13, 2012 -- A new initiative from the Union of Concerned Scientists launched today in San Diego. It aims to build a Center for Science and Democracy to counter what it calls a "troubling trend": "understanding of science and respect for its role in decision making have declined."
 
Peter Frumhoff, director of science and policy at the organization, which was founded to make sure science is heard in policy debates, told KPBS the center wants to "restore that pragmatic, evidence-based dialogue where facts really matter."
http://www.kpbs.org/news/2012/jun/13/center-aims-unite-science-public-opinion/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+kpbs%2Fmidday-edition+%28KPBS+Podcast%3A+Midday+Edition%29
 
Helix leader Rani Goyal got $56,000 severance in settlement deal (La Mesa Patch)
 
June 15, 2012 -- Rani Goyal was promised a $56,000 severance check from Helix Charter High School when she suddenly resigned May 25 under still mysterious circumstances.
As executive director of the La Mesa school, she was almost two years into a four-year contract paying $130,000 a year plus expenses, according to documents obtained by Patch.
http://lamesa.patch.com/articles/helix-leader-rani-goyal-got-56-000-severance-in-settlement-deal
 
The Starting Line: SDG&E’s Trojan Horse (San Diego Free Press)
 
June 18,201 -- SDG&E’s trojan horse Michael Hiltzer in the LA Times reported Sunday on a scheme proposed by SDG&E that would give its 1.2 million customers the option of prepaying their electric bills. While the plan may sound appealing to those mostly working class consumers who favor prepaid cell phones and the like, there are significant disadvantages for consumers built into the proposal. Sign up for the prepaid program and you’re signing away virtually all the consumer protections governing disconnections. 
http://sandiegofreepress.org/2012/06/the-starting-line-sdg-koch-bros-confab-set-for-san-diego/ 
 
UT CEO’s last media company sold interviews (CityBeat)
 
June 15, 2012 -- Last night on Twitter, Voice of San Diego's Rob Davis posted a link to a puff-piecey video clip about a local medical imaging and radiology center from Scott, BR kknd Amber, the centerpiece of the U-T San Diego's new television station. Davis asked, "Anyone know whether this company is a U-T advertiser?" 
We'll leave Davis to get to the bottom of it, since so far he's done a fine job covering covering U-T San Diego's rapid degradation under its new owners. But we can say one thing: the U-T's new CEO's previous media venture sold on-air positive interviews to a government agency as part of a marketing package. http://www.sdcitybeat.com/sandiego/blog-946-u-t-ceos-last-media-company-sold-interviews.html
Man fatally stabbed in unincorporated La Mesa (La Mesa Patch)
 
Update: 4:18 p.m. Tuesday, June 19
The man fatally stabbed Sunday night in unincorporated La Mesa has been identified as Jesse Lazarus Nader, 26. He was a Spring Valley resident.
Original story:
Homicide detectives searched Monday for a man who fatally stabbed another man inside a residence in an unincorporated area near La Mesa over the weekend, authorities said.
http://lamesa.patch.com/articles/man-fatally-stabbed-in-unincorporated-la-mesa?ncid=newsltuspatc00000001
STATE
 
California Dems resist Gov. Brown’s welfare plans (San Jose Mercury News)
 
June 19, 2012 -- California legislators may have passed a budget, but Democratic leaders and Gov. Jerry Brown are fighting to a standoff over his proposal to restructure the state's welfare program.
Brown is pressuring the Legislature for deeper cuts amid a projected $15.7 billion shortfall. Negotiations continued Monday with Democratic lawmakers resisting Brown's proposal to reduce welfare spending, one of many issues still to be resolved before the state's spending plan can be implemented.
 
California schools facing shorter year (Sacramento Bee)
 
June 19, 2012 -- Sydney Walker is scared. She is worried her children, who attend San Juan Unified schools, won't be prepared for college or classes next year if state lawmakers allow school districts to cut the school year by as many as 15 days.
That could shorten the school year to 160 days – tying California with Colorado for the shortest school year, and well below the national norm of 180 days.
http://www.sacbee.com/2012/06/19/4572022/schools-facing-shorter-year.html
Viewpoint: Voters have a right to know how much loopholes are costing state (Sacramento Bee)
 
June 19, 2012 -- Despite a nearly $16 billion budget deficit,California is not a poor state. Nor is it a bad state in which to do business. For example, Cupertino-based Apple Computer is now the world's most valuable company. It reported nearly $1 billion in weekly profits last month and could potentially earn $45.6 billion in the current fiscal year, according to the New York Times. While Apple and several other Silicon Valley corporations, including Facebook, Google and Twitter are earning significant profits, the state's corporations are actually paying less this year than in prior years.

  


          Partners HealthCare and GE Healthcare Launch 10-year Collaboration on Artificial Intelligence   
Partners HealthCare and GE Healthcare Launch 10-year Collaboration on Artificial Intelligence

May 17, 2017 — Partners HealthCare and GE Healthcare announced a 10-year collaboration to rapidly develop, validate and strategically integrate deep learning technology across the entire continuum of care. The collaboration will be executed through the newly formed Massachusetts General Hospital and Brigham and Women’s Hospital Center for Clinical Data Science and will feature co-located, multidisciplinary teams with broad access to data, computational infrastructure and clinical expertise.

The initial focus of the relationship will be on the development of applications aimed to improve clinician productivity and patient outcomes in diagnostic imaging. Over time, the groups will create new business models for applying artificial intelligence (AI) to healthcare and develop products for additional medical specialties like molecular pathology, genomics and population health.

“This is an important moment for medicine,” said David Torchiana, M.D., CEO of Partners HealthCare. “Clinicians are inundated with data, and the patient experience suffers from inefficiencies in the healthcare industry. This partnership has the resources and vision to accelerate the development and adoption of deep learning technology and empower clinicians with the tools needed to store, analyze and leverage the flood of information to more rapidly and effectively deliver care.”

The vision for the collaboration is to implement AI into every aspect of a patient journey – from admittance through discharge. Once the deep learning applications are developed and deployed, clinicians and patients will benefit from a variety of tools that span disease areas, diagnostic modalities and treatment strategies and have the potential to do everything from decrease unnecessary biopsies to streamline clinical workflows to increase the amount of time clinicians spend with patients versus performing administrative tasks. Additionally, the teams will co-develop an open platform on which Partners HealthCare, GE Healthcare and third-party developers can rapidly prototype, validate and share the applications with hospitals and clinics around the world.

With the initial diagnostic imaging focus, early applications will address cases like:

  • Determining the prognostic impact of stroke,
  • Identifying fractures in the emergency room;
  • Tracking how tumors grow or shrink after the administration of novel therapies; and
  • Indicating the likelihood of cancer on ultrasound.

The applications are being developed based on three criteria:

  1. Patient impact;
  2. Technical capability; and
  3. Market appetite.

This is to ensure that the solutions being developed are not solely dependent on the data that’s available but specifically target the top clinician pain points and the most critically ill patients. The goal is to bring the most promising solutions to market faster, so they can start making an impact for hospitals, health systems and patients globally sooner.

Spinal injury patients represent the types of cases where deep learning applications can help clinicians deliver faster, more efficient care, as the patients need to be treated immediately or run the risk of significant and permanent damage. For a single patient, a lumbar spine magnetic resonance imaging (MRI) exam may generate up to 300 images. In addition, a doctor may need to review prior scans and notes in a patient’s electronic medical record before making a diagnosis. A deep learning application could be leveraged to quickly analyze the data and determine the most critical images for the radiologist to read, shortening the time to treatment for trauma patients, and enabling the clinician to deliver more personalized and comprehensive care for all patients – critically injured or not.

“We’re evolving the healthcare system to be able to take advantage of the benefits of deep learning, bringing together hospitals, data sets and clinical and technical minds unlike ever before,” said Keith Dreyer, DO, Ph.D., chief data science officer, Departments of Radiology at MGH and BWH. “The scope reflects the reality that advancements in clinical data science require substantial commitments of capital, expertise, personnel and cooperation between the system and industry.”

Watch a VIDEO interview with MGH Center for Clinical Data Science director Mark Michalski on the development of artificial intelligence to aid radiology.

Read the article "How Artificial Intelligence Will Change Medical Imaging."

For more information: www.gehealthcare.com, www.partners.org


          ACR Appropriateness Criteria Update Adds Three New Imaging Topics   
ACR Appropriateness Criteria, update, new topics, medical imaging, AUC, American College of Radiology

April 3, 2017 — The newest release of American College of Radiology (ACR) Appropriateness Criteria covers 230 topics with more than 1,100 clinical indications.

These continuously reviewed evidence-based guidelines help healthcare providers choose the most appropriate medical imaging exam for a specific clinical condition. The latest update includes three new topics and five revised topics.

“For nearly 25 years, ACR Appropriateness Criteria have been refined and improved, providing standardized and effective care for patients,” said E. Kent Yucel, M.D., FACR, chair of the ACR Committee on Diagnostic Imaging and Interventional Radiology Appropriateness Criteria. “They are valuable guidelines for improving patient outcomes,” he noted.

New topics in the latest release of the guidelines include:

  • Monitoring Response to Neoadjuvant Systemic Therapy for Breast Cancer; 
  • Penetrating Neck Injury; and 
  • Thoracic Aorta Interventional Planning and Follow-up. 

Revised topics include:

  • Cranial Neuropathy; 
  • Imaging After Total Knee Arthroplasty;
  • Radiologic Management of Iliac Artery Occlusive Disease; 
  • Renovascular Hypertension; and
  • Sinonasal Disease. 

The guidelines are specified appropriate use criteria (AUC) under the Protecting Access to Medicare Act (PAMA) legislation and are developed by expert panels of radiologists and other doctors from relevant medical specialties. The ACR is designated by the Centers for Medicare & Medicaid Services (CMS) as a qualified Provider-Led Entity.  Medical providers may consult the ACR Appropriateness Criteria to fulfill PAMA requirements that they consult AUC prior to ordering advanced diagnostic imaging for Medicare patients.

The updated guidelines can be read in full here.

For more information: www.acr.org 


          How Artificial Intelligence Will Change Medical Imaging   
AI, deep learning, artificial intelligence, medical imaging, cardiology, echo AI, clinical decision support, echocardiography

An example of artificial intelligence from the start-up company Viz. The image shows how the AI software automatically reviews an echocardiogram, completes an automated left ventricular ejection fraction quantification and then presents the data side by side with the original cardiology report. The goal of the software is to augment clinicians and cardiologists by helping them speed workflow, act as a second set of eyes and aid clinical decision support.

An example of how Agfa is integrating IBM Watson into its radiology workflow. Watson reviewed the X-ray images and the image order and determined the patient had lung cancer and a cardiac history and pulled in the relevant prior exams, sections of the patient history, cardiology and oncology department information. It also pulled in recent lab values, current drugs being taken. This allows for a more complete view of the patient's condition and may aid in diagnosis or determining the next step in care.  

Artificial intelligence (AI) has captured the imagination and attention of doctors over the past couple years as several companies and large research hospitals work to perfect these systems for clinical use. The first concrete examples of how AI (also called deep learning, machine learning or artificial neural networks) will help clinicians are now being commercialized. These systems may offer a paradigm shift in how clinicians work in an effort to significantly boost workflow efficiency, while at the same time improving care and patient throughput. 

Today, one of the biggest problems facing physicians and clinicians in general is the overload of too much patient information to sift through. This rapid accumulation of electronic data is thanks to the advent of electronic medical records (EMRs) and the capture of all sorts of data about a patient that was not previously recorded, or at least not easily data mined. This includes imaging data, exam and procedure reports, lab values, pathology reports, waveforms, data automatically downloaded from implantable electrophysiology devices, data transferred from the imaging and diagnostics systems themselves, as well as the information entered in the EMR, admission, discharge and transfer (ADT), hospital information system (HIS) and billing software. In the next couple years there will be a further data explosion with the use of bidirectional patient portals, where patients can upload their own data and images to their EMRs. This will include images shot with their phones of things like wound site healing to reduce the need for in-person follow-up office visits. It also will include medication compliance tracking, blood pressure and weight logs, blood sugar, anticoagulant INR and other home monitoring test results, and activity tracking from apps, wearables and the evolving Internet of things (IoT) to aid in keeping patients healthy.

Physicians liken all this data to drinking from a firehose because it is overwhelming. Many say it is very difficult or impossible to go through the large volumes of data to pick out what is clinically relevant or actionable. It is easy for things to fall through the cracks or for things to be lost to patient follow-up. This issue is further compounded when you add factors like increasing patient volumes, lower reimbursements, bundled payments and the conversion from fee-for-service to a fee-for-value reimbursement system. 

This is where artificial intelligence will play a key role in the next couple years. AI will not be diagnosing patients and replacing doctors — it will be augmenting their ability to find the key, relevant data they need to care for a patient and present it in a concise, easily digestible format. When a radiologist calls up a chest computed tomography (CT) scan to read, the AI will review the image and identify potential findings immediately — from the image and also by combing through the patient history  related to the particular anatomy scanned. If the exam order is for chest pain, the AI system will call up:

  • All the relevant data and prior exams specific to prior cardiac history;
  • Pharmacy information regarding drugs specific to COPD, heart failure, coronary disease and anticoagulants;
  • Prior imaging exams from any modality of the chest that may aid in diagnosis;
  • Prior reports for that imaging;
  • Prior thoracic or cardiac procedures;
  • Recent lab results; and
  • Any pathology reports that relate to specimens collected from the thorax.

Patient history from prior reports or the EMR that may be relevant to potential causes of chest pain will also be collected by the AI and displayed in brief with links to the full information (such as history of aortic aneurism, high blood pressure, coronary blockages, history of smoking, prior pulmonary embolism, cancer, implantable devices or deep vein thrombosis). This information would otherwise would take too long to collect, or its existence might not be known, by the physician so they would not have spent time looking for it.   

