Gastrointestinal Radiology: Page 124

Rare venous malformations look like polyps on VC
By Eric Barnes
A colorectal cancer screening patient presented with multiple venous malformations that were initially mistaken for neoplastic polyps on virtual colonoscopy, according to a case report published in this month's American Journal of Roentgenology.
April 11, 2006
2006 04 11 15 53 06 706
VC CAD improves results for readers at all levels
By Eric Barnes
Virtual colonoscopy computer-aided detection (CAD) studies in recent years have shown promising results for the detection of colorectal polyps and cancer. But do CAD results actually improve reader performance? A group of radiologists in the U.K. sought to answer the question by assessing how VC CAD affects patient classification, polyp detection, and reading times. They found that VC CAD improved reader performance -- significantly and fairly evenly -- at all levels.
April 6, 2006
2006 03 31 13 34 08 706
3-tesla MR shows promise for abdominal, pelvic imaging
By Jonathan S. Batchelor
PHOENIX - Three-tesla MRI offers improved signal-to-noise and contrast-to-noise ratios compared with 1.5-tesla for body imaging, according to a presentation at the 2006 Society of Computed Body Tomography and Magnetic Resonance (SCBT/MR) meeting. However, several issues such as cost, weight, safety, and modified imaging protocols may mitigate these advantages.
April 3, 2006
CEUS aids differentiation of small liver lesions
By Erik L. Ridley
Contrast-enhanced ultrasound (CEUS) can help diagnose indeterminate small hepatic lesions, according to researchers from the University of California, San Diego. They conducted a study to assess CEUS' accuracy and role in diagnosing small lesions that were indeterminate on CT and/or MRI, and presented their findings at the recent American Institute of Ultrasound in Medicine (AIUM) meeting.
April 2, 2006
ART launches preclinical imaging agents
By AuntMinnie.com staff writers
Canadian optical molecular imaging developer ART Advanced Research Technologies launched a new line of biomarker products, called Fenestra, at the American Association for Cancer Research (AACR) meeting in Washington, DC, this week.
March 30, 2006
CEUS outshines three-phase CT in assessing HCC TACE response
By Erik L. Ridley
Contrast-enhanced ultrasound (CEUS) is more sensitive than three-phase CT in depicting vascularity in hepatocellular carcinomas (HCCs) treated with transcatheter arterial chemoembolization (TACE), according to an article in the April 2006 Journal of Ultrasound in Medicine.
March 30, 2006
Radiation experiment demonstrates long-term damage to normal tissue
By Shalmali Pal
By selectively irradiating blood vessels, Massachusetts Institute of Technology (MIT) researchers have ascertained at what point healthy tissue starts to degrade after radiation exposure. Their results have implications for radiation therapy and exposure, as well as for the long-term effects of both, the authors said.
March 30, 2006
Medtronic gets FDA nod for AAA stent system
By AuntMinnie.com staff writers
Medical device developer Medtronic has received U.S. Food and Drug Administration clearance for its AneuRx AAAdvantage abdominal aortic aneurysm (AAA) stent graft with Xcelerant delivery system.
March 27, 2006
Tagged VC succeeds where colonoscopy fails in elderly
By Eric Barnes
Even in expert hands, optical colonoscopy fails to reach the cecum in at least 10% to 15% of patients, with a progressively greater failure rate among elderly and frail patients. A new study from Italy suggests that virtual colonoscopy with fluid and fecal tagging may be an ideal replacement. In patients with failed conventional colonoscopy, VC identified several cancers and earned high marks for patient comfort.
March 27, 2006
2006 03 27 15 10 11 706
The more CT detectors, the more MPRs help
By Eric Barnes
Radiologists know the value of multiplanar reconstructions (MPRs) for finding what's wrong. In the abdomen, cross-referencing coronal images with the axials can sometimes reveal subtle pathologies that might otherwise be missed. But some might be surprised to learn that the more detectors rows in the scanner, the more useful MPRs are to the diagnosis.
March 21, 2006
2006 03 22 05 37 25 706
Salix gets FDA OsmoPrep OK
By AuntMinnie.com staff writers
Salix Pharmaceuticals of Raleigh, NC, said that it has received U.S. Food and Drug Administration marketing approval for its OsmoPrep Tablets.
March 19, 2006
X-ray's role debated in systematic diagnosis of pediatric constipation
By Shalmali Pal
In 1999 Dr. Susan Leech and colleagues at John Radcliffe Hospital in Oxford, U.K., published an x-ray scoring system for assessing childhood defecation disorders. Six years later, is the Leech system still useful? Yes and no, according to two research groups from the Netherlands. One group gave the Leech method their vote of confidence, while the other found it to be of limited value.
March 16, 2006
2006 03 15 11 09 38 706
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