Gastrointestinal Radiology: Page 82

Filtering software boosts CT image quality, lowers dose
By Eric Barnes
Adaptive image filtering can improve CT image quality and reduce image noise, enabling radiologists to lower radiation dose, concluded a study presented at this week's American Roentgen Ray Society meeting in San Diego.
May 6, 2010
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5-year C-RADS analysis shows stable VC screening results
By Eric Barnes
SAN DIEGO - In what is likely the largest screening population ever classified by virtual colonoscopy's standardized reporting system, C-RADS, researchers found stable results over five years in the single-center program, along with a large majority of patients who were able to avoid invasive colonoscopy.
May 5, 2010
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VC shows high diagnostic yield after failed colonoscopy
By Eric Barnes
Virtual colonoscopy finds significant pathology in patients referred after failed colonoscopy, according to a study presented at the Digestive Disease Week meeting in New Orleans. The results show the need for a complete colon exam and highlight VC's strengths in detecting extracolonic abnormalities.
May 5, 2010
FDG-PET/CT detects recurrence of colorectal cancer
By Wayne Forrest
FDG-PET/CT has a "significant role" in characterizing suspected colorectal cancer recurrence at an early stage, according to a study presented by U.K. researchers at the American Roentgen Ray Society meeting this week in San Diego.
May 4, 2010
Young adults face higher CT radiation risk than seniors
By Cynthia E. Keen
Age has a lot to do with the estimated radiation risk of developing cancer as a result of having an abdominal or pelvic CT scan. Senior citizens have half the risk of young adults, a research team told attendees at the American Roentgen Ray Society annual meeting being held in San Diego this week.
May 3, 2010
Flexible sigmoidoscopy of dubious value after VC
By Eric Barnes
The yield of additional pathological findings was quite low in a group of symptomatic patients who underwent flexible sigmoidoscopy after virtual colonoscopy screening, according to a poster presentation at this week's Digestive Disease Week meeting in New Orleans.
May 3, 2010
VC helps screen U.S. minorities
By AuntMinnie.com staff writers
Virtual colonoscopy is a useful colon screening exam in minority communities, particularly among individuals who might shy away from conventional colonoscopy, according to a poster study unveiled at the Digestive Disease Week meeting in New Orleans.
May 3, 2010
HDCT with ASIR recon sharpens low-dose abdominal images
By Eric Barnes
High-definition CT (HDCT) combined with adaptive statistical iterative reconstruction (ASIR) is a good way to diagnose abdominal conditions at very low radiation doses, according to researchers from Hong Kong.
May 3, 2010
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CT perfusion distinguishes HCC from other liver lesions
By Eric Barnes
Radiologists in China are getting more traction out of their CT liver protocols with the use of perfusion dual-source CT (DSCT) exams, taking a bite out of MRI's traditional superiority in the process. DSCT is showing that it can often do a better job in differentially diagnosing hepatocellular carcinoma (HCC), liver metastases, and cavernous hemangioma in the clinical setting.
April 28, 2010
CT attenuation improves sensitivity for bowel wall obstruction
By Eric Barnes
A technique that analyzes the attenuation of small regions of interest in the bowel wall at CT can improve the diagnosis of suspected bowel wall ischemia, a condition associated with substantial morbidity and mortality, according to a study in the April American Journal of Roentgenology.
April 18, 2010
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3T MRA protocol has value but falls short in abdominal vasculature
By Wayne Forrest
A time-resolved 3-tesla MR angiography (MRA) technique that uses less contrast dose than conventional high-resolution MRI has some advantages in the abdominal aorta, but its lower signal-to-noise ratio means it probably won't supplant conventional MRA, according to a study in the May Academic Radiology.
April 18, 2010
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Small colon polyps on VC suggest presence of larger lesions
By Eric Barnes
Individuals with several diminutive colon polyps on virtual colonoscopy studies are far more likely than other screening subjects to also have a larger colorectal lesion, say researchers from the University of Munich in Germany.
April 15, 2010
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