Watch the VIDEO “Examples of Artificial Intelligence in Medical Imaging Diagnostics.” This shows an example of how AI can assess aortic dissection CT images.
 

Watch the VIDEO “Development of Artificial Intelligence to Aid Radiology,” an interview with Mark Michalski, M.D., director of the Center for Clinical Data Science at Massachusetts General Hospital, explaining the basis of artificial intelligence in radiology.

At the 2017 Health Information and Management Systems Society (HIMSS) annual conference in February, several vendors showed some of the first concrete examples of how this type of AI works. IBM/Merge, Philips, Agfa and Siemens have already started integrating AI into their medical imaging software systems. GE showed predictive analytics software using elements of AI for the impact on imaging departments when someone calls in sick, or if patient volumes increase. Vital showed a similar work-in-progress predictive analytics software for imaging equipment utilization. Others, including several analytics companies and startups, showed software that uses AI to quickly sift through massive amounts of big data or offer immediate clinical decision support for appropriate use criteria, the best test or imaging to make a diagnosis or even offer differential diagnoses.  

Philips uses AI as a component of its new Illumeo software with adaptive intelligence, which automatically pulls in related prior exams for radiology. The user can click on an area of the anatomy in a specific MPI view, and AI will find and open prior imaging studies to show the same anatomy, slice and orientation. For oncology imaging, with a couple clicks on the tumor in the image, the AI will perform an automated quantification and then perform the same measures on the priors, presenting a side-by-side comparison of the tumor assessment. This can significantly reduce the time involved with tumor tracking assessment and speed workflow.  

Read the blog about AI at HIMSS 2017 "Two Technologies That Offer a Paradigm Shift in Medicine at HIMSS 2017."

 

AI is Elementary to Watson

IBM Watson has been cited for the past few years as being in the forefront of medical AI, but has yet to commercialize the technology. Some of the first versions of work-in-progress software were shown at HIMSS by partner vendors Agfa and Siemens. Agfa showed an impressive example of how the technology works. A digital radiography (DR) chest X-ray exam was called up and Watson reviewed the image and determined the patient had small-cell lung cancer and evidence of both lung and heart surgery. Watson then searched the picture archiving and communication system (PACS), EMR and departmental reporting systems to bring in:

  • Prior chest imaging studies;
  • Cardiology report information;
  • Medications the patient is currently taking;
  • Patient history relevant to them having COPD and a history of smoking that might relate to their current exam;
  • Recent lab reports;
  • Oncology patient encounters including chemotherapy; and
  • Radiation therapy treatments.

When the radiologist opens the study, all this information is presented in a concise format and greatly enhances the picture of this patient’s health. Agfa said the goal is to improve the radiologist’s understanding of the patient to improve the diagnosis, therapies and resulting patient outcomes without adding more burden on the clinician. 

IBM purchased Merge Healthcare in 2015 for $1 billion, partly to get an established foothold in the medical IT market. However, the purchase also gave Watson millions of radiology studies and a vast amount of existing medical record data to help train the AI in evaluating patient data and get better at reading imaging exams. IBM Watson is now licensing its software through third-party agreements with other health IT vendors. The contracts stipulate that each vendor needs to add additional value to Watson with their own programming, not just become a reseller. Probably the most important stipulation of these new contracts is that vendors also are required to share access to all the patient data and imaging studies they have access to. This allows Watson to continue to hone its clinical intelligence with millions of new patient records.  
 

The Basics of Machine Learning

Access to vast quantities of patient data and images is needed to feed the AI software algorithms educational materials to learn from. Sorting through massive amounts of big data is a major component of how AI learns what is important for clinicians, what data elements are related to various disease states and gains clinical understanding. It is a similar process to medical students learning the ropes, but uses much more educational input than what is comprehensible by humans. The first step in machine learning software is for it to ingest medical textbooks and care guidelines and then review examples of clinical cases. Unlike human students, the number of cases AI uses to learn numbers in the millions. 

For cases where the AI did not accurately determine the disease state or found incorrect or irrelevant data, software programers go back and refine the AI algorithm iteration after iteration until the AI software gets it right in the majority of cases. In medicine, there are so many variables it is difficult to always arrive at the correct diagnosis for people or machines. However, percentage wise, experts now say AI software reading medical imaging studies can often match, or in some cases, outperform human radiologists. This is especially true for rare diseases or presentations, where a radiologist might only see a handful of such cases during their entire career. AI has the advantage of reviewing hundreds or even thousands of these rare studies from archives to become proficient at reading them and identify a proper diagnosis. Also, unlike the human mind, it always remains fresh in the computer’s mind. 

AI algorithms read medical images similar to radiologists, by identifying patterns. AI systems are trained using vast numbers of exams to determine what normal anatomy looks like on scans from CT, magnetic resonance imaging (MRI), ultrasound or nuclear imaging. Then abnormal cases are used to train the eye of the AI system to identify anomalies, similar to computer-aided detection software (CAD). However, unlike CAD, which just highlights areas a radiologist may want to take a closer look at, AI software has a more analytical cognitive ability based on much more clinical data and reading experience that previous generations of CAD software. For this reason, experts who are helping develop AI for medicine often refer to the cognitive ability as “CAD that works.”

   

AI All Around Us and the Next Step in Radiology

Deep learning computers are already driving cars, monitoring financial data for theft, able to translate languages and recognize people’s moods based on facial recognition, said Keith Dreyer, DO, Ph.D., vice chairman of radiology computing and information sciences at Massachusetts General Hospital, Boston. He was among the key speakers at the opening session of the 2016 Radiological Society of North America (RSNA) meeting in November, where he discussed AI’s entry into medical imaging. He is also in charge of his institution’s development of its own AI system to assist physicians at Mass General. 

“The data science revolution started about five years ago with the advent of IBM Watson and Google Brain,” Dreyer explained. He said the 2012 introduction of deep learning algorithms really pushed AI forward and by 2014 the scales began to tip in terms of machines reading radiology studies correctly, reaching around 95 percent accuracy.

Dreyer said AI software for imaging is not new, as most people already use it on Facebook to automatically tag friends the platform identities using facial recognition algorithms. He said training AI is a similar concept, where you can start with showing a computer photos of cats and dogs and it can be trained to determine the difference after enough images are used. 

AI requires big data, massive computing power, powerful algorithms, broad investments and then a lot of translation and integration from a programming standpoint before it can be commercialized, Dreyer said. 

From a radiology standpoint, he said there are two types of AI. The first type that is already starting to see U.S. Food and Drug Administration approval is for quantification AI, which only requires a 510(k) approval. AI developed for clinical interpretation will require FDA pre-market approval (PMA), which involves clinical trials.

Before machines start conducting primary or peer review reads, Dreyer said it is much more likely AI will be used to read old exams retrospectively to help hospitals find new patients for conditions the patient may not realize they have. He said about 9 million Americans qualify for low-dose CT scans to screen them for lung cancer. He said AI can be trained to search through all the prior chest CT exams on record in the health system to help identify patients that may have lung cancer. This type of retrospective screening may apply to other disease states as well, especially if the AI can pull in genomic testing results to narrow the review to patients who are predisposed to some diseases. 

He said overall, AI offers a major opportunity to enhance and augment radiology reading, not to replace radiologists. 

“We are focused on talking into a microphone and we are ignoring all this other data that is out there in the patient record,” Dreyer said. “We need to look at the imaging as just another source of data for the patient.” He said AI can help automate qualification and quickly pull out related patient data from the EMR that will aid diagnosis or the understanding of a patient’s condition.  

Watch a VIDEO interview with Eliot L. Siegel, M.D., Dwyer Lecturer; Closing Keynote Speaker, Vice Chair of Radiology at the University of Maryland and the Chief of Radiology for VA Maryland Healthcare System, talks about the current state of the industry in computer-aided detection and diagnosis at SIIM 2016. 

Read the blog “How Intelligent Machines Could Make a Difference in Radiology.”


          Deep Learning in Medical Imaging to Create $300 Million Market by 2021   
deep learning, medical imaging, Signify Research market report, 2021
Signifiy Research, deep learning, medical imaging, product hierarchy, image analysis
Signify Research, world market, medical image analysis, deep learning, artificial intelligence

February 15, 2017 — Deep learning, also known as artificial intelligence, will increasingly be used in the interpretation of medical images to address many long-standing industry challenges. This will lead to a $300 million market by 2021, according to a new report by Signify Research, an independent supplier of market intelligence and consultancy to the global healthcare information technology industry.

In most countries, there are not enough radiologists to meet the ever-increasing demand for medical imaging. Consequently, many radiologists are working at full capacity. The situation will likely get worse, as imaging volumes are increasing at a faster rate than new radiologists entering the field. Even when radiology departments are well-resourced, radiologists are under increasing pressure due to declining reimbursement rates and the transition from volume-based to value-based care delivery. Moreover, the manual interpretation of medical images by radiologists is subjective, often based on a combination of experience and intuition, which can lead to clinical errors.

A new breed of image analysis software that uses advanced machine learning methods, e.g. deep learning, is tackling these problems by taking on many of the repetitive and time-consuming tasks performed by radiologists. There is a growing array of “intelligent” image analysis products that automate various stages of the imaging diagnosis workflow. In cancer screening, computer-aided detection can alert radiologists to suspicious lesions. In the follow-up diagnosis, quantitative imaging tools provide automated measurements of anatomical features. At the top-end of the scale of diagnostic support, computer-aided diagnosis provides probability-driven, differential diagnosis options for physicians to consider as they formulate their diagnostic and treatment decisions.

“Radiology is evolving from a largely descriptive field to a more quantitative discipline. Intelligent software tools that combine quantitative imaging and clinical workflow features will not only enhance radiologist productivity, but also improve diagnostic accuracy,” said Simon Harris, principal analyst at Signify Research and author of the report.

However, it is early days for deep learning in medical imaging. There are only a handful of commercial products and it is uncertain how well deep learning will cope with variations in patient demographics, imaging protocols, image artifacts, etc. Many radiologists were left underwhelmed by early-generation computer-aided detection, which used traditional machine learning and relied heavily on feature engineering. They remain skeptical of machine learning’s abilities, despite the leap in performance of today’s deep learning solutions, which automatically learn about image features from radiologist-annotated images and a "ground-truth”. Furthermore, the “black box” nature of deep learning and the lack of traceability as to how results are obtained could lead to legal implications. While none of these problems are insurmountable, healthcare providers are likely to take a ‘wait and see’ approach before investing in deep learning-based solutions.

“Deep learning is a truly transformative technology and the longer-term impact on the radiology market should not be underestimated. It’s more a question of when, not if, machine learning will be routinely used in imaging diagnosis”, Harris concluded.

“Machine Learning in Medical Imaging – 2017 Edition” provides a data-centric and global outlook on the current and projected uptake of machine learning in medical imaging. The report blends primary data collected from in-depth interviews with healthcare professionals and technology vendors, to provide a balanced and objective view of the market.

For more information: www.signifyresearch.net


          Stéphanie Pitre: A Golden Woman   
Winner of the 'Femme en Or 2008' award (literally: woman in gold, an award for exceptional women), Stéphanie Pitre is first and foremost a woman of passion. 'As part of my physics degree at the University of Paris 7, I did an internship in a scientific instrumentation laboratory. It was my first real encounter with research work and with scientific instrumentation. I loved both, that's why I decided to make this my career. As I am also interested in health, I chose to work with medical imaging, a particularly innovative field for applying these tools."
          First Korean biomedical researcher to win IEEE-EMBS Early Career Achievement Award   
(Pohang University of Science & Technology (POSTECH)) Chulhong Kim, Associate Professor of Creative IT Engineering at Pohang University of Science and Technology (POSTECH), has become the first Korean biomedical researcher to win the IEEE-EMBS Academic Early Career Achievement Award. Chulhong Kim's research has made remarkable contributions to the development of novel biomedical imaging techniques including photoacoustic tomography, ultrasound-modulated optical tomography, fluorescence imaging, and ultrasound imaging. The IEEE Engineering in Medicine and Biology Society is the world's largest international society of biomedical engineers.
          The Significance of X-rays in Medical Imaging – A Technical Overview   

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This article will elucidate how a typical x-ray imaging device works and what are the various uses of x-ray imaging in the healthcare domain. You will learn the following:   What are X-rays? The Components of an X-ray Imaging Device Factors affecting x-ray Image Quality Applications of X-ray based Medical Imaging Comparison of x-ray imaging with […]

          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist. Excellent compensation with opportunities to cross train....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
          Medical Imaging Aide/Clerk - Vancouver Coastal Health - Burnaby, BC   
Monitors and replenishes department inventories and ensures core supply levels are maintained, performs cleaning and tidying functions of the area, performs... $21.26 an hour
From Vancouver Coastal Health - Mon, 05 Jun 2017 19:30:52 GMT - View all Burnaby, BC jobs
          [Glenn Petersen] Kodak’s Old-School Response to Disruption By David Sax The New Yorker Janua...   
Kodak’s Old-School Response to Disruption

By David Sax
The New Yorker
January 27, 2016



Kodak’s Super 8 movie camera, which once appeared to be on the road to obsolescence, in an updated form at the 2016 Consumer Electronics Show, in Las Vegas.Credit PHOTOGRAPH BY PATRICK T. FALLON / BLOOMBERG VIA GETTY
______________________________________

Amid the giant televisions, Bluetooth-enabled baby socks, and virtual-reality headsets at the Consumer Electronics Show in Las Vegas earlier this month, Kodak calmly introduced a more low-key device. Its new Super 8 camera, which will go on sale this fall for a base price of four hundred dollars, is a reimagining of the analog Super 8 format that Kodak invented, in 1965. The new camera’s image-capture process remains relatively unchanged from the original design (light enters the lens and exposes the film), but the company has added a few modern digital features to this updated version. It will include a foldout LCD viewfinder and a computerized menu where light, exposure, and other variables can be controlled, and the audio will be simultaneously recorded onto a digital memory card, for later editing. This hybridized model extends to post-production as well: shoot your film and drop it in the mail, and Kodak processes it into negatives that you can display via a projector, digitally scans the footage, and uploads it to a cloud-based service where you can download and share it.

