Eric Barnes[email protected]CTCT often unjustified in the young; German pediatricians lack dose awarenessVIENNA - About a third of the CT scans performed in patients younger than 35 could be replaced by other modalities, concludes a Norwegian study presented Tuesday at the European Congress of Radiology. Meanwhile, a survey in the region of Essen, Germany, found that many pediatricians lack basic knowledge of radiation exposures for various chest indications.March 9, 2009CTNELSON lung cancer trial yields positive early resultsVIENNA - A first peek at the first results of the first large randomized lung cancer screening trial to near completion found that CT detected four-fifths of participants' lung cancers at stage I -- in time to effect a curative resection.March 8, 2009CTDiabetes renders coronary CTA more difficult, less successfulVIENNA - Diabetic patients have smaller vessels and larger coronary artery calcifications than nondiabetics, a combination that reduces the utility of coronary CT angiography (CTA), according to a new study from Italy.March 7, 2009Nuclear Medicine3D CT detection of perfusion defects mirrors SPECTVIENNA - Three-dimensional images from normal coronary CT angiography scans are highly sensitive for detecting fixed perfusion defects compared to myocardial SPECT. A special reconstruction technique performed with customized software does the job without the need for additional radiation or contrast.March 7, 2009CTMinimal prep VC nearly as sensitive, better toleratedVIENNA - A new study from the U.S. and Japan found that full-laxative and minimum-laxative virtual colonoscopy had equivalent sensitivities for detecting colorectal polyps 6 mm and larger, though specificity fell in the minimum-prep regimen. The patients were happy to skip the laxatives, however.March 6, 2009CT320-slice coronary CTA permits much lower contrast doseVIENNA - Single-beat scanning not only enables significant radiation dose reductions in coronary CT angiography (CTA), the short duration of the scan permits drastically lower contrast doses as well, at least in patients with regular heartbeats and no arrhythmias.March 5, 2009Digital X-RayOpacification at 320-row CT distinguishes normal, stenosed vesselsResearchers at Brigham and Women's Hospital in Boston have developed a new way to evaluate the coronary arteries, using a method based on the change in contrast opacification along the length of normal versus stenosed coronary arteries.March 5, 2009Nuclear MedicineNCRP report: CT drives massive increase in medical radiation doseThe U.S. population's exposure to ionizing radiation from medical procedures grew more than sevenfold between the early 1980s and 2006 -- an increase largely attributable to spectacular growth in CT use, according to a report released today by the National Council on Radiation Protection and Measurements (NCRP).March 2, 2009Cardiac ImagingAuntMinnie.com Cardiac Imaging InsiderMarch 1, 2009Digital X-RayProspective coronary CTA performs well in heavy patientsProspectively gated coronary CT angiography (CTA) performed well when scanning patients who were heavy or had high calcium scores, according to a study that tracked predictors of success with the low-dose technique. On the other hand, image quality dropped significantly when heart rates or heart rate variability was high.February 26, 2009Previous PagePage 149 of 258Next PageTop StoriesMRIRadiomics models based on pituitary MRI predict GHDThe model can help determine if growth hormone deficiency (GHD) is the cause of children's short stature.InterventionalEVT improves outcomes in stroke patients over age 90Practice ManagementMost patients confused when trying to read radiology reportsNuclear MedicineLLMs rapidly evolving in nuclear medicineSponsor ContentJoin Us!