Eric Barnes[email protected]InterventionalCoronary CTA edges CMR in a tight raceCHICAGO - 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.November 30, 2009CTHigh-pitch DSCT offers speedy images equivalent to slow scansCHICAGO - High-pitch dual-source CT (DSCT) scans speed up scanning without harming image quality in most applications, say researchers from the Mayo Clinic in Rochester, MN.November 29, 2009CTSurveillance polyps show little growth at follow-upCHICAGO - A preliminary study from Italy adds weight to the argument that two- to three-year surveillance of 6- to 9-mm polyps doesn't unduly increase the risk of colorectal cancers. Diminutive polyps grow faster but present less cause for concern.November 29, 2009CTNew ACR guidelines overhaul VC practice, training standardsA major revamp of virtual colonoscopy practice guidelines has been published in a white paper by the American College of Radiology (ACR). The update, the first since the ACR Colon Cancer Committee's guidelines debuted in 2005, will affect virtually every aspect of VC practice, from insufflation to radiation dose to training.November 26, 2009CTCardiac CTA reduces mortality over the long haul, study showsA study that followed thousands of mostly symptomatic patients for eight years found that those who underwent coronary CT angiography (CTA) were far less likely to die than patients who received standard care.November 24, 2009InterventionalCAD takes on arteries with coronary stenosis detectionA new computer-aided-detection (CAD) application is showing great promise as a companion to coronary CT angiography, recording both high sensitivity and low numbers of false-positive marks, according to researchers from the Medical University of South Carolina.November 18, 2009Cardiac ImagingAuntMinnie.com Cardiac Imaging InsiderNovember 15, 2009CTElectrocardiogram pulsing, adaptive pitch cut coronary CTA doseEducational Exhibit | LL-PH4828-L09 | Lakeside CenterTwo important dose reduction techniques are illustrated in this exhibit: adaptive electrocardiogram-pulsing and adaptive pitch selection. The rationale and physics behind these techniques are discussed and, more important, illustrated with the aid of real-world examples and cases, according to CT physicist Marcel van Straten, Ph.D., from Friedrich-Alexander University Erlangen-Nuremberg in Germany.November 15, 2009CTASIR reconstruction cuts CT perfusion doseFriday, December 4 | 10:30 a.m.-10:40 a.m. | SST15-01 | Room S404ABWith the rise in CT perfusion for numerous diagnostic tasks -- like cerebral blood flow assessment and follow-up for cancer patients -- the higher radiation doses associated with perfusion can be troubling. But adaptive statistical iterative reconstruction (ASIR) technique can reap the benefits with lower radiation dose, according to this Friday morning presentation.November 15, 2009CTCoronary CTA software matches QCA for stenosis gradingThursday, December 3 | 11:50 a.m.-12:00 p.m. | SSQ03-09 | Room S530ABThe evaluation of coronary arteries in coronary CT angiography (CTA) is essentially a visual task, presenting the problem of subjectivity. Quantitative coronary angiography (QCA) was developed to sidestep this problem, becoming the gold standard for evaluating percentage of stenosis. Now software has been developed to quantify stenosis percentage in MDCT; this study aimed to evaluate its performance compared to QCA.November 15, 2009Previous PagePage 135 of 258Next PageTop StoriesDigital X-RayChest x-rays reveal atherosclerosis in patients undergoing amputationsLower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.MRI3D MRI technique helps plan treatment for pediatric heart conditionsWomens ImagingCould AI scoring help with managing DCIS?CTClinicians, beware: CT diagnostic accuracy varies by adnexal lesion typePractice ManagementRadiology coding update for 2026