Beyond the technical specs, Kodak’s new camera is impressive for its chutzpah. The company introduced the Super 8 as a simple and affordable way to shoot motion pictures, essentially creating the home movie. But with the introduction, in the nineteen-eighties, of videotape, which was even simpler, less expensive, and more adaptable, Super 8 sales rapidly declined, and its prestige eroded for all but a few diehard fans. The same could be said for film as a whole. Kodak’s name has become a byword for discarded analog industries—the company invented the digital camera, then ignored it until, in 2012, competition from digital bankrupted it. Yet at C.E.S., Kodak generated more buzz than most other companies—the new Super 8 was featured, for example, on the “Tonight Show”—with a device that is neither fundamentally groundbreaking nor even especially new.

Kodak’s Super 8 project tells an interesting tale about opportunity and value in today’s post-digital economy. Over the past twenty years, the cult of disruption, which embraces the notion that, to succeed today, you must relentlessly innovate and overturn established products and businesses, has become the reigning gospel in the corporate world, especially in America. Frequently, the choice is placed in stark terms: Do you want to be Amazon or Barnes & Noble? Uber or the taxi industry? Instagram or Kodak?

But, while billions of dollars await those who create the next genuinely transformational technology, this goal remains implausible for most companies. For them, disruption is a distraction from investing in businesses with the proven ability to bring cash in the door today. Doing this means seeking out undervalued and neglected asset classes—the core of the meat-and-potatoes investing philosophy followed by everyone from real-estate speculators and private-equity firms to Warren Buffett. Compared to the astronomical market valuations of a tech unicorn, the returns offered by manufacturers of meat cleavers and potato peelers may seem paltry, but they’re dependable and long-term.

For a company like Kodak, this has meant looking beyond the surrounding tech push to revisit an earlier, successful product, and bringing it to what appears to be a simmering market. During an interview at C.E.S., Kodak’s C.E.O., Jeff Clarke, cited an “analog renaissance” as one of the drivers behind the new Super 8 camera. He was alluding to the resurgence, especially among younger consumers, of analog technologies like vinyl records and board games. In a world where digital formats are ubiquitous and often breathlessly promoted, the more restrained, tactile charms of analog goods appeal to a certain subset of consumers.

As a result, if you bought into a record-pressing plant, watchband factory, or a board-game café when those markets were facing serious technological disruption a decade ago, you’ve likely seen your investment grow significantly. According to Nielsen Soundscan, Americans bought nearly twelve million vinyl records in 2015, an increase of more than twelve hundred per cent since 2006. Fujifilm, meanwhile, projects that it will sell more than five million Instax instant-film cameras this year globally, compared to just under a million in 2010. The lesson appears to be that, eventually, disrupted businesses can settle into highly profitable niches: candles, bicycles, and fireplaces were all displaced by better technologies at one point, and yet companies make billions, and grow consistently, by manufacturing and selling these goods each year.

The Harvard Business School professor Ryan Raffaelli documented this process, which he calls technology reëmergence, in a paper published last year on the rise, fall, and resurgence of the Swiss watch trade. Switzerland dominated watchmaking until the nineteen-seventies, when inexpensive digital and quartz watches undercut the domestic industry and sales plummeted. Only after this disruption took place did the industry consider that its traditional expertise might allow it to market Swiss watches as a luxury product—not because it kept better time than a Casio watch, but because, thanks to its disruption, it had become a limited-run, high-value object, worth more by virtue of its scarcity. By 2008, Swiss manufacturers accounted for more than half of global watch exports.

Kodak is hoping to spark a similar resurgence. Following its bankruptcy, in 2012, the company split in two, with the British division (Kodak Alaris) continuing the still-film business, while Rochester’s Eastman Kodak focussed on motion-picture film, as well as the advanced-imaging technologies that drive most of its revenues (touchscreens, inkjet printers, medical imaging, and others). As recently as 2009, the year that Apple introduced the first video-camera-equipped iPhone, the 3GS, Kodak was still producing nearly twelve billion linear feet of motion-picture film; by 2014, the figure had dropped to about four hundred and fifty million. But film remains the core of Kodak’s brand identity, and the company has reaped dividends over the past few years, at least in terms of popular perception, by promising to reinvest in film and support it. Initially, this shift was spearheaded by Hollywood directors such as J. J. Abrams, Quentin Tarantino, and Christopher Nolan, who shoot on film and wanted to guarantee its supply. They claim to prefer its “warmth” and other aesthetic qualities, such as its granularity, as well as the artistic constraints that shooting on film imposes. These are subjective attributes, of course, but for some that’s part of the appeal.

Hollywood’s embrace has, in turn, led to a growing demand for film among independent and amateur filmmakers. Chris Kennedy, the executive director of the Liaison of Independent Filmmakers of Toronto, one of the few remaining Canadian sources for motion-picture film stock, told me that, mainly thanks to young filmmakers, from student directors to wedding videographers, demand for film has more than doubled over the past two years—especially for Super 8 stock, which is still relatively affordable. Kodak’s new Super 8 camera recognizes this demand, and creates potential for new growth. “Kodak’s new camera is something no one expected,” Kennedy said. “It’ll keep film alive for them and maybe even reinvigorate it a bit, because all those people who buy one will need film to put in it.”

The new Super 8 is by no means attempting to challenge the technological supremacy of today’s digital video cameras, or to disrupt the way people make home movies. What Kodak is selling is a renewed analog experience that taps into the scarcity of a historically resonant product, and that will ultimately, the company hopes, help it sell some film. It’s still a gamble, but it probably has a better chance of making money than the “smart” umbrella that appeared at C.E.S.—promising, perhaps, to disrupt the way we sing in the rain.

newyorker.com

          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          The Significance of X-rays in Medical Imaging – A Technical Overview   

Pinned onto Articles

This article will elucidate how a typical x-ray imaging device works and what are the various uses of x-ray imaging in the healthcare domain. You will learn the following:   What are X-rays? The Components of an X-ray Imaging Device Factors affecting x-ray Image Quality Applications of X-ray based Medical Imaging Comparison of x-ray imaging with […]
          MRI (Magnetic Resonance Imaging)   
STORY
teman-teman saya baru aja menjalani therapy MRI di salah satu Rumah Sakit di daerah Jakarta Pusat... saya terkagum dengan alat ini hingga akhirnya saya mencari informasi tentang MRT inii pertama saya takut sekali masuk ke dalam sebuah tabung seperti mau dikremasi saja hahaha tapi ternyata diluar dugaan tidak terjadi. apa2 dengan saya hanya sedikit bising. semoga bermanfaat.

MAGNETIC RESONANCE IMAGING

Magnetic Resonance Imaging (MRI), nuklir magnetic resonance imaging (NMRI), atau tomografi resonansi magnetik (MRT) adalah teknik pencitraan medis yang digunakan dalam radiologi untuk memvisualisasikan struktur internal rinci. MRI memanfaatkan milik resonansi magnetik nuklir (NMR) untuk citra inti atom dalam tubuh.

Mesin MRI menggunakan medan magnet yang kuat untuk menyelaraskan
magnetisasi dari beberapa atom dalam tubuh, dan medan frekuensi radio secara sistematis mengubah alignment magnetisasi ini. Hal ini menyebabkan inti untuk menghasilkan medan magnet berputar terdeteksi oleh informasi-scanner dan ini dicatat untuk membangun sebuah citra yang dipindai area tubuh 36 kuat gradien medan magnet menyebabkan inti di lokasi yang berbeda untuk memutar di berbagai kecepatan. informasi spasial 3-D dapat diperoleh dengan menyediakan gradien di setiap arah.

MRI memberikan kontras yang baik antara jaringan lunak tubuh yang berbeda, yang membuatnya sangat berguna dalam pencitraan otak, otot, jantung, dan kanker dibandingkan dengan yang lain teknik pencitraan medis seperti computed tomography (CT) atau sinar-X. Tidak seperti CT scan atau tradisional X-ray, MRI tidak menggunakan radiasi pengion.

Bagaimana MRI bekerja
Tubuh sebagian besar terdiri dari molekul air. Setiap molekul air memiliki dua inti hidrogen atau proton. Ketika seseorang berjalan di dalam medan magnet kuat dari pemindai, momen magnetik dari beberapa proton perubahan dan sejajar dengan arah lapangan.

Dalam sebuah mesin MRI pemancar frekuensi radio secara singkat diaktifkan, menghasilkan medan elektromagnetik. Foton dari bidang ini baru saja energi yang tepat, yang dikenal sebagai frekuensi resonansi, untuk flip spin dari proton selaras dalam tubuh. Sebagai intensitas dan durasi penerapan peningkatan lapangan, lebih selaras berputar terpengaruh. Setelah lapangan dimatikan, peluruhan proton ke negara asli spin-down dan perbedaan energi antara kedua negara dilepaskan sebagai sebuah foton. Foton inilah yang menghasilkan sinyal elektromagnetik yang pemindai mendeteksi. Frekuensi di mana proton bergaung tergantung pada kekuatan medan magnet. Sebagai hasil dari konservasi energi, ini frekuensi resonansi juga menentukan frekuensi foton dirilis. Foton dilepaskan ketika lapangan dilepas memiliki energi - dan karena itu frekuensi - karena jumlah energi proton diserap sementara lapangan aktif.

Ini adalah hubungan antara bidang-kekuatan dan frekuensi yang memungkinkan penggunaan resonansi magnetik nuklir untuk pencitraan. medan magnet tambahan diterapkan selama scan untuk membuat kekuatan medan magnet tergantung pada posisi dalam pasien, pada gilirannya membuat frekuensi foton dirilis tergantung pada posisi dalam cara yang dapat diperkirakan. Informasi posisi kemudian dapat pulih dari sinyal yang dihasilkan oleh penggunaan Fourier Transform. Bidang ini dibuat dengan melewatkan arus listrik melalui solenoida khusus-luka, yang dikenal sebagai kumparan gradien. Karena kumparan berada dalam menanggung pemindai, ada kekuatan besar di antara mereka dan kumparan medan utama, memproduksi sebagian besar suara yang terdengar selama operasi. Tanpa upaya untuk mengurangi kebisingan ini, bisa mendekati 130 desibel (dB) dengan bidang yang kuat. gambar yang dapat dibangun karena proton di berbagai jaringan kembali ke keadaan keseimbangan mereka di tingkat yang berbeda, yang merupakan perbedaan yang dapat dideteksi. Lima variabel jaringan yang berbeda -. Spin kepadatan, waktu relaksasi T1 dan T2 dan aliran dan pergeseran spektral dapat digunakan untuk membangun gambar Dengan mengubah parameter pada pemindai, efek ini digunakan untuk membuat kontras antara berbagai jenis jaringan tubuh atau antara sifat-sifat lainnya, seperti dalam fMRI dan difusi MRI.

agen mungkin Kontras disuntikkan intravena untuk meningkatkan penampilan pembuluh darah, tumor atau peradangan. agen Kontras juga mungkin langsung disuntikkan ke sendi dalam kasus arthrograms, gambar MRI sendi. Tidak seperti CT, MRI tidak menggunakan radiasi pengion dan umumnya prosedur yang sangat aman. Namun medan magnet yang kuat dan pulsa radio dapat mempengaruhi implan logam, termasuk implan koklea dan alat pacu jantung. Dalam kasus implan koklea, FDA AS telah menyetujui beberapa implan untuk kompatibilitas MRI. Dalam kasus alat pacu jantung, hasilnya kadang-kadang bisa mematikan, sehingga pasien dengan implan tersebut umumnya tidak memenuhi syarat untuk MRI.

MRI digunakan untuk gambar setiap bagian tubuh, dan terutama berguna untuk jaringan dengan banyak inti hidrogen dan kontras densitas kecil, seperti otak, otot, jaringan ikat dan tumor paling.
Sejarah

Magnetic Resonance Imaging adalah teknologi yang relatif baru. Gambar MR pertama diterbitkan pada tahun 1973 dan gambar cross-sectional pertama dari sebuah mouse hidup diterbitkan pada bulan Januari 1974. Penelitian dilakukan pada manusia pertama diterbitkan pada tahun 1977. Sebagai perbandingan, manusia pertama X-ray gambar diambil pada tahun 1895.

Aplikasi

Dalam praktek klinis, MRI digunakan untuk membedakan jaringan patologis (seperti tumor otak) dari jaringan normal. Satu keuntungan dari MRI scan adalah bahwa hal ini tidak berbahaya untuk pasien. Menggunakan medan magnet kuat dan radiasi non-ionisasi pada rentang frekuensi radio, tidak seperti CT scan dan tradisional X-ray, yang menggunakan kedua radiasi pengion.

Sementara CT memberikan resolusi spasial yang baik (kemampuan untuk membedakan dua struktur yang terpisah jarak sewenang-wenang kecil dari satu sama lain), MRI menyediakan resolusi sebanding dengan resolusi kontras jauh lebih baik (kemampuan untuk membedakan perbedaan antara dua jaringan secara sewenang-wenang serupa tetapi tidak identik). Dasar kemampuan ini adalah kompleks perpustakaan urutan pulsa yang pemindai MRI medis modern meliputi, masing-masing yang dioptimalkan untuk memberikan kontras gambar berdasarkan sensitivitas kimia MRI.
Pengaruh TR, TE, T1 dan T2 pada sinyal MR.

