Eric Barnes[email protected]CTPerfusion CT protocols vary, but all require dose/quality tradeoffsThe growing field of perfusion CT imaging has great potential to offer diagnostic information that other imaging methods cannot -- in tasks such as distinguishing cancer from vascular malformations, comparing perfusion patterns in two kidneys, or assessing blood flow to different parts of the brain.November 12, 2009CTVC screening maintains performance in Medicare populationScreening with virtual colonoscopy is as useful for older individuals as it is in the general population 50 years and older. Although Medicare-aged screening participants present with higher rates of extracolonic lesions, advanced adenoma findings are remarkably similar between the two groups, according to researchers at the University of Wisconsin.November 8, 2009Image ProcessingAutomated segmentation could improve fetal heart echoA new method of segmenting the fetal heart with echocardiography could improve the evaluation of congenital heart defects compared to the time-consuming manual segmentation in use today, according to researchers from the U.K.November 5, 2009CTAuntMinnie.com CT InsiderNovember 4, 2009Nuclear MedicineCMS cuts SPECT MPI payments 36%, sets CCTA ratesCardiac imaging is scheduled for reimbursement cuts -- including a 36% hack at SPECT myocardial perfusion imaging (MPI) -- under the final Medicare Physician Fee Schedule for 2010. On the plus side, the U.S. Centers for Medicare and Medicaid Services (CMS) also published base rates for coronary CT angiography (CCTA) and increased cardiac PET reimbursement by about 17%.November 4, 2009CTCT lung CAD helps readers differentlyReaders of varying skill levels perform significantly better when they use computer-aided detection (CAD) to find lung nodules on CT scans, according to a new study. But while CAD tends to equalize performance among readers of varying skills, readers perform differently based on experience levels, presentation order of candidate nodules, and total time spent reading a case.November 3, 2009CTAuntMinnie.com Virtual Colonoscopy InsiderNovember 2, 2009CTMeta-analysis reveals paucity of advanced neoplasia in small polypsThe prevalence of advanced neoplasia in subcentimeter polyps is extremely rare, according to a new meta-analysis of virtual colonoscopy data from more than 20,000 patients. As a result, the study authors believe that it's unnecessary to incur the costs and risks associated with resecting diminutive colorectal lesions detected at VC.November 1, 2009CTVC CAD nabs undetected polyps in jumbo screening studyRESTON, VA - The largest trial to date using computer-aided detection (CAD) to analyze virtual colonoscopy images indicates that CAD can find polyps that a panel of expert readers missed in asymptomatic subjects, according to a presentation at this week's International Symposium on Virtual Colonoscopy.October 28, 2009CTHow 2009 went right and wrong: VC's own worst enemiesRESTON, VA - Opening this week's International Symposium on Virtual Colonoscopy, course director Dr. Matthew Barish and others assessed the development of VC over the past decade, finding fault with radiologists, gastroenterologists, and the government, while looking at what went right for VC as well.October 27, 2009Previous PagePage 139 of 258Next PageTop StoriesUltrasoundCEUS outshines color Doppler imaging for indeterminate kidney lesionsCEUS outperformed color Doppler ultrasound in a study focusing on indeterminate kidney lesions.Womens ImagingWomen's Imaging MinnieCast, Episode 2: Risk-based vs. annual mammography screening, part 1Digital X-RayChest x-rays reveal atherosclerosis in patients undergoing amputationsMRI3D MRI technique helps plan treatment for pediatric heart conditionsWomens ImagingCould AI scoring help with managing DCIS?
