RADIOLOGY NEWS
VC in elderly patients yields extracolonic advantage
November 7, 2007 -- Virtual colonoscopy is a valuable screening tool in symptomatic individuals age 70 and older, yielding diagnostic benefits far beyond the scope of barium enema exams, which remain common in the U.K. due to staffing and equipment issues, researchers report in this month's American Journal of Roentgenology.
Italian multicenter VC trial screens higher-risk cohort
October 17, 2007 -- BOSTON - One of the largest virtual colonoscopy trials ever aimed at a higher-risk screening population has yielded good results across 12 sites in Italy. Researchers presented the first results of the study on Tuesday at the International Symposium on Virtual Colonoscopy.
Advanced liver imaging shapes surgical strategies
September 18, 2007 -- The days of planning liver interventions on the strength of a few CT or MR reconstructions may be numbered. Researchers from Germany and beyond are honing a set of advanced planning tools that not only provide high-resolution color-coded 3D visualization of the liver parenchyma and vasculature, but offer quantitative views of the intrahepatic vessel branching system and the risks of cutting at a given point in the organ.
ESR adopts 'bigger is better' membership strategy
August 13, 2007 -- Although the Radiological Society of North America continues to host the world's largest radiology meeting, the Vienna-based European Society of Radiology (ESR) hopes to surpass RSNA's membership numbers, partially through an innovative low-cost membership drive. The philosophy behind the membership drive can be summed up with ESR's new slogan: "The bigger we are -- the better we can serve you."
Giant virtual reality chamber boosts 3D echo accuracy
August 2, 2007 -- Have you ever diagnosed a three-foot-tall 3D heart? Talk about cardiomegaly. Researchers from the Netherlands who survived the experience found they could diagnose valve defects that went unnoticed in a standard 2D exam. At the 2007 Computer Assisted Radiology and Surgery (CARS) meeting in Berlin, Anton Koning, Ph.D., from Erasmus University Medical Center in Rotterdam discussed how 3D visualizes complex pathology of the heart and how image display can be improved with different kinds of VR (virtual reality) systems.
Alliance for MRI gains delay, but new European rules still loom
July 26, 2007 -- A coalition of European MRI advocates won a partial victory in June in its fight against new safety regulations that some believe will effectively shut down the use of MRI across the European Union. But the Alliance for MRI, led by the European Society of Radiology (ESR) of Vienna, faces additional struggle in winning a permanent injunction against implementation of the rules.
Cold case closed: CT solves iceman's cause of death
July 4, 2007 -- You could say it's the oldest open "cold case" to date -- the death of the famous Alpine glacier iceman. Since he was discovered in 1991, his 5,300-year-old mummified remains have been subjected to numerous scientific tests, and theories have abounded as to how he died. Recently, however, a team of Italian and Swiss researchers determined the iceman's exact cause of death using multidetector-row CT (MDCT).
Lower tube voltage leads to reduced dose in pediatric CT
June 14, 2007 -- SAN FRANCISCO - Radiation dose can be reduced in pediatric CT imaging without compromising image quality by using lower tube voltages, according to CT pioneer Willi Kalender, Ph.D. Dose could potentially be reduced even further if manufacturers tweaked their systems to enable them to scan at lower energies than those commonly used now, he said at yesterday's sessions of Stanford University's International Symposium on Multidetector-Row CT.
Presurgical fMRI for tumor resection: Are we there yet?
May 21, 2007 -- BERLIN - In theory, functional MRI offers the ultimate noninvasive, presurgical management tool for brain tumor resection. In practice, fMRI techniques have a way to go before they can be as accurate as intraoperative cortical stimulation (ICS), according to Dr. Stefan Sunaert, Ph.D., from the University Hospital of the Catholic University of Leuven in Belgium. Sunaert discussed some of the strengths and weaknesses of fMRI for brain tumor mapping in a talk Sunday at the International Society for Magnetic Resonance in Medicine (ISMRM) meeting.
Two-segment CTA reconstruction aids images, not accuracy
May 21, 2007 -- For patients with faster heart rates, the use of two-segment reconstruction improves image quality at 64-slice coronary CT angiography (CTA), according to a study from Germany. Among all patients, however, accuracy was not improved using two-segment when compared to single-segment reconstruction.
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