Routine CT scanning is most cost-effective for minor head injuries March 7, 2008 -- VIENNA - Trying to be more selective about which patients receive a CT scan following minor head injury may sound like a good idea, but most of the major selective strategies are less cost-effective and riskier to patients than just routinely scanning all such patients. That's according to new data presented Friday at the 2008 European Congress of Radiology (ECR).
Dual-source CT edges into cardiac SPECT turf March 6, 2008 -- U.S. researchers will use this week's European Congress of Radiology in Vienna to present research that shows dual-source CT making inroads into cardiac functional imaging, an area currently dominated by SPECT. The study moves dual-source coronary CT angiography closer to the holy grail of cardiac imaging -- a test that performs both morphological and functional analysis in a single scan.
Hybrid lung segmentation software boosts performance February 13, 2008 -- A lung segmentation algorithm that combines the advantages of standard and more sophisticated approaches yields fast and accurate results, according to researchers from the University Medical Center Utrecht in the Netherlands.
Model finds polyp surveillance effective for cancer prevention January 21, 2008 -- The risk of developing colorectal cancer from polyps found at virtual colonoscopy but left unresected is not precisely known, and the practice of polyp surveillance is still controversial. But a new study concludes that the low likelihood of advanced neoplasia combined with the high cost of colonoscopy argue against the immediate removal of small lesions.
Coronary CTA study aims for lowest dose January 11, 2008 -- A study from Switzerland concludes that low-dose prospectively gated coronary CT angiography (CTA) is both feasible and promising, but not without wrinkles. Relying on prospectively triggered gating and some of the lowest radiation doses yet achieved for prospectively gated coronary CTA, the team reported that 95% of all coronary segments achieved diagnostic image quality, but image quality was very dependent on heart rate.
Gadolinium release linked to overall stability of contrast agent, may trigger NSF January 9, 2008 -- German researchers believe they have found a qualitative correlation between nephrogenic systemic fibrosis (NSF)-like symptoms and the release of free gadolinium in an experimental study. In this animal model, a multiple-injection scheme was used to replicate the prolonged systemic exposure to contrast media that is experienced after repeated gadolinium administration in patients with severe renal impairment.
Headgear: Is radiosurgery the right treatment for trigeminal neuralgia? December 31, 2007 -- The nerve disorder trigeminal neuralgia (TN) is not that common, but with the median age of 67 at diagnosis it has the potential to be a widespread health issue among aging baby boomers. Radiosurgery has gained popularity as a way to manage TN, but will it become the gold standard treatment? Neurosurgeons who work with radiosurgery praise it as being faster, safer, and just as effective as traditional management methods.
Sublingual nitroglycerin improves coronary CTA December 31, 2007 -- Nitroglycerin significantly improves the results of coronary CT angiography (CTA) by dilating the coronary arteries before scanning, researchers in Belgium have reported. Their study found that vessel lumen diameters and average volumes were larger when nitroglycerin spray was administered sublingually before scanning. Their study appears in the January issue of the American Journal of Roentgenology.
Dual-source CTA improves temporal resolution for cardiac imaging December 28, 2007 -- (Radiology Review) Dual-source CT angiography (CTA) enables noninvasive, functional cardiac analysis, including accurate assessment of left ventricular myocardial function and reliable evaluation of regional wall motion, according to a pilot study by German researchers.
VC program takes off in nonacademic setting December 21, 2007 -- Radiologists in Belgium have built a popular virtual colonoscopy practice they credit with increasing awareness of colorectal cancer screening in their community and reducing unnecessary optical colonoscopies. The screening model offers a glimpse of what U.S.-based community screening practice might look like with a bit of reimbursement.