Gastrointestinal Radiology: Page 125

Colon CAD helps expert readers

In a study by researchers from London, virtual colonoscopy computer-aided detection (CAD) software beat the experts in detecting medium-sized polyps, though the system is designed for interaction with radiologists rather than competition.

March 15, 2006

Telltale barium coating could help VC find risky polyps

Virtual colonoscopy practitioners have a new and potentially useful way to identify colorectal polyps at increased risk of harboring high-grade dysplasia or cancer, a study from the National Institutes of Health (NIH) suggests.

March 14, 2006

ev3 stent gets FDA, CE stent nods for Protege

By AuntMinnie.com staff writers

Interventional device firm ev3 of Plymouth, MN, has received Food and Drug Administration 510(k) clearance to market its Protege EverFlex self-expanding stent system for the palliative treatment of malignant neoplasms in the biliary tree.

March 9, 2006

Guidant launches new stent

By AuntMinnie.com staff writers

Interventional device developer Guidant has launched the RX HercuLink Elite biliary stent system in the U.S., following Food and Drug Administration 510(k) clearance.

March 9, 2006

VC shows advantage for recurrent rectal cancer surveillance

A recently published study that followed 434 rectal cancer patients with virtual colonoscopy and colonoscopy found that VC was 100% sensitive for detecting recurrent cancer, catching a few cases that were negative or indeterminate on optical colonoscopy, but also producing a few indeterminate results that were in fact negative.

March 7, 2006

VC effective in postpolypectomy follow-up

VIENNA - Patients who have undergone colonoscopy and polypectomy have an increased risk of recurrent disease, and therefore need more frequent follow-up colon exams. But they're not always willing to have optical colonoscopy again, and in these cases, many virtual colonoscopy providers believe their alternative makes sense. New studies from Italy and Taiwan suggest they may be right.

March 3, 2006

Appendectomy history can lead to false-positive VC

A recent American Journal of Roentgenology paper reveals the possibility of mistaking an appendiceal stump for a clinically significant colorectal polyp. If misdiagnosed on virtual colonoscopy, the patient could be sent for same-day colonoscopy, adding needless risk and costs to colorectal cancer screening.

February 28, 2006

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Siemens, Haifu collaborate

By AuntMinnie.com staff writers

Siemens Medical Solutions and Chongqing Haifu Technology of Chongqing, China, have partnered to develop an MRI-guided high-intensity focused ultrasound (HIFU) therapy system.

February 27, 2006

Newer MRA techniques suitable for renal artery stenosis detection

By Edward Susman

Researchers at the International Symposium on Endovascular Therapy (ISET) have backed contrast-enhanced MR angiography (MRA) for diagnosing renal artery stenosis, which they say could be a good alternative to more invasive modalities.

February 21, 2006

Medicare to pay for AAA screenings

By AuntMinnie.com staff writers

The Deficit Reduction Act of 2005 wasn't a complete disaster for radiology. Tucked into the legislation is a provision that establishes Medicare reimbursement for ultrasound screening of abdominal aortic aneurysms (AAA).

February 12, 2006

Radiologists eye VC practice post-ACRIN

Screening for the largest virtual colonoscopy trial to date won't be finished for months, but researchers are already pondering how the National CT Colonography Trial results might alter the colon cancer screening landscape in the U.S.

February 9, 2006

Adverse events weigh on colonoscopy mortality equation

Does optical colonoscopy produce a mortality benefit? Dr. David Lieberman, chief of gastroenterology at Oregon Health and Science University in Portland, tackled the question at the recent American Society of Clinical Oncology's Gastrointestinal Cancers Symposium in San Francisco.

February 5, 2006

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