Misalnya, dengan nilai-nilai tertentu dari waktu gema (TE) dan waktu pengulangan (TR), yang merupakan parameter dasar akuisisi gambar, berurutan mengambil milik T2-pembobotan. Pada T2-tertimbang scan, air dan jaringan yang mengandung cairan yang cerah (urutan T2 paling modern yang benar-benar urutan cepat T2) dan jaringan yang mengandung lemak yang gelap. sebaliknya adalah benar untuk gambar T1-tertimbang. jaringan yang rusak cenderung untuk mengembangkan edema, yang membuat urutan T2-tertimbang sensitif untuk patologi, dan umumnya mampu membedakan jaringan patologis dari jaringan normal. Dengan penambahan pulsa frekuensi radio tambahan dan manipulasi tambahan dari gradien magnet, urutan T2 berbobot dapat dikonversi ke urutan FLAIR, di mana air bebas sekarang gelap, tapi jaringan edema tetap cerah. Urutan ini khususnya saat ini cara yang paling sensitif untuk mengeval
uasi otak untuk penyakit demielinasi, seperti multiple sclerosis.

Pemeriksaan MRI yang khas terdiri dari 5-20 urutan, masing-masing yang dipilih untuk menyediakan jenis informasi tertentu tentang jaringan subjek. Informasi ini kemudian disintesis oleh dokter menafsirkan.

Dasar MRI scan


scan T1-tertimbang adalah standar dasar scan, lemak membedakan khususnya dari air - dengan air yang lebih gelap dan terang lemak  menggunakan gradien echo (GRE) urutan, dengan TR TE dan pendek pendek. Ini adalah salah satu jenis dasar kontras MR dan merupakan umumnya dijalankan klinis scan. Bobot T1 dapat ditingkatkan (meningkatkan kontras) dengan penggunaan pulsa inversi seperti dalam sebuah urutan MP-RAGE. Karena waktu pengulangan singkat (TR) scan ini bisa dijalankan sangat cepat memungkinkan koleksi dataset 3D resolusi tinggi. Sebuah mengurangi T1 gadolinium agen kontras juga sering digunakan, dengan T1 scan dikumpulkan sebelum dan setelah pemberian bahan kontras untuk membandingkan perbedaan. Dalam otak scan T1-tertimbang memberikan materi abu-abu yang baik / kontras materi putih, dengan kata lain, gambar T1-tertimbang sorot penumpukan lemak.

T2-weighted MRI


scan T2-tertimbang lain adalah tipe dasar. Seperti T1-tertimbang scan, lemak dibedakan dari air - tetapi dalam kasus ini menunjukkan lemak yang lebih gelap, dan air ringan. Karena itu sangat cocok untuk edema pencitraan Pada scan otak. Materi putih serebral (mengandung lemak) sehingga menunjukkan sebagai lebih gelap dari abu-abu. scan T2-tertimbang menggunakan spin echo (SE) urutan, dengan TR TE dan panjang panjang. Mereka telah lama menjadi pekerja keras klinis sebagai urutan spin echo kurang rentan terhadap inhomogeneities di medan magnet.
T *
2-tertimbang MRI

T *
2 (diucapkan "T 2 bintang") scan tertimbang menggunakan gradien echo (GRE) urutan, dengan TR TE dan panjang panjang. gradien yang echo Urutan digunakan tidak memiliki pulsa memfokuskan kembali tambahan yang digunakan dalam spin echo sehingga dikenakan tambahan kerugian atas kerusakan T2 normal (disebut sebagai T2 '), T ini bersama-sama disebut diambil *
2. Hal ini juga membuat lebih rentan terhadap kerugian kerentanan di udara / batas jaringan, tetapi dapat meningkatkan kontras untuk jenis tertentu jaringan, seperti darah vena.
Spin kepadatan tertimbang MRI

kepadatan Spin, juga disebut densitas proton, scan tertimbang berusaha untuk tidak memiliki kontras baik dari pembusukan atau T1 T2, perubahan sinyal hanya berasal dari perbedaan dalam jumlah yang tersedia spin (nuklei hidrogen dalam air). Menggunakan spin echo atau kadang-kadang gradien echo urutan, dengan TR TE dan jangka panjang.

Khusus MRI scan
Difusi MRI


Difusi MRI mengukur difusi molekul air dalam jaringan biologi. Dalam sebuah media isotropik (di dalam segelas air misalnya) molekul air secara alami bergerak secara random sesuai dengan turbulensi dan gerakan Brown. Dalam jaringan biologi Namun, di mana jumlah Reynold adalah cukup rendah untuk aliran menjadi laminar, difusi mungkin anisotropik. Misalnya molekul dalam akson dari neuron memiliki probabilitas rendah melintasi membran mielin. Oleh karena itu molekul bergerak terutama sepanjang sumbu serat saraf. Jika kita tahu bahwa molekul dalam difus voxel tertentu terutama di satu arah kita dapat membuat asumsi bahwa mayoritas serat di daerah ini akan sejajar dengan arah itu.

Perkembangan terbaru difusi tensor imaging (DTI) memungkinkan difusi yang akan diukur dalam berbagai arah dan anisotropi pecahan di setiap arah harus dihitung untuk setiap voxel. Hal ini memungkinkan para peneliti untuk membuat peta otak arah serat untuk memeriksa konektivitas dari berbagai daerah di otak (menggunakan tractography) atau untuk memeriksa bidang degenerasi saraf dan demielinasi dalam penyakit seperti Multiple Sclerosis.

Aplikasi lain difusi pencitraan MRI difusi-tertimbang (DWI). Setelah stroke iskemik, DWI sangat sensitif terhadap perubahan yang terjadi pada lesi. Hal ini berspekulasi bahwa kenaikan pembatasan (hambatan) untuk resapan air, sebagai hasil dari sitotoksik edema (pembengkakan selular), bertanggung jawab untuk meningkatkan dalam sinyal pada DWI scan. Peningkatan DWI muncul dalam waktu 5-10 menit dari timbulnya gejala-gejala stroke (dibandingkan dengan tomografi komputer, yang sering tidak mendeteksi perubahan infark akut hingga 4-6 jam) dan tetap selama dua minggu. Ditambah dengan pencitraan perfusi otak, peneliti dapat menyoroti daerah "perfusi / mismatch difusi" yang dapat menunjukkan daerah mampu menyelamatkan dengan terapi reperfusi.

Seperti banyak aplikasi khusus lainnya, teknik ini biasanya digabungkan dengan urutan akuisisi gambar cepat, seperti echo urutan pencitraan planar.

Magnetisasi Transfer MRI

Magnetisasi transfer (MT) mengacu pada transfer magnetisasi longitudinal dari proton air bebas untuk proton air hidrasi di NMR dan MRI.

Dalam pencitraan resonansi magnetik solusi molekuler, seperti solusi protein, dua jenis molekul air, bebas (bulk) dan hidrasi (terikat), ditemukan. proton air gratis memiliki frekuensi rotasi lebih cepat rata-rata dan molekul air karena itu kurang tetap yang dapat menyebabkan inhomogeneity lapangan lokal. Karena keseragaman ini, proton air paling bebas memiliki frekuensi resonansi tergeletak sempit sekitar frekuensi resonansi proton normal 63 MHz (pada 1,5 teslas). Hal ini juga mengakibatkan dephasing magnetisasi transversal dan karenanya lebih lambat lagi T2. Sebaliknya, hidrasi molekul air diperlambat oleh interaksi dengan molekul zat terlarut dan karenanya menciptakan inhomogeneities lapangan yang mengarah ke spektrum resonansi frekuensi yang lebih luas.

Dalam cairan bebas, proton, yang dapat dilihat klasik sebagai dipol magnet kecil, menunjukkan translasi dan gerak rotasi. Dipol ini bergerak mengganggu medan magnet sekitarnya namun pada skala waktu yang cukup lama-(yang mungkin nanodetik) bidang rata-rata disebabkan oleh gerakan proton adalah nol. Hal ini dikenal sebagai "rata-rata yg menggerakkan" atau penyempitan dan karakteristik proton bergerak bebas dalam bentuk cair. Di sisi lain, proton terikat untuk makromolekul, seperti protein, cenderung memiliki orientasi tetap dan medan magnet sehingga rata-rata di dekat struktur tersebut tidak rata-rata nol. Hasilnya adalah pola tata ruang dalam medan magnet yang menimbulkan kopling dipole sisa (rentang frekuensi presesi) untuk proton mengalami medan magnet. Distribusi frekuensi yang luas muncul sebagai spektrum yang luas yang mungkin beberapa kHz lebar. Sinyal bersih dari proton ini menghilang sangat cepat, berbanding terbalik dengan lebar, karena hilangnya koherensi dari relaksasi, yaitu berputar T2. Karena mekanisme pertukaran, seperti transfer spin atau pertukaran proton kimia, (kacau) berputar terikat pada makromolekul terus bertukar posisi dengan (koheren) berputar di media massal dan membentuk kesetimbangan dinamis.

Magnetisasi transfer
: Meskipun tidak ada sinyal diukur dari terikat berputar, atau terikat berputar yang tukar ke media bulk, magnetisasi longitudinal mereka terpelihara dan dapat sembuh hanya melalui proses yang relatif lambat T1 relaksasi. Jika magnetisasi longitudinal hanya terikat berputar dapat diubah, maka efeknya dapat diukur dalam spin media massal karena proses pertukaran. Urutan transfer berlaku magnetisasi saturasi RF pada frekuensi yang jauh dari resonansi untuk saluran air sempit massal tapi masih pada resonansi untuk proton terikat dengan linewidth spektral kHz. Kejenuhan ini penyebab terikat spin yang tukar ke dalam air besar, mengakibatkan hilangnya magnetisasi longitudinal dan karenanya sinyal penurunan air massal. Ini memberikan ukuran tidak langsung konten makromolekul dalam jaringan. Implementasi transfer magnetisasi melibatkan offset memilih frekuensi yang cocok dan bentuk pulsa untuk jenuh terikat berputar cukup kuat, dalam batas-batas keamanan tingkat penyerapan spesifik untuk radiasi RF.

T1ρ (T1rho): Molekul memiliki energi kinetik yang merupakan fungsi dari suhu dan dinyatakan sebagai gerakan translasi dan rotasi, dan dengan tabrakan antara molekul. Dipol bergerak mengganggu medan magnet tetapi seringkali sangat cepat sehingga efek rata-rata selama skala-waktu yang lama mungkin nol. Namun, tergantung pada skala waktu, interaksi antara dipol tidak selalu rata-rata menjauh. Pada ekstrem paling lambat waktu interaksi secara efektif terbatas dan terjadi di mana terdapat besar, gangguan lapangan diam (misalnya implan logam). Dalam hal ini hilangnya koherensi digambarkan sebagai "dephasing statis". * T2 adalah ukuran hilangnya koherensi dalam sebuah ensemble dari spin yang mencakup semua interaksi (termasuk dephasing statis). T2 adalah ukuran dari hilangnya koherensi yang mengecualikan dephasing statis, menggunakan pulsa RF untuk membalikkan jenis interaksi dipole paling lambat. Ada sebenarnya sebuah kontinum skala waktu interaksi-dalam satu sampel biologis yang diberikan dan sifat dari pulsa memfokuskan kembali RF dapat disetel untuk kembali fokus lebih dari sekedar dephasing statis. Secara umum, tingkat kerusakan dari sebuah ensemble dari spins adalah fungsi dari waktu interaksi dan juga kekuatan pulsa RF. Jenis kerusakan, terjadi di bawah pengaruh RF, dikenal sebagai T1ρ. Hal ini mirip dengan pembusukan T2 tetapi dengan beberapa interaksi dipole lambat memfokuskan kembali serta interaksi statis.

Cairan pemulihan inversi dilemahkan (FLAIR)
 
Cairan Atenuasi Inversion Recovery (FLAIR)  adalah pulsa inversi-recovery urutan digunakan untuk null sinyal dari cairan. Sebagai contoh, dapat digunakan dalam pencitraan otak untuk menekan cerebrospinal fluid (CSF) sehingga untuk membawa keluar lesi hyperintense periventricular, seperti plak multiple sclerosis (MS). Dengan hati-hati memilih waktu inversi TI (waktu antara inversi dan pulsa eksitasi), sinyal dari jaringan tertentu bisa ditekan.

