CT, MRI use declined in ED after 2007
August 20, 2014 -- After a period of rapid increase from 1993 to 2007, use of medical imaging in the emergency department (ED) declined, mostly because of decreased utilization of CT and MRI, according to a new study published this month in the American Journal of Roentgenology.
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Decade of lung CAD brings insight, but little daily use
August 19, 2014 -- Computer-aided detection (CAD) is known to boost radiologist performance in the detection of lung nodules, and radiologists certainly need the help. But despite a decade of fine-tuning and some powerful new capabilities, CAD systems haven't found a place in daily practice at most imaging facilities
Study shows combined thoracic CT use has dropped
August 14, 2014 -- Combined CT scans of the thorax -- which Medicare has been keeping an eye on -- aren't being overused after all. In fact, use of the combined scans is low and falling over time, according to a new study in the Journal of the American College of Radiology.
Interventional radiologists need to follow shielding protocols
August 13, 2014 -- There has been much discussion about protecting patients from unnecessary radiation exposure, but what about radiologists who perform interventional exams, particularly CT-guided procedures? German researchers found that radiologists have a low risk of overexposure -- if appropriate precautions are taken.
Circulation: Little radiation risk seen in cardiac scans
August 11, 2014 -- A lack of demonstrated harms combined with significant recent dose reductions have led at least one group of cardiovascular imaging specialists to worry less about the risks of a heart scan and more about the well-being of the patient, according to a new review article in Circulation.
Automated CT tool reveals pulmonary hypertension
August 8, 2014 -- In a new study that used computer-aided analysis, the presence of low normal lung tissue volume correlated with pulmonary arterial hypertension at 3D CT. The technique could offer a more accessible and less invasive diagnostic test than right heart catheterization, according to researchers from Japan.
Do homework before plugging in CT iterative reconstruction
August 6, 2014 -- Implementing iterative reconstruction on your CT scanner is more than just turning the thing on: You need a careful stepwise approach to get the most out of the radiation dose reduction technology, according to Dr. Jeffrey Mendel. In fact, a full review of your institution's CT protocols could be in order.
CT shows Egyptian heart disease hasn't changed in millennia
August 4, 2014 -- CT scans of coronary artery calcium in modern Egyptians revealed that they had patterns of atherosclerosis nearly identical to those of ancient Egyptian mummies -- right down to the affected anatomy, according to a new study in Global Heart.
Imaging exams guided treatment after Boston Marathon bombing
July 30, 2014 -- Medical imaging exams such as x-ray and CT played a key role in managing patients who arrived in the minutes and hours after the Boston Marathon bombing last year, according to a study in the August issue of the American Journal of Roentgenology.
CT lung screening participants not bothered by false positives
July 25, 2014 -- Participants in the massive National Lung Screening Trial weren't troubled by false-positive initial results suggesting they might have cancer -- possibly because they had been well-prepared in advance for such alarms, according to a report published on Friday in Cancer.