Navigation Links
Children's National Medical Center Breaks MRI Speed Sound Barrier
Date:5/8/2012

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:
*Name:
*Comment:
*Email:
(Date:12/6/2016)... 6, 2016  Arcturus Therapeutics, Inc. ("Arcturus" or ... today that it entered into collaboration with Takeda ... the treatment of NASH and other gastrointestinal (GI) ... LUNAR™ and UNA Oligomer chemistry. The financial terms ... commitment to and expertise in GI disorders, we ...
(Date:12/6/2016)... 6, 2016 Breast Pump Market size is ... report by Global Market Insights, Inc. Continue Reading ... ... , , ... growing women employment rates and rising consumer awareness regarding importance of breast feeding ...
(Date:12/5/2016)... , Dec. 5, 2016  Balloon catheter is ... which is inserted into the femoral artery in the ... arm to treat constricted blood vessels. These products are ... to atherosclerosis – deposition of lipid substances in the ... catheter market is projected to expand at a CAGR ...
Breaking Medicine Technology:
(Date:12/7/2016)... ... December 07, 2016 , ... Maureen ... Program at Reproductive Medicine Associates of Connecticut (RMACT). McLaughlin brings nearly 20 years ... three acupuncturists to help patients realize their family building goals. Acupuncture helps ...
(Date:12/7/2016)... ... (PRWEB) December 07, 2016 , ... Angioma ... by cerebral cavernous angiomas, was awarded a grant from the Julian Grace Foundation ... New Mexico has more people with cavernous angioma than anywhere in the world. ...
(Date:12/6/2016)... (PRWEB) , ... December 06, 2016 , ... ... their brain networks that can be seen on a type of MRI, according ... is a progressive disorder of the central nervous system characterized by tremors or ...
(Date:12/6/2016)... ... , ... An inventor, from Talladega, Ala., thought there needed to be a ... SLING-VEST. , The SLING-VEST provides an effective way to support and align the arm ... a result, it helps to reduce discomfort and shifting. The invention features an effective ...
(Date:12/6/2016)... ... 2016 , ... In anticipation for the New Year, Dr. Mayoor Patel has ... courses in 2017, dentists of all levels can continue to advance the services offered ... attend a variety of continuing education courses each month on topics ranging from sleep ...
Breaking Medicine News(10 mins):