Resonansi magnetik angiography
Magnetic Resonance Angiography


Magnetic resonance angiography (MRA) menghasilkan gambar dari arteri untuk mengevaluasi mereka untuk stenosis (penyempitan abnormal) atau aneurisma (kapal dilatations dinding, beresiko pecah). MRA sering digunakan untuk mengevaluasi arteri pada leher dan otak, aorta dada dan perut, arteri ginjal, dan kaki (disebut "run-off"). Berbagai teknik dapat digunakan untuk menghasilkan gambar, seperti administrasi dari agen kontras paramagnetik (gadolinium) atau menggunakan teknik yang dikenal sebagai "peningkatan aliran-istimewa" (misalnya 2D dan 3D waktu-of-penerbangan urutan), di mana sebagian besar dari sinyal pada gambar adalah karena darah yang baru saja pindah ke pesawat itu, lihat juga FLASH MRI. Teknik melibatkan fase akumulasi (dikenal sebagai angiografi fase kontras) juga dapat digunakan untuk menghasilkan peta kecepatan aliran dengan mudah dan akurat. Venography resonansi magnetik (MRV) adalah prosedur yang sama yang digunakan untuk vena gambar. Dalam metode ini, jaringan sekarang bersemangat inferior, sedangkan sinyal dikumpulkan di pesawat segera unggul dari eksitasi pesawat-sehingga pencitraan darah vena yang baru saja pindah dari bidang bersemangat.

resonansi magnetik gated dinamika intrakranial CSF (MR-menyepuh)

resonansi magnetik gated cairan cerebrospinal intrakranial (CSF) atau dinamika minuman keras (MR-menyepuh) teknik adalah suatu urutan MR berdasarkan gradien pulsa bipolar digunakan untuk menunjukkan aliran CSF berdenyut di ventrikel, tangki air, saluran air dari Sylvius dan seluruh jalur intrakranial CSF. Ini adalah metode untuk menganalisis dinamika sistem sirkulasi CSF pada pasien dengan lesi obstruktif CSF seperti hidrosefalus tekanan normal. Hal ini juga memungkinkan visualisasi dari kedua aliran darah arteri dan vena berdenyut di kapal tanpa penggunaan agen kontras.
Waktu diastolik data akuisisi (DTDA). Sistolik data waktu akuisisi (STDA).

Spektroskopi resonansi magnetik

spektroskopi resonansi magnetik (MRS) digunakan untuk mengukur kadar metabolit yang berbeda dalam jaringan tubuh. Sinyal MR menghasilkan spektrum resonansi yang sesuai dengan pengaturan molekul yang berbeda dari isotop yang "bersemangat". tanda tangan ini digunakan untuk mendiagnosa gangguan metabolisme tertentu, terutama yang mempengaruhi otak, dan untuk memberikan informasi tentang metabolisme tumor.

Magnetic Resonance Imaging spektroskopi (MRSI) menggabungkan kedua metode spektroskopi dan pencitraan untuk menghasilkan spektra spasial lokal dari dalam sampel atau pasien. Resolusi spasial jauh lebih rendah (dibatasi oleh SNR tersedia), tetapi spektrum di setiap voxel berisi informasi tentang metabolit banyak. Karena sinyal yang tersedia digunakan untuk mengkodekan informasi spasial dan spektral, MRSI membutuhkan SNR tinggi dapat dicapai hanya pada kuat medan yang lebih tinggi (3 T dan di atas). 

MRI fungsional

Fungsional MRI (fMRI) mengukur perubahan sinyal di otak yang disebabkan oleh perubahan aktivitas saraf. Otak dipindai pada resolusi rendah tetapi pada tingkat yang cepat (biasanya sekali setiap 2-3 detik). Peningkatan aktivitas saraf menyebabkan perubahan dalam sinyal MR melalui T *
2 perubahan; mekanisme ini disebut sebagai BOLD (darah-oksigen-tingkat tergantung) efek. Peningkatan aktivitas saraf menyebabkan meningkatnya permintaan oksigen, dan sistem vaskular sebenarnya overcompensates untuk ini, meningkatkan jumlah hemoglobin beroksigen relatif terhadap hemoglobin terdeoksigenasi. Karena hemoglobin terdeoksigenasi melemahkan sinyal MR, respon pembuluh darah menyebabkan peningkatan sinyal yang berkaitan dengan aktivitas saraf. Sifat yang tepat dari hubungan antara aktivitas saraf dan sinyal BOLD adalah subjek penelitian saat ini. Efek BOLD juga memungkinkan untuk generasi peta 3D resolusi tinggi dari pembuluh vena dalam jaringan saraf.

Sementara sinyal BOLD adalah metode yang paling umum digunakan untuk studi neuroscience pada subyek manusia, sifat fleksibel pencitraan MR menyediakan sarana untuk menyadarkan sinyal untuk aspek-aspek lain dari suplai darah. Alternatif menggunakan teknik spin arteri pelabelan (ASL) atau berat sinyal MRI oleh aliran darah serebral (CBF) dan volume darah otak (CBV). Metode CBV membutuhkan suntikan kelas agen kontras MRI yang kini dalam uji klinis manusia. Karena metode ini telah terbukti menjadi jauh lebih sensitif dibandingkan dengan teknik BOLD dalam studi praklinis, itu berpotensi memperluas peran fMRI dalam aplikasi klinis. Metode CBF menyediakan informasi lebih kuantitatif dari sinyal BOLD, walaupun pada kerugian yang signifikan kepekaan deteksi.

Real-time MRI


MRI Real-time mengacu pada pemantauan kontinyu ("film") dari objek bergerak secara real time. Sementara berbagai strategi telah dikembangkan selama dua dekade terakhir, perkembangan baru-baru ini melaporkan sebuah teknik MRI real-time berdasarkan FLASH radial yang menghasilkan resolusi temporal 20 sampai 30 milidetik untuk gambar dengan resolusi di-pesawat 1,5 sampai 2,0 mm . Metode baru berjanji untuk menambahkan informasi penting tentang penyakit sendi dan jantung. Dalam banyak kasus pemeriksaan MRI mungkin menjadi lebih mudah dan lebih nyaman untuk pasien.

Intervensi MRI

Kurangnya efek yang merugikan pada pasien dan operator membuat MRI cocok untuk "radiologi intervensi", di mana gambar yang dihasilkan oleh scanner MRI digunakan untuk memandu prosedur invasif minimal. Tentu saja, prosedur tersebut harus dilakukan tanpa instrumen feromagnetik.

Sebuah subset tumbuh khusus MRI intervensi adalah bahwa dari MRI intraoperative di mana MRI digunakan dalam proses bedah. Beberapa MRI sistem khusus telah dikembangkan yang memungkinkan pencitraan bersamaan dengan prosedur bedah. Lebih khas, bagaimanapun, adalah bahwa prosedur operasi untuk sementara terputus sehingga MR gambar dapat diperoleh untuk memverifikasi keberhasilan prosedur atau memandu pekerjaan bedah berikutnya.
Terapi radiasi simulasi

Karena pencitraan MRI unggul tentang jaringan lunak, sekarang sedang digunakan untuk secara khusus menemukan tumor dalam tubuh dalam persiapan untuk perawatan terapi radiasi. Untuk simulasi terapi, pasien ditempatkan di spesifik, posisi direproduksi, tubuh dan dipindai. Sistem MRI kemudian menghitung lokasi bentuk, tepat dan orientasi massa tumor, mengoreksi distorsi spasial yang melekat dalam sistem. Pasien kemudian ditandai atau tato dengan poin yang, bila dikombinasikan dengan posisi tubuh tertentu, izin triangulasi tepat untuk terapi radiasi.

Kepadatan arus pencitraan


kepadatan pencitraan Lancar (CDI) berupaya untuk menggunakan informasi fase dari gambar untuk merekonstruksi rapat arus dalam subjek. pencitraan kepadatan kini bekerja karena arus listrik menghasilkan medan magnet, yang pada gilirannya mempengaruhi fase dipol magnetik selama urutan pencitraan. [
Resonansi magnetik terfokus dipandu USG

Dalam terapi MRgFUS, USG balok difokuskan pada jaringan-dipandu dan dikendalikan dengan menggunakan MR thermal imaging-dan akibat deposisi energi yang signifikan di fokus, suhu di dalam jaringan naik lebih dari 65 ° C (150 ° F), benar-benar menghancurkan itu. Teknologi ini dapat mencapai ablasi tepat dari jaringan yang sakit. pencitraan MR memberikan tampilan tiga dimensi dari jaringan target, memungkinkan untuk tepat memfokuskan energi ultrasound. Pencitraan MR menyediakan kuantitatif, real-time, gambar termal dari daerah yang dirawat. Hal ini memungkinkan dokter untuk memastikan bahwa suhu yang dihasilkan selama setiap siklus energi USG cukup untuk menyebabkan ablasi termal dalam jaringan yang diinginkan dan jika tidak, untuk menyesuaikan parameter untuk memastikan pengobatan yang efektif. Hal ini memungkinkan dokter untuk memastikan bahwa suhu yang dihasilkan selama setiap siklus energi ultrasoound cukup untuk menyebabkan ablasi termal dalam jaringan yang diinginkan dan jika tidak, untuk menyesuaikan parameter untuk memastikan pengobatan yang efektif.

Multinuclear imaging


Hidrogen adalah inti paling sering dicitrakan di MRI karena terdapat pada jaringan biologis dalam kelimpahan yang besar. Namun, setiap inti dengan spin nuklir bersih berpotensi bisa dicitrakan dengan MRI. inti tersebut termasuk helium-3, carbon-13, fluorin-19, oksigen-17, sodium-23, fosfor-31 dan xenon-129. 23Na, 31p dan 17O secara alami melimpah dalam tubuh, sehingga dapat dicitrakan secara langsung. Gas isotop seperti 3He atau 129Xe harus hyperpolarized dan kemudian menghirup kepadatan nuklir mereka terlalu rendah untuk menghasilkan sinyal yang berguna dalam kondisi normal. 17O, 13C dan 19F dapat diberikan dalam jumlah yang cukup dalam bentuk cair (misalnya 17O-air, solusi 13C-glukosa atau perfluorokarbon) yang hyperpolarization bukan suatu keharusan.

Multinuclear pencitraan pada dasarnya merupakan teknik penelitian saat ini. Namun, aplikasi potensial mencakup pencitraan fungsional dan pencitraan organ buruk dilihat pada 1H MRI (misalnya paru-paru dan tulang) atau sebagai agen kontras alternatif. Dihirup hyperpolarized 3He dapat digunakan untuk gambar distribusi ruang udara di dalam paru-paru. solusi injeksi yang mengandung 13C atau gelembung stabil dari 129Xe hyperpolarized telah dipelajari sebagai agen kontras untuk angiografi dan pencitraan perfusi. 31p berpotensi dapat memberikan informasi tentang kepadatan tulang dan struktur, serta pencitraan fungsional dari otak.
 
Kerentanan tertimbang imaging


Kerentanan pencitraan tertimbang , adalah jenis baru kontras di MRI berbeda dari kerapatan spin,, T1 atau T2 pencitraan. Metode ini memanfaatkan perbedaan kerentanan antara jaringan dan menggunakan kecepatan dapat dikompensasi, tiga dimensi, RF manja, resolusi tinggi, 3D gradien echo scan. Akuisisi ini data khusus dan pengolahan gambar menghasilkan gambar besarnya kontras ditingkatkan sangat sensitif terhadap vena, perdarahan darah dan penyimpanan besi. Hal ini digunakan untuk meningkatkan deteksi dan diagnosis tumor, pembuluh darah dan penyakit neurovaskular (stroke dan perdarahan, multiple sclerosis, Alzheimer's), dan juga mendeteksi cedera otak traumatis yang tidak dapat didiagnosis dengan menggunakan metode lain.

Lainnya khusus tekn
          Medical Imaging Aide/Clerk - Vancouver Coastal Health - Burnaby, BC   
Monitors and replenishes department inventories and ensures core supply levels are maintained, performs cleaning and tidying functions of the area, performs... $21.26 an hour
From Vancouver Coastal Health - Mon, 05 Jun 2017 19:30:52 GMT - View all Burnaby, BC jobs
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Joint Grad program Janelia/Johns Hopkins   
I am a rising third years BS Physics student at the University of Missouri-Columbia. By the time I apply for graduate programs I will have 3 years of research, two summer internships at Caltech, a publication, a ~3.2 gpa (I know), and a major gpa ~3.4. I am applying to the joint graduate program at the Janelia Farm Research Campus and the Johns Hopkins Neuroscience Program because my research interest include developing new biomedical imaging modalities. Unfortunately, my GPA is poor compared to the competition that I will face. With what I have stated above, what are my chances of getting into this program? Thank you!
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Design and applications of nanoparticles in biomedical imaging / Jeff W.M. Bulte, Michel M.J. Modo, editors   
Online Resource
          Medical imaging and augmented reality: 7th International Conference, MIAR 2016, Bern, Switzerland, August 24-26, 2016, Proceedings / Guoyan Zheng, Hongen Liao, Pierre Jannin, Philippe Cattin, Su-Lin Lee (eds.)   
Online Resource
          ASE swept source with self-tracking filter for OCT medical imaging   
An integrated swept wavelength tunable optical source uses a narrowband filtered broadband signal with an optical amplifier and self-tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal. The self-tracking arrangement is used where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.
          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist. Excellent compensation with opportunities to cross train....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
          aplikasi fisika dalam kehidupan sehari-hari   


 
Banyak orang yang beranggapan bahwa Fisika hanya sekedar ilmu biasa yang hanya mempelajari ilmu alam tanpa ada penerapannya. Terutama masih banyak orang yang beranggapan bahwa Fisika hanya mempelajari rumus. Dan tak sedikit yang  tidak menyadari bahwa banyak peristiwa bahkan hal-hal yang sangat dekat dengan kita melibatkan ilmu Fisika. Bahkan Fisika merupakan ilmu dasar yang sangat dibutuhkan oleh cabang ilmu-ilmu lain. Mengapa Fisika sangat penting dalam kehidupan kita? hayoo... mengapa ,,,, da yang tau gaa??? jawabannya , , Tentu karena banyak peristiwa dalam kehidupan kita yang melibatkan ilmu Fisika baik kita sadari maupun tan.pa kita sadari. Semakin kita memahami Fisika kita akan mengetahui bahwa Fisika mempunyai cakupan yang luas. nahh semakin penasaran kan,,, yuuk kita tengok apa aja sih aplikasi fisika itu ????

