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.

RSS icon

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.

Breast MRI:How I Read It

Breast MRI has emerged as a powerful new tool in the fight against breast cancer. It has found wide acceptance in the past 10 years, and it appears to be one of the most rapidly growing medical studies. When breast MRI is combined with mammography and breast ultrasound, we are now able to find breast cancer at its earliest stages, when the disease

Siemens Gets FDA Nod For First Hybrid PET/MRI Scanner

Marking the debut of the first equipment to enable simultaneous whole-body acquisition of data from magnnetic resonance (MR) and positron emission tomography (PET), Siemens Healthcare has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) for its Biograph mMR hybrid PET/MRI scanner.

Storage Management and Planning in the EMR Era

Health IT professionals have had their hands full in recent months, scrambling to understand how best to meet the provisions of meaningful use in order to capitalize on American Recovery and Reinvestment Act incentives—and, eventually, to avoid CMS payment penalties. One area affected by meaningful use that often goes unconsidered, however, is

Displaying 793 - 800 of 830

Around the web

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.

Cardiovascular Business
GE HealthCare moves PET/CT scanner production to United States

The all-in-one Omni Legend PET/CT scanner is now being manufactured in a new production facility in Waukesha, Wisconsin.