Eric Barnes[email protected]CTCoronary calcium CT scans motivate lifestyle changesA new study in the Journal of the American College of Cardiology found that patients with positive results on coronary artery calcium CT scans made important lifestyle changes that led to lower risk profiles for cardiac events four years later.March 22, 2011CTJapan crisis spotlights radiation protection drugsAmericans worried about the nuclear crisis in Japan have cleared store shelves of potassium iodide as they seek protection from radiation-laced fallout. The frenzy has also drawn attention to specialized drugs and nutritional formulas designed to protect individuals from environmental radiation -- and prevent harm from medical imaging and radiation therapy.March 21, 2011CTFast 320-row CT produces lower dose in pancreasThe image quality of contrast-enhanced CT scans of the pancreas was pretty much equivalent between fast 320-detector-row contrast-enhanced scans of the pancreas and 64-detector-row scans, according to a new study in Radiology. But there were some differences, notably far lower radiation doses with the 320-row scans.March 17, 2011CTVC study turns in high positive predictive valueA new study shows that virtual colonoscopy delivers a high positive predictive value for the identification of patients with clinically significant polyps, reinforcing the results of earlier studies concluding that VC can predict the need for conventional colonoscopy and polypectomy with few false-positive detections.March 15, 2011CTComputer-assisted markup more accurate for lung nodulesWhat's the best way to measure lung nodules at follow-up CT? Researchers from Weill Cornell Medical College say that computer-assisted markup shows less variability than manual drawing of the nodule; accuracy is also aided by comparing more recent scans with prior scans side by side.March 9, 20112011Study recommends skipping gonad shields in pediatric x-raysVIENNA - Gonad shielding is more trouble than it's worth, concluded Dutch researchers in a study of more than 700 children undergoing x-ray exams of the abdomen and pelvis. Shield placement is rarely correct, they said, and crucial anatomy ends up being covered even when performed correctly, especially in girls.March 6, 2011CTHigh-pitch chest CT captures fast-moving babiesVIENNA - High-pitch chest CT is a robust technique that provides high-quality thoracic images of babies in motion -- quickly, without sedation, and at low radiation doses -- according to a study presented at the European Congress of Radiology.March 5, 2011CTRadiographer's role grows in planning, image interpretationVIENNA - As radiographers in Europe increasingly take over tasks once reserved for radiologists, investigators continue to find that their skills are often equivalent to if not better than those of their physician partners, according to two radiography presentations Saturday at the European Congress of Radiology.March 4, 2011CTHigh-pitch DSCTA often repeated, but dose still lowerVIENNA - Nearly one in five coronary CT angiography scans acquired with an emerging high-pitch dual-source CT angiography (DSCTA) protocol needs to be repeated. But the low-dose acquisitions possible mean even repeated scans have lower overall doses than comparable 64-detector-row CTA scans, researchers reported at the European Congress of Radiology.March 3, 2011InterventionalCT limited for detection of subtle aortic tearsVIENNA - Even with electrocardiographic gating, CT angiography cannot confidently visualize subtle aortic tears of the ascending aorta. Transesophageal echocardiography may be a better option in some patients, according to a presentation Thursday at the European Congress of Radiology.March 2, 2011Previous PagePage 106 of 258Next PageTop StoriesMolecular ImagingPET links brain receptor to emotional numbing in PTSDTo date, only a single study has investigated CB1R availability in humans exposed to trauma.Womens ImagingCEM, DBT show promise for preoperative breast cancer stagingMRIMRI illumines how the brain maintains 'representation' of phantom limbsDigital X-Ray3D DEXA reveals lower bone density in diabetes patientsMRIGadolinium in ... beer?