Aplikasi Gerak Lurus Beraturan
 
Gerak  Lurus Beraturan (GLB) merupakan gerak yang memiliki kecepatan yang konstan. Walaupun GLB sulit ditemukan dalam kehidupan sehari-hari, karena biasanya kecepatan gerak benda selalu berubah-ubah. " tapi bukan power rangers lohh,,," Misalnya ketika dirimu mengendarai sepeda motor atau mobil, laju mobil pasti selalu berubah-ubah. Ketika ada kendaraan di depan, pasti kecepatan kendaraan akan segera dikurangi. Hal ini agar kita tidak tabrakan dengan pengendara lain, terutama jika kondisi jalan yang ramai. Lain lagi jika kondisi jalan yang tikungan dan rusak. " wahh bisa parah tuhh..." yuuk kita liat contohnya. . .
C
 ontoh pertama : kendaraan yang melewati jalan tol. Walaupun terdapat tikungan pada jalan tol, kendaraan beroda bisa melakukan GLB pada jalan tol hal ini jika lintasan tol lurus. Kendaraan yang bergerak pada jalan tol juga kadang mempunyai kecepatan yang tetap.
Contoh kedua, 
gerakan kereta api atau kereta listrik di atas rel. Lintasan rel kereta kadang lurus, walaupun jaraknya hanya beberapa kilometer. Kereta api melakukan GLB ketika bergerak di atas lintasan rel yang lurus tersebut dengan laju tetap.
Contoh ketiga : 
kapal laut yang menyeberangi lautan atau samudera. Ketika melewati laut lepas, kapal laut biasanya bergerak pada lintasan yang lurus dengan kecepatan tetap. Ketika hendak tiba di pelabuhan tujuan, biasanya kapal baru mengubah haluan dan mengurangi kecepatannya.
Contoh keempat
 : gerakan pesawat terbang. Pesawat terbang juga biasa melakukan GLB. Setelah lepas landas, pesawat terbang biasanya bergerak pada lintasan lurus dengan dengan laju tetap. Walaupun demikian, pesawat juga mengubah arah geraknya ketika hendak tiba di bandara tujuan.

Aplikasi GLBB dalam kehidupan sehari-hari
 .
GLBB merupakan gerak lurus berubah beraturan. Berubah beraturan maksudnya kecepatan gerak benda bertambah secara teratur atau berkurang secara teratur. Perubahan kecepatan tersebut dinamakan percepatan. Secara awam sangat r menemukan benda yang melakukan gerak lurus berubah beraturan. Pada kasus kendaraan beroda misalnya, ketika mulai bergerak dari keadaan diam, pengendara biasanya menekan pedal gas (mobil dkk) atau menarik pedal gas (motor dkk). Pedal gas tersebut biasanya tidak ditekan atau ditarik dengan teratur sehingga walaupun kendaraan kelihatannya mulai bergerak dengan percepatan tertentu, besar percepatannya tidak tetap alias selalu berubah-ubah. Contoh GLBB dalam kehidupan sehari-hari pada gerak horisontal alias mendatar nyaris tidak ada.
Contoh GLBB yang selalu kita jumpai dalam kehidupan hanya gerak jatuh bebas. Pada gerak umit menemukan aplikasi GLBB dalam kehidupan sehari-hari.jatuh bebas, yang bekerja hanya percepatan gravitasi dan besar percepatan gravitasi bernilai tetap. Tapi dengan penerapa ilmu fisika, GLBB dapat ditemukan dalam kegiatan kita sehari-hari. Contohnya buah mangga yang lezat atau buah kelapa yang jatuh dari pohonnya.Jika kita pernah jatuh dari atap rumah tanpa sadar kita juga melakukan GLBB.

Aplikasi gerak vertikal dalam kehidupan sehari-hari :
 
Gerak vertikal terdiri dari dua jenis, yakni gerak vertikal ke atas dan gerak vertikal ke bawah. Benda melakukan gerak vertikal ke atas atau ke bawah jika lintasan gerak benda lurus. Kalau lintasan miring, gerakan benda tersebut termasuk gerak parabola. Aplikasi gerak vertikal dalam kehidupan sehari-hari misalnya ketika kita melempar sesuatu tegak lurus ke bawah (permukaan tanah), ini termasuk gerak vertikal.

Aplikasi gelombang elektromagnetik:
 
Saat ini hampir semua orang memiliki peralatan yang satu ini. Dia begitu kecil yang bisa dengan nyaman diletakkan di dalam saku, namun dianggap memiliki fungsi yang sangat besar terutama untuk berkomunikasi. Benda itu adalah sebuah ponsel (telepon seluler). Saat ini ponsel tidak hanya digunakan untuk menelpon saja tetapi juga untuk fungsi lain seperti mengirim dan menerima pesan singkat (sms), mendengarkan musik, atau mengambil foto. dan bisa juga internetan atau facebookan. Bagaimana perangkat ponsel dapat terhubung dengan perangkat ponsel yang lain padahal mereka saling berjauhan? bagaimana yaa. . . Konsep yang bisa menjelaskan fenomena ini adalah konsep gelombang elektromagnetik. Konsep gelombang elektromagnetik ternyata sangat luas tidak hanya berkaitan dengan TV atau ponsel saja, melainkan banyak aplikasi lain yang bisa sering kita temukan sehari-hari di sekitar kita. Aplikasi tersebut meliputi microwave, radio, radar, atau sinar-x. Selain itu karya Röntgen yang mengantarkan dirinya mendapatkan hadiah nobel fisika pada 1901 ini akan menjadi sebuah alat yang sangat berguna sekali dalam kedokteran. Sinar-X itulah sebuah fenomena yang ditemukan oleh Roentgen pada laboratoriumnya. Sebuah fenomena yang kemudian menjadi awal pencitraan medis (medical imaging) pertama, tangan kiri istrinya menjadi uji coba eksperimen penemuan ini. Inilah menjadi titik awal penggunaan pencitraan medis untuk mengetahui struktur jaringan manusia tanpa melalui pembedahan terlebih dahulu. Penemuan ini juga menjadi titik awal perkembangan fisika medis di dunia, yang menkonsentrasikan aplikasi ilmu fisika dalam bidang kedokteran.
Eksperimen Röntgen terhadap tangan istrinya, menjadi inspirasi produksi alat yang dapat membantu dokter dalam diagnosa terhadap pasien, dengan mengetahui citra tubuh manusia. Citra atau gambar yang dihasilkan dari sinar-X ini sifatnya adalah membuat gambar 2 dimensi dari organ tubuh yang dicitrakan dengan memanfatkan konsep atenuasi berkas radiasi pada saat berinterakasi dengan materi. Gambar atau citra objek yang diinginkan kemudian direkam dalam media yang kemudian dikenal sebagai film. Dari Gambar yang diproduksi di film inilah informasi medis dapat digali sesuai dengan kebutuhan klinis yang akan dianalisis.
Setelah puluhan tahun sinar-X ini mendominasi dunia kedokteran, terdapat kelemahan yaitu objek organ tubuh kita 3 dimensi dipetakan dalam gambar 2 dimensi. Sehingga akan terjadi saling tumpah tindih stukur yang dipetakan, secara klinis informasi yang direkam di film dapat terdistorsi. Inilah tantangan berikutnya bagi fisikawan untuk berkreasi. Tahun 1971, seorang fisikwan bernama Hounsfield memperkenalkan sebuah hasil invensinya yang dikenal denganComputerized Tomography atau yang lazim dikenal dengan nama CT Scan. Invensi Hounsfield ini menjawab tantangan kelemahan citra sinar-X konvensional yaitu CT dapat dapat mencitrakan objek dalam 3 Dimensi yang tersusun atas irisan-irisan gambar (tomography) yang dihasilkan dari perhitungan algoritma(bahasa program) komputer. Karya Hounsfield ini menjadi revolusi besar-besaraan dalam dunia pencitraan medis atau kedokteran yang merupakan rangkaian yang berkaitan. Citra/gambar hasil CT dapat menujukan struktur tubuh kita secara 3 dimensi, sehingga secara medis dapat dijadikan sebagai sebuah alat bantu untuk penegakkan diagnosa yang dibutuhkan. Untuk mengabadikan penemunya dalam CT terdapat bilangan CT atau Hounsfield Unit (HU), namun penemuan ini juga meruapakan jasa Radon dan Cormack.
Tahun 1990an, lahir kembali sebuah perangkat yang dikenal dengan nama Magnetic Resonance Imaging. Perangkat ini invensi yang tidak kalah hebatnya dengan CT, karena menggunakan sistem fisika yang berbeda. MRI istilah kerennya menggunakan pemanfaatan aktivitas fisis spin tubuh manusia pada saat berada dalam medan magnet yang kuat dan kemudian dengan sistem gangguan gelombang radio yang sama dengan frekuensi Larmor, menghasilkan sebuah sinyal listrik. Sinyal inilah yang dikenal dengan Free Induction Decayyang kemudian dievaluasi dengan Transformasi Fourier menjadi citra 3 Dimensi. Invensi ini juga sangat fenomenal, karena terobosan baru yang tidak menggunakan radiasi pengion seperti CT dan sinar Roentgen untuk dapat menghasilkan sebuah citra dengan resolusi yang yang sangat baik dalam mencitrakan stuktur tubuh manusia khususnya organ kepala. Inventor MRI mendapat ganjaran hadiah nobel bidang fisologi dan kedokteran tahun 2003.
Inilah sekelumit peranan fisika yang yang sangat revlusioner mengubah dunia kedokteran menjadi modern. Tanpa lahirnya sinar-X, CT, dan MR bagaimana kita dapat mengetahui posisi kelainan yang ada ditubuh kita bagian dalam atau kanker? Dengan karya fisikawan, insiyur, ahli komputer munculah sebuah teknologi yang digunakan untuk penegakkan diagnosa. Banyak teknologi lain yang dikembangkan oleh para fisikawan dan ilmuwan lain untuk kedokteran seperti halnya ultrasonografi, linear accelerator untuk radioterapi, dan juga CT dan USG 4 Dimensi.

Aplikasi energi(nuklir) dalam kehidupan sehari-hari:
 
Teknologi dan teknik penggunaan nuklir dapat memberikan manfaat dan kontribusi yang besar untuk pembangunan ekonomi dan kesejahteraan rakyat. Misalnya, nuklir dapat digunakan di bidang pertanian, seperti pemuliaan tanaman Sorgum dan Gandum dengan melalui metode induksi mutasi dengan sinar Gamma.
Di bidang kedokteran, teknik nuklir memberikan kontribusi yang tidak kalah besar, yaitu,terapi three dimensional conformal radiotherapy (3D-CRT), yang dapat mengembangkan metode pembedahan dengan menggunakan radiasi pengion sebagai pisau bedahnya. Dengan teknik ini, kasus-kasus tumor ganas yang sulit dijangkau dengan pisau bedah konvensional menjadi dapat diatasi, bahkan tanpa merusak jaringan lainnya.
Di bidang energi, nuklir dapat berperan sebagai penghasil energi Pembangkit Listrik Tenaga Nuklir (PLTN). PLTN dapat menghasilkan energi yang lebih besar dibandingkan pembangkit

Aplikasi hukum Newton:
Hukum  1 newton :
sebuah benda mempertahankan kedudukannya
contoh : jika kita dalam sebuah mobil saat mobil itu tiba2 maju badan kita tba2 terdorong ke belakang
Hukum  2 newton : kita berada dalam lift
hukum 3 newton : ini merupakan gaya aksi = reaksi
contoh : saat kita menekan papan tulis (aksi) maka papan tulis memberikan reaksi , bila aksi lebih besar dari pada reaksi maka papan tulis akan rusak dan sebaliknya

dari contoh aplikasi diatas , , , tidak jauh dari para ilmuwan kita yang sudah berjasa menciptakan karya-karya yang sekarang bisa kita nikmati,,,
Marilah para ilmuwan bangsaku, berlombalah berkreasi. Minimalnya untuk kemandirian kita akan teknologi untuk melayani kebutuhan bangsa sendiri….. Fisikawan Indonesia teruslah berkarya.

