MRI: Page 497

AuntMinnieTV: Cardiac MRI detects heart changes in older athletes

February 1, 2007

IMV report: MRI market growing

By AuntMinnie.com staff writers

An estimated 26.6 million MRI procedures were performed at 7,225 U.S. sites in 2006, up 10% compared with the 24.2 million procedures in 2003, according to a report recently issued by market research and consulting firm IMV Medical Information Division.

January 31, 2007

MRI of cardiac devices OK, but requires following strict guidelines

By Shalmali Pal

Two new papers in the Journal of Cardiovascular Magnetic Resonance offer advice on using MRI in patients with pacemakers and implantable cardiac defibrillators. Electrophysiologic and magnet-related issues that must be considered include magnetic field interactions, MRI-related heating, and functional changes, said the authors from the University of Southern California and other Los Angeles-based institutions.

January 29, 2007

Radial sampling in coronary MR shows vulnerable nonstenosed vessels

Coronary vessel wall imaging is a promising way to depict outward blood vessel modeling when luminal stenosis is absent, potentially improving doctors' ability to evaluate blood vessels with an elevated risk of plaque rupture. A new study from Germany shows that radial k-space sampling is better than Cartesian sampling for examining such vessels in 3D turbo field-echo MRI sequences.

January 28, 2007

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MRI risk isn't standing still -- are you?

MRI magnet technology marches steadily forward, improving every year. As the technology advances, we find new clinical applications for MRI. Unfortunately, many facilities are frozen testaments to the safety needs of years past. MRI architectural consultant Tobias Gilk discusses the changes that make re-evaluating the safety provisions of your MRI facility so vitally important to your patients, staff, and equipment.

January 28, 2007

MRI should be preferred test for suspected acute stroke

By Shalmali Pal

MRI should replace CT as the first-line test for accurate diagnosis of suspected acute stroke, according to a study published today in the Lancet. The authors found that MRI was superior to CT for diagnosing ischemic stroke, as well as acute and chronic hemorrhage. While cost is an issue with MRI, its greater diagnostic accuracy would justify the extra expense, they said.

January 25, 2007

Give a little bit! Give a little bit of your temporal cortex to me

By Shalmali Pal

When it comes to being charitable, Bill and Melinda Gates, Oprah, and Brangelina may have more in common than just open wallets. A recent fMRI study indicates that a specific region of the brain is linked to altruism and empathy. Interestingly enough, this particular region is not associated with the neurological areas that are responsible for higher functioning.

January 25, 2007

Illinois AG's lawsuit may chill equipment leasing deals

Legal and imaging industry experts agreed that a whistleblower lawsuit against several Chicago-area imaging centers could spur other states to investigate a business practice that is controversial, yet common, among radiologists and referring physicians.

January 23, 2007

From staging to lymph node status: Studies look to refine cervical cancer diagnosis, treatment

By Shalmali Pal

Several new studies examined the roles of imaging and radiotherapy for cervical cancer staging and treatment. Canadian researchers sought a connection between interstitial fluid pressure and MR-derived kinetic-modeling parameters, while U.S. investigators in a national trial compared CT to MRI for presurgical assessment. A third study in Italy scrutinized lymph node involvement and preoperative chemoradiation.

January 22, 2007

Tumor regrowth generally calls for second UAE procedure

By Shalmali Pal

Incomplete tumor infarction is the main reason that some patients undergo uterine artery embolization (UAE) a second time, according to a study that looked at the indications and technical reasons for another UAE procedure. In addition, many of these "repeat customers" will require ovarian artery embolization (OAE) as well.

January 22, 2007

MR arthrography depicts tears, instability in triangular fibrocartilage complex

By Shalmali Pal

The triangular fibrocartilage complex (TFCC) is the main stabilizer of the distal radioulnar joint, and when injuries occur in the form of tears, the latter will influence imaging outcome. But these tears may go unseen on traditional MRI and/or arthroscopy. Several studies assessed the usefulness of MR arthrography in peripheral tears and in cases of carpal instability.

January 18, 2007

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3mensio enters surgical visualization market

By AuntMinnie.com staff writers

Advanced visualization developer 3mensio Medical Imaging has signed a contract with the University Medical Center Utrecht in the Netherlands for the development and delivery of a new surgical visualization product, 3surgery.

January 17, 2007

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