Navigation Links
Children's National Medical Center Breaks MRI Speed Sound Barrier

BETHESDA, Md., May 8, 2012 /PRNewswire/ -- A team of scientists led by Dr. Stanley Fricke of the Children's National Medical Center in Washington DC, broke the "Magnetic resonance imaging (MRI) sound barrier," a finding that could lead to a hundred-fold increase in MRI speed, according to a new clinical study published this week in the peer-reviewed journal Medical Physics. "Our ultimate goal," said Dr. Fricke, "is to image small children in seconds rather than minutes. In this way children will not need to be anesthetized prior to imaging."

Past attempts to substantially accelerate MR imaging failed because gradient pulse sequences (the technology responsible for image formation in an MR machine) can cause twitching or more serious nerve stimulation. To prevent such unwanted and potentially dangerous side effects, the FDA and European regulators put in place limits on gradient strength and speed, based on older clinical studies that used relatively slow gradients. The new Medical Physics study used pulse sequences with rise times 100x faster than conventional MRI to prove that nerve stimulation could be eliminated by employing ultra-fast magnetic gradients.

According to Dr. Fricke, "the old speed limits may need to be reviewed in light of this new data. The new technology could lead to the adoption of MRI as a first-line method of assessing coronary artery disease, improve high-resolution brain mapping, and implement low-cost dental MRI as a potential non-ionizing-radiation alternative to x-rays." Dr. Benjamin Shapiro, a team member from University of Maryland's Fischell Department of Bioengineering, has proposed using the high gradients with magnetic nanoparticles to improve image-guided minimally-invasive therapy.  

The landmark study, funded by the National Institute of Neurological Disorders and Stroke and the National Heart Lung and Blood Institute, challenges decades of conventional wisdom in the MRI field. Increasing the speed and magnitude of gradients has been a long-sought goal in the medical imaging community. "Prior clinical studies concluded that nerve stimulation prevented the use of strong gradient pulse sequences," commented Dr. Fricke.  He characterized the speed breakthrough as both metaphorically and literally "breaking the sound barrier," since the higher MRI frequency is beyond human hearing ability.

The ultra-strong and ultra-fast gradient technology to break the MRI sound barrier was produced with industry-leading instrumentation created by Weinberg Medical Physics LLC, an innovative R&D lab in Bethesda, Maryland. Last week, the company was granted a patent for non-stimulating magnetic gradient generation methods.

Media Contact:
Dr. Irving Weinberg
(301) 564-0835

SOURCE Weinberg Medical Physics LLC
Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. Vicus Therapeutics to Present at the 234th American Chemical Society National Meeting in Boston, MA
2. National Stem Cell Holding, Inc. Discovers Non-Embryonic Biomaterials that Promote Tissue Repair
3. Intellect Neurosciences, Inc. to Present Data on Alzheimers Vaccine at 13th International Congress of Immunology Conference
4. Paper in International Journal of Oncology Reports Alfacells ONCONASE(R) Suppresses Intracellular Oxidative Stress
5. Ozarelix Phase 2 Data Presented at 29th Congress of the Societe Internationale dUrologie
6. Anadys Pharmaceuticals Presents Preclinical Results on ANA598, a Non-Nucleoside Inhibitor of the NS5B Polymerase, at the 14th International Symposium on Hepatitis C Virus and Related Viruses
7. Public Forum to Discuss Addiction as a Treatable Disease and Highlight National Alcohol and Drug Addiction Recovery Month
8. K-State Researchers Bringing Expertise to Kansas City Symposium on Disease and National Security
9. International Expert Group Initiates Largest Multi-center Phase III Trial to Evaluate NeuroAid(TM) in Stroke Recovery
10. September is National Pain Awareness Month
11. Virogenomics, Inc. Awarded $2 Million National Institute of Standards and Technology (NIST) Advanced Technology Program Grant to Develop Integrated Diagnostic Biosensors
Post Your Comments:
(Date:6/24/2016)... OAKLAND, N.J. , June 24, 2016 /PRNewswire/ ... in the design, development and manufacturing of collagen ... and regeneration announced today that Bill Messer ... Sales and Marketing to further leverage the growing ... surgery medical devices. Bill joins the ...
(Date:6/24/2016)... Dublin - ... " Global Markets for Spectroscopy Equipment" report ... This report focuses on the global market of ... applications in various applications. The report deals with spectroscopy ... industries: pharmaceutical and biotechnology, food and beverage, and environmental ...
(Date:6/24/2016)... Dehaier Medical Systems Ltd. (NASDAQ: DHRM ) ... medical devices and wearable sleep respiratory products in ... with Hongyuan Supply Chain Management Co., Ltd. (hereinafter referred ... to develop Dehaier,s new Internet medical technology business. ... Hongyuan Supply Chain,s sales platform to reach Dehaier,s dealers ...
Breaking Medicine Technology:
(Date:6/27/2016)... ... , ... TherapySites, the leading website and online ... Counseling Association. This new relationship allows TherapySites to continue to extend their ... benefits and promotional offers. , "TCA is extremely excited about this new partnership, ...
(Date:6/26/2016)... , ... June 27, 2016 , ... Quality metrics are ... in many ways they remain in the eye of the beholder, according to experts ... publication of The American Journal of Managed Care. For the full issue, click ...
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is helping ... fitness app. The fitness app plans to fix the two major problems leading the fitness ... size fits all type program , They don’t eliminate all the reasons people ...
(Date:6/25/2016)... ... , ... The temporary closing of Bruton Memorial Library on June 21 due to a possible ... often overlooked aspect of head lice: the parasite’s ability to live away from a human ... but a necessary one in the event that lice have simply gotten out of control. ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
Breaking Medicine News(10 mins):