          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist. Excellent compensation with opportunities to cross train....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
           IBM Acquires Medical Imaging Firm for (Dollor) 1 Billon to Help Watson Supercomputer 'See'   
IBM revealed that it was boosting the capacity of its Watson supercomputer by acquiring the medical imaging group Merge Healthcare for (Dollor) 1 billon. The

          Device Week Podcast - Episode 97   
On this week's Medtech Insight podcast: amendments targeting device accessories, medical imaging and post-market surveillance tacked onto FDA Reauthorization Act; a project funded by the US Department of Homeland Security aims to improve device cybersecurity; FDA moves to implement more 21st Century Cures legislation; the Sentinel Cerebral Protection System gains de novo clearance; a report from the MiXii Biomed Life Sciences and Technology Conference in Tel-Aviv.
          (USA-DE-Dover) Biomedical Engineer Apprentice   
**About Us:** What do you envision for your future? At GE Healthcare, we strive to see life more clearly. Our "healthymagination" vision for the future invites the world to join us on our journey as we continuously develop innovations focused on reducing healthcare costs, increasing access and improving quality and efficiency around the world. We are a $17 billion unit of General Electric Company (NYSE: GE), employing more than 46,000 people worldwide and serving healthcare professionals in more than 100 countries. We believe in our strategy - and we'd like you to be a part of it. As a global leader, GE can bring together the best in science, technology, business and people to help solve one of the world's toughest challenges and shape a new age of healthcare. Something remarkable happens when you bring together people who are committed to making a difference - they do! For more information about GE Healthcare join our LinkedIn Group: GE Healthcare Global Community, http://linkd.in/p3Dqyk GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www.ge.com/sites/default/files/15-000845%20EEO%20combined.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. **Role Summary:** In this role, the Biomedical Technician Apprentice will respond to service calls to evaluate, diagnose, perform repair and planned maintenance (PM) on basic biomedical equipment and drive customer satisfaction through Service Excellence. **Essential Responsibilities:** • Under supervision, evaluate basic customer biomedical equipment issues, implement appropriate repairs; as assigned, perform planned maintenance (PM), safety, environmental inspections and maintain effective customer relations. Follow appropriate GE policies, procedures, hospital protocol and complete necessary documentation, as guided. • Maintain daily communications with customers as directed, to ensure resolution and proper follow-up, leading to customer satisfaction. As instructed, implement GE/customer facility contract, supporting business goals and objectives. • May assist more experienced technicians on progressive repairs and resolution. Work as a member of local team to provide efficient service delivery to all accounts within assigned area. • Document all repair actions and submit reports/summaries according to schedule. Maintain approved parts inventory. Manage vendor's service delivery processes in compliance with GE policies, as instructed. • Ensure proper care of spares, tools and test equipment and ensure calibration. Enhance and maintain technical knowledge of current standards, codes and procedures regarding safe and effective use of medical equipment formal instruction. • Meet Health and Human Services, as well as Environment Health and Safety requirements **Qualifications/Requirements:** • Current student or recent graduate of no more than 6 months from an A.S., B.S. or M.S. Electronics, Biomedical Engineering, Medical Imaging Technology or Mechanical Principles degree program or equivalent DOD military education. • Must maintain a cumulative GPA of a 3.0 or higher based on a 4.0 scale • Previous exposure to troubleshooting equipment and planned maintenance on basic biomedical or electronic equipment following current standards, code and procedures to ensure safe and effective operation of those devices. • Must be willing to submit to a background investigation, including verification of past employment, criminal history and education. • Willing to take a drug test. **Desired Characteristics:** • Previous experience interpreting schematic diagrams and perform effective repair and planned maintenance on basic biomedical or electronic equipment. • Ability to develop and maintain good customer relations. • Analytical and communication skills with the ability to communicate technical issues to the customer in an easy to understand manner. • Experience interfacing with both apprenticeal team members and external customers as part of a solution based service process. • Experience diagnosing and repairing mechanical, electromechanical, and/or electronic equipment in the electronic field - resulting in knowledge of electronic digital circuitry and understanding of electronic and electro-mechanical devices. • Change agent and process oriented. • Local candidates strongly preferred. **Locations:** United States; Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. GE will only employ those who are legally authorized to work in the United States for this opening. Any offer of employment is conditional upon the successful completion​ of a background investigation and drug screen.
          (USA-DE-Dover) Technical Support Engineer - Vascular   
**About Us:** GE Healthcare at http://www.gehealthcare.com provides transformational medical technologies and services to meet the demand for increased access, enhanced quality and more affordable healthcare around the world. GE works on things that matter - great people and technologies taking on tough challenges. From medical imaging, software & IT, patient monitoring and diagnostics to drug discovery, biopharmaceutical manufacturing technologies and performance improvement solutions, GE Healthcare helps medical professionals deliver great healthcare to their patients. **Learn** **More About Careers at GE** **Learn More About GE** **Healthcare** GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www.ge.com/sites/default/files/15-000845%20EEO%20combined.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. **Role Summary:** The Vascular Technical Support Engineer I (TSE I) drives customer satisfaction through Service Excellence by providing technical support and counsel both remote and onsite to Field Engineers (FE’s), Client Service Technicians (CST’s), and Customers experiencing system performance issues. This position is the technical resource for all service-related escalations regarding the Philips Allura FD, Clarity & Integris product families. **Essential Responsibilities:** + Provide remote and on-site technical support for the Philips Allura FD, Clarity & Integris product families and Workstations. + Use successful, effective field experience and knowledge to provide technical support to FE’s, CST’s, and customers that may include both remote and onsite support. + Maintain up-to-date knowledge of modality products, service expertise, and tools to maintain “field advisor” status. This includes a working knowledge of FDA FCO work instructions from the OEM. + Utilize the GEHC escalation process as needed, working closely with local customer and national support to define and support implementation of corrective action plans to resolve customer issues in a timely manner. + Utilize “Gameplan” tool to drive Service effectiveness. Contribute knowledge to the Problem Solution Database (PSDB). + Contribute to the improvement of productivity tools through idea generation, workout attendance, and project assignments as required. + Support Material and Purchased Service cost improvement initiatives for the modality. + Within project engagement, act as a change agent/ field "advisor" in areas such as product serviceability and reliability, quality trend analysis, productivity program development and implementation, national modality program execution and new product introduction support. + Manage and support improvements in business processes that maximize competitiveness, enabling continued business growth. This may include leveraging service capabilities by increasing the number of customer systems connected to the internet to improve remote troubleshooting and remote fix rates. + Work with Modality / Service Engineering, Product Engineering and field support specialists to drive product quality, serviceability, and resolve formal customer escalations. + Coach and train FE's to ensure that technical and customer skills are up to date and meet the needs of the business. On occasion may serve as subject matter expert (SME) for FE modality training through the Service Quality Standard (SQS) training curriculum. + Identify field process improvements such as pre-PM work, PM cycle time, remote TTR work, field-based technical training to support use of remote diagnostic troubleshooting tools and processes in the field. + Identify field quality improvements to include hazardous/ non-hazardous complaints via Trackwise. + Travel to customer sites and support installations, FMIs and customer escalations (CSOs). + Maintain and enhance modality knowledge, such as: Networking / Dicom / Insite / PACS / OS field service experience, knowledge of older legacy Vascular, X-ray, and CR/DR products. Knowledge and experience using Common Service Desktop, CRM and other remote tools as required. **Qualifications/Requirements:** **Basic Qualifications** + Minimum 5 years of engineering experience as an FE II and/or FE III, or the equivalent external to GE with regards to the repair and maintenance of Philips Vascular and X-ray products. Demonstrated ability to handle/resolve difficult technical issues with advanced knowledge in applicable systems and competitive Siemens service platforms. + High School Diploma/GED AND 8+ years of experience servicing mechanical and/or electrical equipment, OR… o Associate’s or Bachelor’s degree in Electrical, Mechanical, or Biomedical Engineering, or related field AND 5 years of experience servicing mechanical and/or electrical equipment or diagnostic imaging equipment from multiple OEM’s.o Equivalent military education to Associates or Bachelor's degrees AND 5 years of experience servicing mechanical and/or electrical equipment. + Demonstrated successful history of technical problem solving and resolution maintaining Philips vascular and x-ray equipment, including proven experience diagnosing and repairing mechanical, electromechanical, and/or electronic equipment. + Healthcare Imaging understanding to include post processing for Vascular, and X-ray, DICOM, PACS and/or Advanced computer networking. + Experience with Philips applications, Web applications, and the Microsoft suite of products. + Must have consistently performed as an FE II, or an FE III, or the equivalent external to GEHC for a period of 5 years before consideration of promotion to TSE I. + Experience interfacing with both internal team members and external customers as part of a solution based service process. + Ability to stay calm in pressurized situations and coach people through solving problems. + Exceptional teamwork, verbal and written communication skills. Exceptional interpersonal relationship skills! + Ability to extract applicable information during a troubleshooting process and use that information to help resolve issues remotely. + Experience responding to the concerns of and interfacing with both internal team members and external customers as part of a solution-based service process. + Travel to customer sites and support installations, FMIs and customer escalations (CSOs). + Willingness to be available "after hours", or work a rotating On-Call schedule, including weekends, for critical issues and coverage, as necessary. + Must have and maintain a valid Driver’s License. + Special Physical Requirements: Must be able to lift, carry, push, and pull up to 35 lbs. unassisted and frequently bend, stoop, twist, climb, crouch/squat, kneel/crawl, sit and stand for long periods of time. Must also be able to reach at, above and below shoulder level, flex/extend neck and have good hand and finger dexterity. Specific vision abilities required by this job may include color, close vision, distance vision, peripheral vision and depth perception. **Desired Characteristics:** + 2 or 4 year degree in an Engineering discipline + Strong customer service skills. + Highly motivated team player. + Prior project or technical leadership experience. + Training skills + Network Plus certification, or related networking experience + Basic financial analysis abilities + Lean / Six Sigma Certified **Locations:** United States; Alabama, Alaska, American Samoa, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Northern Mariana Islands, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, United States Minor Outlying Islands, Utah, Vermont, Virgin Islands, U.S., Virginia, Washington, West Virginia, Wisconsin, WyomingGE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.GE will only employ those who are legally authorized to work in the United States for this opening. Any offer of employment is conditional upon the successful completion​ of a background investigation and drug screen.
          (USA-DE-Dover) Clinical Product Specialist, CT   
**About Us:** GE Healthcare at http://www.gehealthcare.com provides transformational medical technologies and services to meet the demand for increased access, enhanced quality and more affordable healthcare around the world. GE works on things that matter - great people and technologies taking on tough challenges. From medical imaging, software & IT, patient monitoring and diagnostics to drug discovery, biopharmaceutical manufacturing technologies and performance improvement solutions, GE Healthcare helps medical professionals deliver great healthcare to their patients. **target=“_blank”>Learn More About Careers at GE** **Learn More About GE** **Healthcare** Additional Videos that may be used for GE Healthcare (cut & paste after the About Us verbiage) Engineering Video **Listen to the Stories of GEHC** **Engineers** Quality Video **Learn More About Quality at** **GEHC** Diversity Video About Us – Job 11 Thursday, March 02, 2017 **Diversity and Performance go** **together** **”** - **Jeff Immelt** , GE Chairman and CEO Milwaukee Video **Learn More** **About Living in Milwaukee** GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www.ge.com/sites/default/files/15-000845%20EEO%20combined.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. **Role Summary:** Drive clinical value evidence generation that supports the modality marketing plan on GE CT scanners by working with assigned customers. Drive Key Opinion Leaders (KOLs) collaboration to insure good connections with product development and research. Develop and sustain Reference Sites/ Luminary collaboration. Assist marketing in identifying and creating selling tools based on clinical studies. **Essential Responsibilities:** • Provide support to sales teams, including performing clinical demonstrations of CT advanced workstation applications Identify and develop (in collaboration with product marketing) clinical marketing materials that support the product marketing messages • Identify clinical outcome results that customers achieve with GE CT and collaborate with product marketing on developing these outcomes into sales tools • Establish and maintain close contacts and collaboration with KOLs (directly and through sales organization) to build a network of high profile customers • Conduct customer related application demonstrations when needed • Support sales activities as a clinical advisor to help CT achieve operating plan targets • Communicate customer feedback to Product Marketing and Product Management teams • Identify and developing key reference and show sites • Report data at scientific congresses, customer seminars and internal training events in collaboration with Product Marketing and Global Product Management • Support sales education initiatives such as trainings and educational materials for the sales team • Develop awareness and familiarity with clinical market trends, customer clinical trends on CT use, government regulatory impact and competitive influences • Assist in creation of marketing and sales tools for product shows, marketing literature and presentations • Assist with customer escalations when needed to help drive positive outcomes for customers **Qualifications/Requirements:** • Relevant scientific or clinical degree, or hospital registrations for Radiologic Technologist • Experience running CT scanners, preferably GE CT scanners • Experience working with CT advanced post processing workstations • Minimum five experience in medical industry, preferably in a clinical CT imaging environment • Experience working with hospital Radiologists, Cardiologists, and technologists • Must be able to travel 80-90% **Desired Characteristics:** • Bachelors degree or higher • Clinical experience with GE CT scanners • Experience in communicating scientific data (talks, posters, papers) • Team oriented to motivate and work well with a diverse cross functional skill • Training/educator skills • Product/engineering experience in the related modality • Good in communication and at presentation skills **Locations:** United States; California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Washington, Wisconsin, Wyoming GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. GE will only employ those who are legally authorized to work in the United States for this opening. Any offer of employment is conditional upon the successful completion​ of a background investigation and drug screen.
          (USA-DE-Dover) Program Manager-Enterprise Solutions   
**About Us:** GE Healthcare at http://www.gehealthcare.com provides transformational medical technologies and services to meet the demand for increased access, enhanced quality and more affordable healthcare around the world. GE works on things that matter - great people and technologies taking on tough challenges. From medical imaging, software & IT, patient monitoring and diagnostics to drug discovery, biopharmaceutical manufacturing technologies and performance improvement solutions, GE Healthcare helps medical professionals deliver great healthcare to their patients. **Learn** **More About Careers at GE** **Learn More About GE** **Healthcare** GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www.ge.com/sites/default/files/15-000845%20EEO%20combined.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. **Role Summary:** The Executive Program Manager works to facilitate the necessary resources and expertise to design and implement a successful project plan, this includes managing client engagement to ensure efficient and effective activation of the project. Typical projects are managed within a highly-matrixed environment with complex deliverables. **Essential Responsibilities:** • Work with GEHC account community to deliver on engagements by leading development of a robust project plan, engaging appropriate expertise and support, and ensuring clear and concise communication. • Support commercial growth objectives by participating in the deal construction process – including definition of program scope, outcomes and program plan. • Develop and deliver executive level presentations. • Demonstrate ability to drive multidisciplinary projects across P&L business. • Assist account team to drive growth in conjunction with region leaders, account community, deal hub, and service teams. • Coordinate project kick-off using PM CoE four phased program plan. • Coordinate the GE team to facilitate client interviews, collection of key data, set benchmarks, and measure quantifiable data. • Develop and implement governance structure which is best designed to deliver results outlined in the contracts. Define operating metrics with key leaders and take leadership role in driving accountability for metrics. • Manage project scope and mitigate risk across projects anticipating client’s needs and proposing alternative business solutions. • Drive collaboration and inclusiveness within respective GEHC business units. • Outline clear objectives and deliverables assigned to the work group, and at the same time maintain flexible approach when faced with business or client course corrections. • Implement Lean/CAP principals. **Qualifications/Requirements:** • Minimum of 7 years of project management experience – leading complex projects across multiple functions and business units in a highly matrix environment. • Demonstrated ability to create complex project plans, identify potential barriers, and develop contingency plans to ensure successful, on-time completion of project. • Demonstrated ability to develop strong, impactful relationships with executive leaders at client sites and internal to GE, driving strategic, long-term partnerships with the client. • Strong analytical skills and business acumen (i.e. knowledge of healthcare service lines, Profit & Loss centers, balance sheets, capital & operational planning). • 5+ years experience working in the Healthcare industry including interaction with hospital administration (i.e. account management, relationship-building experience). • Strong communication skills and ability to synthesize complex issues and communicate clearly. Self-starter, energizing, results oriented, able to multi-task and superior problem-solving skills. • Ablity to travel 60%. **Desired Characteristics:** • Defined critical thinking skills. • Healthcare experience, preferred provider side. • Experience with program governance. • Experience leading large change management projects. • Previous product or services sales experience. • Experience working in the Healthcare industry including interaction with hospital administration (i.e. account management, relationship-building experience). • Previous or current experience in GE. **Locations:** United States; Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming; Chicago GE offers a great work environment, professional development, challenging careers, and competitive compensation. GE is an Equal Opportunity Employer at http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf . Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. GE will only employ those who are legally authorized to work in the United States for this opening. Any offer of employment is conditional upon the successful completion​ of a background investigation and drug screen.
          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          The Significance of X-rays in Medical Imaging – A Technical Overview   

