FOBT-screened cohort yields too many positives for VC July 28, 2008 -- Virtual colonoscopy (VC) seems a promising way to sort through patients with a positive fecal occult blood test (FOBT), considering the latter's demonstrated low sensitivity and high false-positive rate. But in a screening cohort from the Netherlands, polyps and cancer were so common in FOBT patients that VC hardly seemed worth it.
Smoking during radiation therapy reduces treatment benefit July 16, 2008 -- Patients with non-small cell lung cancer who smoke during the weeks they receive radiation therapy may reduce their overall benefit of treatment. Smoking has a significant negative effect as measured by several factors for assessing radiation therapy's effectiveness, according to study results.
U.S. military to adopt voice recognition technology worldwide July 15, 2008 -- Following the Bush administration's directive for creating a national electronic medical record (EMR) network, the U.S. Department of Defense has initiated a similar effort to have an EMR system in place by 2011 in its Military Health System. The new military EMR will involve the wide-scale deployment of voice recognition software across all military treatment facilities.
New algorithm sharpens coronary artery images July 14, 2008 -- Researchers at the recent Computer Assisted Radiology and Surgery (CARS) meeting in Barcelona, Spain, presented new work that aims to simplify the difficult task of evaluating coronary artery images.
CARS report: Fuzzy theory yields sharper CTA images June 27, 2008 -- BARCELONA - Coronary CT angiography isn't as easy to perform as it could be, according to Chunliang Wang, who discussed the problem of hidden coronary arteries and introduced a novel segmentation method that might make them easier to examine at the 2008 Computer Assisted Radiology and Surgery (CARS) meeting.
CARS report: CAD prompts range of behaviors in readers June 26, 2008 -- BARCELONA - How computer-aided detection (CAD) software works in theory is one thing, and how it functions in practice is another, as radiologists who use CAD have come to appreciate. But the ways in which readers react to CAD prompts, a subject that has received scant attention, has important implications for both CAD design and reader training.
Radiographers perform VC with CAD -- and controversy June 24, 2008 -- A new study from London put radiographers in charge of reading virtual colonoscopy (VC) data, with their performance monitored with computer-aided detection as a second reader. The study raises the question of whether it's inappropriate -- or even dangerous -- to allow nonradiologists to screen with VC.