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:6/24/2016)... HILL, N.C. , June 24, 2016 /PRNewswire/ ... healthcare decisions and regulators/payers have placed more emphasis ... new environment, patient support programs in the pharmaceutical ... for patients, medications. Consequently, pharmaceutical companies are focusing ... ensure they are providing products and services that ...
(Date:6/24/2016)... , June 24, 2016   Bay Area ... Network,s Dean Center for Tick Borne Illness ... and Rehabilitation, MIT Hacking Medicine, University of California, ... today announced the five finalists of Lyme ... disease.  More than 100 scientists, clinicians, researchers, entrepreneurs, ...
(Date:6/24/2016)... Va. , June 24, 2016 The ... set of recommendations that would allow biopharmaceutical ... (HCEI) with entities that make formulary and coverage decisions, ... the "value" of new medicines. The recommendations ... does not appear on the drug label, a prohibition ...
Breaking Medicine Technology:
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson ... Recently, he has implemented orthobiologic procedures as a method for treating his patients. ... the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons ...
(Date:6/24/2016)... Michigan (PRWEB) , ... June 24, 2016 , ... Those ... deal with these feelings, many turn to unhealthy avenues, such as drug or alcohol ... of Marne, Michigan, has released tools for healthy coping following a traumatic event. , ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced that ... chosen by their peers for this recognition are considered among the top 2 percent ... special honors as members of this year’s Legal Elite Hall of Fame: Miami ...
(Date:6/24/2016)... , ... June 24, 2016 , ... People across the ... Genome magazine’s Code Talker Award, an essay contest in which patients and their families ... to be presented at the 2016 National Society of Genetic Counselors (NSGC) Annual Education ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... actively feeding the Frederick area economy by obtaining investment capital for emerging technology ... past 2½ years that have already resulted in more than a million dollars ...
Breaking Medicine News(10 mins):