Pinned onto Articles

This article will elucidate how a typical x-ray imaging device works and what are the various uses of x-ray imaging in the healthcare domain. You will learn the following:   What are X-rays? The Components of an X-ray Imaging Device Factors affecting x-ray Image Quality Applications of X-ray based Medical Imaging Comparison of x-ray imaging with […]

          Fluoroscopy Devices Market is growing at a CAGR of 3.30% in Latin American Region.    
(EMAILWIRE.COM, June 29, 2017 ) Market Data Forecast recently published a report on the Latin America Fluoroscopy Market which estimates the market to grow from USD 224.2 million in 2016 to USD 263.74 million by 2021 with a CAGR of 3.30%. Fluoroscopy is a medical imaging technique with help of...
          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          CPT Code for CT Abdomen and Pelvis   
Correctly documenting scanning and imaging procedures used to diagnose a range of ailments and conditions is an essential effort when creating medical records. The CPT code for CT abdomen and pelvis scans can provide a more accurate way to document care and treatment. Learning about the coding systems used by the healthcare industry may be an important undertaking. Medical imaging often makes use of a wide range of equipment and procedures. Inaccurately documenting any steps made during the care and treatment of a patient can create serious problems. Coding offers a way for medical professionals to ensure documents can be created accurately and be understood more easily. Medical professionals who lack access to the right information are far more likely
          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          Chief Technologist 1 - Cobb Hospital - Vinings, GA   
Planned services at the new Vinings Health Park include diagnostic testing, such as medical imaging, lab, cardiac and sleep studies....
From WellStar Health System - Tue, 20 Jun 2017 22:45:27 GMT - View all Vinings, GA jobs
          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Excellent compensation with opportunities to cross train. Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
          Novel radiochemistry technique opens door to new PET imaging agents   
20 June 2017

A team of researchers led by SFU scientists Matthew Nodwell, Robert Britton and TRIUMF scientists Hua Yang and Paul Schaffer has demonstrated a new method for producing radiotracers for Positron Emission Tomography (PET) cancer scans, a type of medical imaging that produces images of organs and tissues inside the body.

A team of researchers led by SFU scientists Matthew Nodwell, Robert Britton and TRIUMF scientists Hua Yang and Paul Schaffer has demonstrated a new method for producing radiotracers.

Front Page Stories: 

          North America Diagnostic Imaging Market is expected to reach $12.91 billion by 2021 | Market Data Forecast   
(EMAILWIRE.COM, June 23, 2017 ) The North America Diagnostic Imaging Market was worth $9.45 billion in 2016 and estimated to be growing at a CAGR of 6.45%, to reach $12.91 billion by 2021. Medical imaging provides the visual image of the inside of the body for various purposes. Diagnostic imaging...
          Hyperbolic Harmonic Mapping for Surface Registration   
Automatic computation of surface correspondence via harmonic map is an active research field in computer vision, computer graphics and computational geometry. It may help document and understand physical and biological phenomena and also has broad applications in biometrics, medical imaging and motion capture industries. Although numerous studies have been devoted to harmonic map research, limited progress has been made to compute a diffeomorphic harmonic map on general topology surfaces with landmark constraints. This work conquers this problem by changing the Riemannian metric on the target surface to a hyperbolic metric so that the harmonic mapping is guaranteed to be a diffeomorphism under landmark constraints. The computational algorithms are based on Ricci flow and nonlinear heat diffusion methods. The approach is general and robust. We employ our algorithm to study the constrained surface registration problem which applies to both computer vision and medical imaging applications. Experimental results demonstrate that, by changing the Riemannian metric, the registrations are always diffeomorphic and achieve relatively high performance when evaluated with some popular surface registration evaluation standards.
          Sectra Publishes Annual Report and Corporate Governance Report for 2016/2017   

LINKÖPING, Sweden, June 29, 2017 /PRNewswire/ -- International medical imaging IT and cybersecurity company Sectra's (STO: SECT B) Annual Report for the 2016/2017 fiscal year is now available on www.sectra.com/annual_report. The Board of Directors' most recent...



          Mammography Technologist - WILLIAMSBURG MEDICAL IMAGING - Brooklyn, NY   
Busy outpatient diagnostic imaging facility in Brooklyn has opening for mammography technologist. Excellent compensation with opportunities to cross train....
From Indeed - Wed, 07 Jun 2017 18:25:23 GMT - View all Brooklyn, NY jobs
          Scheduler - Medical Imaging - North State Radiology Medical Group - Chico, CA   
MEDICAL IMAGING SCHEDULER Busy radiology practice is seeking an experienced and responsible person to handle various scheduling needs and interactions with
From Indeed - Fri, 23 Jun 2017 21:13:11 GMT - View all Chico, CA jobs
          Workflow and Experience Improvements — McKesson Cardiology   

McKesson is introducing the future of enterprise medical imaging and guiding thousands of healthcare enterprises like yours to the forefront of the ever-evolving healthcare landscape. With input from industry experts and an involved user community we have packed the new release of the McKesson Cardiology CVIS with enhancements you can use to help improve quality of care, boost efficiencies and reduce costs while helping to increase physician and staff satisfaction. For more information: www.mckesson.com/cardiology This video is sponsored by McKesson


          RADIOGRAPHY TECHNOLOGIST - TRINITY MEDICAL IMAGING - Etobicoke, ON   
WE ARE LOOKING FOR PART TIME RADIOGRAPHY TECHNOLOGIST. MUST HAVE GOOD STANDING WITH CAMRT/OMRT....
From Indeed - Sat, 03 Jun 2017 14:31:43 GMT - View all Etobicoke, ON jobs
          X-Ray Technologist - Oxford Medical Imaging - Toronto, ON   
Qualifications, Skills and Experience Diploma (Degree) in Radiography from an accredited institution. Casual X-Ray Technologist:....
From Oxford Medical Imaging - Fri, 02 Jun 2017 17:30:21 GMT - View all Toronto, ON jobs
          Combined Laboratory & X-Ray Technologist - Yukon Hospital Corporation - Watson Lake, YT   
Laboratory (chemistry, hematology and urinalysis), Electrocardiograms and medical imaging general and emergency radiography procedures;... $34.16 - $43.22 an hour
From Yukon Hospital Corporation - Thu, 08 Jun 2017 07:43:11 GMT - View all Watson Lake, YT jobs
          Duke Researchers Find a Shortcut to Predicting New Magnetic Materials   

High-performance magnets are ubiquitous in technology today, from hard drives to hybrid and electric vehicles to medical imaging equipment. The development of these magnets is a story itself. Only about 5 percent of inorganic materials are magnetic at all, and the development of high-performance magnets has proven to be a long and unpredictable process that largely relied on trial and error.
 
Magnetism is a highly sensitive phenomenon. From the perspective of the atomic structure, it requires the right confluence of properties and conditions, yielding a multitude of mechanisms for achieving magnetic ordering. It’s also not a very intuitive process, which makes it hard for humans to predict. Today, there are only about two dozen magnets suitable for technological applications.

Materials scientists from Duke University have demonstrated a shortcut to the traditional trial-and-error process. Using high throughput computational models that predict magnetism in new materials, the scientists have successfully developed, atom by atom, two new magnetic materials: cobalt, magnesium and titanium (Co2MnTi); and manganese, platinum and palladium (Mn2PtPd).

Using the computer model, the researchers focused on Heusler alloys, or materials made with atoms from three different elements arranged in one of three different structures. With 55 elements to choose from (and all possible potential arrangements), the manual process would have required testing 236,115 combinations. The model permitted the team to test hundreds of thousands of possibilities rapidly, resulting in two magnets that could be fabricated at thermodynamic equilibrium.

Corey Oses, a doctoral student in the Center for Materials Genomics at Duke and one of the co-authors of the research paper, told Design News that the goal was to speed up the process of developing new magnets.
“Not much progress had been made since about the 1980s, considering the current market for permanent magnets is still dominated by neodymium/samarium-based materials,” he said. “Unfortunately, the trial-and-error approach is not systematic: there is no known or direct path to the discovery of a new magnets. This research represents such a path, and has been validated by the discovery of two new magnets.”

 

Duke magnets

1Unit cells and phase stability of HAs. Possible HAs: (A) regular Heusler, (B) inverse Heusler, and (C) half Heusler. In (D), we show the unit cell used to construct the electronic structure database. (E) Ternary convex hull diagram for Al-Mn-Ni (note the presence of the stable HA, Ni2MnAl). (Image Source: Duke)

 

The team used the High-Throughput Framework AFLOW (Automatic FLOW for Materials Discovery), which leverages VASP (the Vienna Ab-Initio Simulation Package) for calculating the electronic structure and optimized atomic geometries. The AFLOW package populates the AFLOW.org repositories consisting of nearly 1.7 million compounds and their properties. One of these repositories is the Heusler database used by the team in their research. From the 236,115 possible combinations, the computational model identified 35,602 potentially stable compounds. Further testing for stability narrowed the list to 248, but only 22 materials showed a calculated magnetic moment. From here, the team narrowed the list to 14 by eliminating any materials with competing alternative structures “too close for comfort.”

“A thermodynamic analysis indicates the stability of candidate materials, determined by characterizing the energetic landscape,” Oses told Design News. “Stable structures define the minimum of this surface.  This can be seen as a ‘competition’ among structures of similar compositions for the minimum energy stable position. Depending on the particular system and the local environment of similar structures, the competition can be high (many similar structures near the minimum), or low (a clear ‘winner’ is present, with others far behind).  We defined a descriptor to quantify the intensity of this competition, and screened for the clear ‘winners.’”

When it came time to synthesize the materials, the lead researcher, Stefano Curtarolo, professor of mechanical engineering and materials science and director of Duke’s Center for Materials Genomics, and the team worked with Stefano Sanvito, professor of physics at Trinity College in Dublin, Ireland. Attempts to create four new materials predicted by the computer model resulted in success with the two final materials.

The materials developed are significant because they don’t involve the use of any rare-earth minerals, which are difficult to obtain. The high costs and limited availability of many existing high-performance magnets make them impractical for many applications. Additionally, one of the materials, Co2MnTi, also featured an unusually high "Curie temperature,” which is desirable in a high-performance magnet.

“Magnetization in ferromagnetic materials is the result of the alignment of electronic spins,” Oses told Design News. “Temperature can disrupt such alignment, as it can induce spin-flips. The Curie temperature is the (material-specific) temperature at which the alignment disappears (cancellation of spin up vs. spin down). In other words, the temperature at which the material loses its magnetization.  A high Curie temperature ensures that the material can function in a wide range of operating conditions.”

The research team notes that their work isn’t about the two specific magnetic materials they developed, but the process itself, which paves the way for large-scale design of novel magnetic materials at potentially high speed. These new materials will be significant to any device or apparatus that uses an electromagnet: motors, wind turbines, transformers, MRI machines, hard disks for computer memory and more, including (potentially) the long-anticipated promises of maglev transportation devices.

Going forward, the team plans to continue combing through the Heusler family for more magnets and leveraging the same approach in new families of materials. The researchers’ work was published in Science Advances.


          Ultrasound Technologist - Oxford Medical Imaging - Waterloo, ON   
Qualifications, Accreditations, Skills and Experience Must be registered with Sonography Canada (formerly CARDUP) and/or ARDMS Graduate from an approved...
From Oxford Medical Imaging - Wed, 28 Jun 2017 17:28:24 GMT - View all Waterloo, ON jobs
          Pricing Manager - Hologic - Danbury, CT   
PROS, Vendavo, Model-N. Is a leading developer, manufacturer and supplier of premium diagnostic products, medical imaging systems and surgical products....
From Hologic - Mon, 27 Mar 2017 22:54:33 GMT - View all Danbury, CT jobs
          Seminar on NIH Funding Mechanisms   

Zeynep Erim, Ph.D., program director for the Division of Inter-Disciplinary Training at the National Institutes of Health (NIH), will give a talk on the agency's funding mechanisms for trainees and junior investigators at 10 a.m. on Friday, April 10 in 210 Kupfrian Hall.

Tagged: national institutes of health, nih, national institute of biomedical imaging and bioengineering, division of inter-disciplinary training, ph.d, zeynep erim