Ultrasound elastography characterizes fibrosis severity
January 6, 2010 -- A Spanish research team has found that ultrasound elastography can reliably differentiate between rapid or slow fibrosis in liver transplant patients, paving the way for earlier identification of patients at risk of hepatitis C recurrence.
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.
MRI shows age- and gender-based differences in myocardial motion
December 18, 2009 -- People who suspect that men's and women's hearts march to different drummers now have proof from cardiac MRI. Myocardial motion is strongly influenced by gender as well as age, according to researchers from Freiburg, Germany.
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.
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.
Contrast dose halved in coronary CTA
December 2, 2009 -- CHICAGO - Contrast doses for CT angiography (CTA) are too high, but they can be lowered substantially with the right equipment and careful attention to technique, according to researchers from Charité University Medical School in Berlin.
Coronary CTA edges CMR in a tight race
December 1, 2009 -- CHICAGO - In a head-to-head comparison of two closely watched modalities, low-dose dual-source coronary CT angiography (CTA) outperformed cardiac MR (CMR) in sensitivity, specificity, and negative predictive value. But 1.5-tesla CMR countered with better specificity and positive predictive value.
Scientific poster digital format offers potential to transform medium
November 30, 2009 -- CHICAGO - Displaying scientific posters in digital format at this year's RSNA meeting allows authors not only to convey facts, graphs, and photos, but also to incorporate some interactive functionality. Onsite digital displays offer huge potential to educate readers in ways that even the best developed paper poster cannot.
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