Eric Barnes[email protected]Nuclear MedicineJAMA: CCTA generates more interventions versus stress testingAn analysis of more than 300,000 Medicare patients being evaluated for heart disease found that those who received coronary CT angiography (CCTA) were more likely to go on to invasive cardiac procedures compared with those who received myocardial perfusion scintigraphy, according to results published in the November 16 Journal of the American Medical Association.November 14, 2011CTPediatric MRI not always safer than CTCT versus MRI -- the latter is the obvious choice for children because MRI does not use ionizing radiation, right? Actually, CT can be safer depending on the exam, say researchers eyeing the comparative risks of the modalities.November 14, 2011CTAuntMinnie.com CT InsiderNovember 9, 2011CTRoad to RSNA 2011: CT PreviewWide-area detectors, dual-source scanners, fast kV switching, and new contrast protocols that leverage CT's growing spatial and temporal resolution are important sides of the CT picture that will be showcased in presentations at the RSNA 2011 meeting in Chicago.November 9, 2011CTMobile cloud powers CAD for colon cancer screeningEducational Exhibit | LL-INE1216 | Lakeside Learning CenterA lunchtime continuing medical education session will be held this year to demonstrate a high-resolution mobile display of virtual colonoscopy powered by a cloud-based computer-aided detection (CAD) system.November 9, 2011CTPericolonic fat associated with adenomatous polypsFriday, December 2 | 10:30 a.m.-10:40 a.m. | SST04-01 | Room E350Patients with adenomatous colorectal polyps have higher fat volume fractions than patients without these polyps, according to a multipurpose virtual colonoscopy scan. The pairing sounds obvious enough, but researchers from Bethesda, MD, believe the results suggest that pericolonic fat itself may be the culprit behind adenoma growth.November 9, 2011CTHeavy-metal contrast cuts radiation doseWednesday, November 30 | 3:10 p.m.-3:20 p.m. | SSM20-02 | Room S404ABCompared with some heavy metals, iodine and barium simply don't produce enough contrast in CT to optimize dose, according to medical physicist Tristan Nowak, from the Institute of Medical Physics at Friedrich-Alexander-University Erlangen-Nuremberg. In a study to be presented Wednesday afternoon, his group tested several heavy metals in phantoms in the search for an eventual replacement.November 9, 2011CT2-hour prep may ease VC scheduling after optical colonoscopyTuesday, November 29 | 3:40 p.m.-3:50 p.m. | SSJ08-05 | Room E450BWhen a conventional colonoscopy fails to reach the cecum, virtual colonoscopy is a logical choice to complete the screening. But it can be difficult to refer these patients to VC fast enough to avoid a second bowel cleaning. Fortunately, a two-hour prep might be effective enough to spare the patient an extra trip to the clinic, according to a study being presented in a Tuesday session on VC techniques.November 9, 2011CTCT perfusion quantifies neoangiogenesis in HCC tumorsTuesday, November 29 | 11:10 a.m.-11:20 a.m. | SSG05-05 | Room E353CResearchers in Italy believe that CT perfusion can noninvasively quantify tumor blood supply in hepatocellular carcinoma (HCC) that relates to tumor neoangiogenesis, a process that is essential for tumor growth. The knowledge will help doctors better assess the disease and strategize treatment options, they said.November 9, 2011CTMyocardial perfusion stress CT moves to clinical useTuesday, November 29 | 10:50 a.m.-11:00 a.m. | SSG02-03 | Room S503ABCardiac CT is ready for the comprehensive assessment of coronary artery disease in routine clinical use, say researchers from the Medical University of South Carolina. In the group's initial experience applying myocardial perfusion CT to a clinical population with acute chest pain, the technique detected myocardial perfusion defects just as well as the reference standards, MRI and SPECT.November 9, 2011Previous PagePage 94 of 258Next PageTop StoriesMRIMRI may help guide brachial plexus surgeryMRI-based volumetric analysis of paraspinal muscles can distinguish the severity of traumatic brachial plexus injury.AIShould hospitals pursue local domain LLM adaptation for radiology reports?Womens ImagingMRI model predicts breast tumor shrinkage patternsMRICheck for middle neck involvement for nasopharyngeal cancer prognosisMolecular ImagingPET links brain receptor to emotional numbing in PTSD