Save the Date - Our next Clean Sweep Live Auction will be on Tuesday, September 26th at 9:30AM EST

DOTmed Home MRI Oncology Ultrasound Molecular Imaging X-Ray Cardiology Health IT Business Affairs
News Home Parts & Service Operating Room CT Women's Health Proton Therapy Endoscopy HTMs Mobile Imaging
Current Location:
> This Story

Log in or Register to rate this News Story
Forward Printable StoryPrint Comment


More Magazine Features

Radiation therapy gets more targeted and personalized An overview of new software and equipment innovations

What factors impact the success of a proton therapy facility? Treatment is gaining ground all over the world, but not every new facility is a success

Rethinking CT in the value-based era How premium systems may save your facility money

Get your bearings in a rapidly changing X-ray tube industry A market segment that has recently seen a number of shake-ups

Third-party medical equipment service: high stakes in the ongoing debate Checking in with the FDA's examination of third-party stakeholders

See All Magazine Features  

MRI Homepage

Study finds MR detects 98 percent of pregnancy-related breast cancers May also inform surgical management of disease

Michigan appeals court case could test lay-ownership of MR facility laws Must imaging facilities be owned by doctors?

PET/MR scans can assess pediatric cancer survivor health Study targets chemotherapy after-effects in young patients

New guidelines advise against the use of brain imaging to diagnose chronic pain Researchers continue to look for brain-based biomarkers

FDA approves sale of SyMRI IMAGE software for GE Healthcare MR scanners Reduces scan times

FDA panel: Add retention warning to gadolinium contrast agents MIDAC also votes to increase studies conducted by contrast manufacturers

Study finds MR can measure kidney scarring and predict future kidney function Could also test new anti-scarring treatments

Resilience Capital Partners acquires three medical device service and manufacturing companies Forms Innovatus Imaging Corporation

Children’s National Health System first U.S. pediatric institution to use MR-HIFU Requires no incision

Doctors to apply for CT and MR scan permission under Anthem Aimed at reducing hospital outpatient imaging services

A prostate MR image
obtained using
Siemens Healthineers’ Body
30/60 surface coil

MR coils: the pursuit of a better signal-to-noise ratio

by Lauren Dubinsky , Senior Reporter
From the October 2016 issue of DOTmed HealthCare Business News magazine

The signal-to-noise ratio (SNR) of MR imaging is intrinsically weak and limits the speed of the exam and the resolution of the images. Researchers at the University of Houston (UH) have developed a high-temperature superconducting coil called the cryo-coil that boosts the SNR by a factor of two to three compared to conventional coils.

“For small coil sizes at high-field MRI, when the coil noise is the governing source of noise, it has long been recognized that cooling the receiving coils or using high critical temperature superconductors (HTS) materials reduce this noise contribution and therefore can significantly increase the SNR,” says Jarek Wosik, a principal investigator at the Texas Center for Superconductivity at UH.

Story Continues Below Advertisement

The (#1 Resource) for Medical Imaging and Peripherals. Call 1-949-273-8000

As a Master Distributor for major brands Barco, Philips, and Sony, we offer custom imaging solutions. With our renowned OEM Solutions and Service/Repair Center, Ampronix is a one-stop shop for HD Medical LCD Displays--Printers--Recorders--4K Cameras

The improved SNR from the cryo-coil allows physicians to see details that cannot be seen when conventional coils are used. Those details don’t show up even when multiple images are acquired using conventional coils. For initial studies, the cryo-coil has been optimized for rat brain imaging. At the International Symposium of Magnetic Resonance in Medicine’s annual meeting in May, the researchers reported that they demonstrated an isotropic resolution of 34 microns in rat brain imaging.

The cryo-coil has been developed for preclinical MR imaging, but it’s also intended for clinical imaging. Since clinical applications involve imaging a larger area, an array of small coils needs to be used. The research in animal models produces useful information for improving diagnosis and treatment of human diseases and disorders. This work has the potential to benefit clinical MR through highquality imaging and by shortening the time the patients are in the scanner, according to Wosik.

The researchers have already built two prototypes, which have been installed at the University of Texas Medical School and are collecting data. UH’s spinoff company, Cryo-sensors, is in the process of writing Small Business Innovation Research proposals for the cryocoil, and Wosik expects a commercial coil to be available within one to two years. A few companies have introduced cryogen-free magnets to the market, which could provide a much easier way to integrate cryocoils into MR. MR Solutions offers a 7T preclinical, cryogen-free MR system, and Time Medical Systems is offering a similar scanner.

Another way to improve SNR
Since poor coil placement results in a large loss in SNR, a coil that fits perfectly on top of the patient’s anatomy is ideal. Researchers from the University of California, Berkeley, have found a way to create light, flexible MR coils with screen printing technology. The coils can be individually designed with the screen printer to fit patients of different sizes, including infants and toddlers. They can also be custom made for individual patients.
  Pages: 1 - 2 - 3 >>

MRI Homepage

You Must Be Logged In To Post A Comment

Increase Your
Brand Awareness
Auctions + Private Sales
Get The
Best Price
Buy Equipment/Parts
Find The
Lowest Price
Daily News
Read The
Latest News
Browse All
DOTmed Users
Ethics on DOTmed
View Our
Ethics Program
Gold Parts Vendor Program
Receive PH
Gold Service Dealer Program
Receive RFP/PS
Healthcare Providers
See all
HCP Tools
A Job
Parts Hunter +EasyPay
Get Parts
Recently Certified
View Recently
Certified Users
Recently Rated
View Recently
Certified Users
Rental Central
Rent Equipment
For Less
Sell Equipment/Parts
Get The
Most Money
Service Technicians Forum
Find Help
And Advice
Simple RFP
Get Equipment
Virtual Trade Show
Find Service
For Equipment
Access and use of this site is subject to the terms and conditions of our LEGAL NOTICE & PRIVACY NOTICE
Property of and Proprietary to DOTmed.com, Inc. Copyright ©2001-2017 DOTmed.com, Inc.