Colonoscopy does not reduce right-sided advanced neoplasms
December 31, 2009 -- NEW YORK (Reuters Health), Dec 31 - Colonoscopy is more protective against advanced neoplasms in the left colon and rectum than in the right colon, results of a German study indicate. The findings were reported in the January 20 Journal of the National Cancer Institute.
Patients with peripheral arterial disease may need cardiac imaging
December 30, 2009 -- As many as one in five patients being treated for peripheral arterial disease have concurrent -- but silent -- asymptomatic coronary artery disease that's severe enough to require invasive procedures, according to a study presented at the RSNA meeting earlier this month.
VC CAD aids experts in detecting intermediate polyps
December 28, 2009 -- Computer-aided detection (CAD) can improve the performance of experienced radiologists in detecting intermediate-sized (6- to 9-mm) polyps, but it doesn't help find larger lesions, said researchers from Italy in results presented at the RSNA meeting earlier this month.
Lesion size and morphology at VC good predictors of histology
December 22, 2009 -- Size and morphology are good predictors of whether a colorectal lesion harbors advanced histology and needs to be removed, according to a new multicenter study from Italy. The results suggest that polyps of the same size detected at virtual colonoscopy could be classified and managed differently based on their morphology.
High-resolution CT reveals bronchial wall changes in asthma
December 22, 2009 -- NEW YORK (Reuters Health), Dec 22 - In most patients with severe asthma, high-resolution computed tomography (HRCT) reveals airway wall thickening and other changes not otherwise detectable, U.K. researchers report in the December issue of Chest.
CAD catches most flat polyps on virtual colonoscopy
December 16, 2009 -- Computer-aided detection (CAD) is sensitive for all but the flattest of flat colorectal lesions, even in minimally prepped patients, according to a new study from Italy. Using CAD, radiologists significantly improved their ability to detect the elusive polyps, which can harbor precancerous lesions.
CT calcium detection helps rule out obstructive coronary disease
December 15, 2009 -- NEW YORK (Reuters Health), Dec 15 - Non-enhanced CT for calcium detection is a reliable way to exclude obstructive coronary artery disease in patients with chest pain, researchers report in the December issue of the American Journal of Cardiology.
Caution urged on early mammography for high-risk women
December 11, 2009 -- Women at high risk of breast cancer should be cautious about undergoing mammography or other chest x-ray studies before the age of 30 due to the risk that radiation exposure might trigger cancer, according to research presented at last week's RSNA meeting in Chicago.
Tissue Doppler ratio predicts cardiac events in hypertensive patients
December 10, 2009 -- NEW YORK (Reuters Health), Dec 10 - Estimates of left atrial filling pressure, drawn from Doppler studies of the left ventricle, can strongly predict a first cardiac event in hypertensive patients, according to a report in the November 26 European Heart Journal.
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