Gastrointestinal Radiology: Page 33

US replaces x-ray for diagnosing childhood constipation

By Cynthia E. Keen

British pediatricians at a London children's hospital are using ultrasound to assess the severity of constipation in children. They have found that ultrasound is a good substitute for abdominal x-ray, with its radiation exposure, or a digital rectal examination, a procedure that children find unpleasant and disturbing.

April 26, 2009

VC CAD plus 3D improves sensitivity for novice readers

Computer-aided detection (CAD) with 3D viewing improves sensitivity for polyp detection among less experienced readers, and may also speed up reading times and reduce false-positive detections. On the other hand, the performance of experienced readers did not improve significantly with CAD use, researchers from the University of Rome concluded.

April 20, 2009

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CT colonography may yet challenge colonoscopy

By Reuters Health

NEW YORK (Reuters Health), Apr 16 - Although CT colonography is a promising technique that has good sensitivity for detecting larger colon polyps and is less invasive than colonoscopy, it does not appear to be cost-effective for average-risk colorectal cancer screening. However, used in the right circumstances, the CT technique could prove to be economically viable, according to U.S. and Dutch researchers.

April 15, 2009

Adding chest CT to VC not cost-effective, study finds

Adding a chest CT scan to screening virtual colonoscopy isn't cost-effective in a cohort of average-risk patients, a new model-based analysis concluded. Although the additional anatomic coverage increased the clinical efficiency of CT-based screening, the combined test would not detect enough serious pathology to cover the costs of detection and follow-up of disease.

April 6, 2009

Fecal occult blood screening may help reduce colorectal cancer mortality

By Reuters Health

NEW YORK (Reuters Health), Apr 6 - Pilot studies indicate that a population-based approach to guaiac fecal occult blood testing (FOBT) appears likely to reduce colorectal cancer mortality, Scottish researchers report in the April issue of Gut.

April 5, 2009

Virtual colonoscopy CAD finds most cancers

A computer-aided detection (CAD) algorithm designed to find polypoid lesions of the colon also does fairly well at finding frank cancers, researchers from the U.K. concluded. But sensitivity varies depending on the system settings and the quality of the prep.

April 2, 2009

Digital tomo works well for some kidney, ureteral stones

A new study by Belgian researchers indicates that digital tomosynthesis could be useful for assessing ureteral and kidney stones, particularly for screening patients prior to CT. But the digital radiography technique has different levels of accuracy depending on the location and size of stones.

April 1, 2009

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Automated CT volumetry of lymph nodes gauges treatment response

Cancer patients who respond to neoadjuvant therapy have a better prognosis than nonresponders, of course, but with the exception of FDG-PET, reductions in the size of tumors treated with chemotherapy or radiation have been difficult to gauge using imaging modalities that are capable of delineating the anatomy.

March 26, 2009

VC/AAA screening combo cost-effective in older adults

A new analytic model has found that virtual colonoscopy is a highly cost-effective colon cancer screening method for older adults in the Medicare population, especially when combined with screening for abdominal aortic aneurysm (AAA), a test performed using the same CT dataset at little additional cost.

March 25, 2009

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Cancer cure rates on the rise in Europe: study

By Reuters Health

LONDON (Reuters), Mar 24 - More Europeans are beating cancer, perhaps due to more widespread screening and earlier diagnosis, according to a study published on Tuesday.

March 23, 2009

Colonoscopy seen as reducing CRC mortality in Germany

By AuntMinnieEurope.com staff writers

A colonoscopy screening program is expected to have a powerful impact on colorectal cancer (CRC) deaths in Germany, despite a low rate of participation among eligible participants, according to the first published results of an eight-year study of nearly 2 million screened individuals.

March 22, 2009

Study: Endovascular repair can come first for AAA

By AuntMinnieEurope.com staff writers

Researchers of a new U.K. study recommend endovascular or endograft repair as a first-line treatment for abdominal aortic aneurysm (AAA), given that the low reintervention rates are comparable to those reported for open surgical repair.

March 11, 2009

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