Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is the gold standard imaging modality for soft tissues. It produces detail cross-sectional images of soft tissue and bone anatomy, including muscles, tendons, ligaments, brain and organs, without the use of ionizing radiation. In addition to orthopedic imaging, MRI is also used for heart, brain and breast. MRI uses gadolinium contrast in many exams to highlight tissues and blood vessels, which enhances images and offers better diagnostic quality. It can also be used in conjunction with PET scans. How does MRI work? MR creates images by using powerful magnets to polarize hydrogen atoms in water (the body is made of of more than 80% water) so they face in one direction. A radiofrequency pulse is then used to ping these atoms, causing them to wobble, or resonate. The MRI coils detect this and computers can assemble images from the signals. Basic MRI scans will focus on the resonance of fat and water in two different sequences, which highlight and contrast different features in the anatomy.

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Research Finds Self-Referral Likely Driving Up Use of MRIs in One Community

Duke University researchers point to physician self-referral as possibly driving up utilization among imaging facilities in one particular community.

FDA Workshop Covers MRI Safety Enhancements

MRI safety was the topic of a two-day public workshop held earlier this week by the Food and Drug Administration (FDA) on its White Oak campus in Silver Spring, Maryland.

Maximizing Opportunities for Patient Care: MRI of Reston

Sponsored by Hitachi Healthcare Americas

Reston Radiology Consultants (Ashburn, Virginia) is a hospital-based imaging practice in business for over twenty years that includes several outpatient centers, including MRI of Reston, where four systems carry an imaging load that reaches a combined average of 24,000 studies annually. This suggests a fair amount of volume seen at that lone

GE Healthcare Gets FDA OK on New MR System

GE Healthcare has received FDA clearance of the Discovery* MR750w wide bore 3.0 Tesla MR system with GEM (Geometry Embracing Method) Suite of Coils.

Diffusion-Weighted MRI Trumps PET-CT in Lung Lesion Analysis, Study Says

Diffusion-weighted MRI may be a better determinant than PET-CT of whether lung lesions are cancerous or benign, according to a study conducted by Belgian researchers and presented yesterday at the European Respiratory Society’s Annual Congress in Amsterdam, The Netherlands. The modality could then be used to prevent unnecessary surgery by enabling

FDA Workshop to Cover MRI Safety

MRI safety will be the focus of a two-day public workshop to be held by the U.S. Food and Drug Administration (FDA) on October 25 and October 26.

Toshiba MRI Scanner Garners FDA Approval

Toshiba today announced that it has received Food and Drug Administration (FDA) clearance for its Vantage Titan™ 3T open-bore MRI scanner.

Varian's Aria Receives ONC-ATCB EMR Certification

Varian Medical Systems (NYSE: VAR) of Palo Alto. Calif. yesterday announced that its ARIA® software for electronic medical records (EMR) and clinical practice management in radiation oncology has been certified for clinics that can now use it to qualify for federal funding under the U.S.HITECH Act.

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