ACC study: Sequential CT delivers less radiation, good image quality March 31, 2009 -- ORLANDO - Using a sequential scanning mode during coronary CT angiography studies cuts radiation dose in half without impairing image quality compared to standard retrospective spiral data acquisition, according to a study presented at this week's American College of Cardiology (ACC) meeting.
German conference yields data compression recommendations March 30, 2009 -- Germany is the latest country to benefit from clinical recommendations on the use of lossy compression in radiology, with a recent consensus conference adding its own findings to newly issued research in Canada and the U.K.
Automated CT volumetry of lymph nodes gauges treatment response March 27, 2009 -- Cancer patients who respond to neoadjuvant therapy have a better prognosis than nonresponders, of course, but with the exception of FDG-PET, reductions in the size of tumors treated with chemotherapy or radiation have been difficult to gauge using imaging modalities that are capable of delineating the anatomy.
VC/AAA screening combo cost-effective in older adults March 26, 2009 -- A new analytic model has found that virtual colonoscopy is a highly cost-effective colon cancer screening method for older adults in the Medicare population, especially when combined with screening for abdominal aortic aneurysm (AAA), a test performed using the same CT dataset at little additional cost.
CAD performance changes with breast density March 25, 2009 -- Changes in breast density can affect the performance of computer-aided detection (CAD) software used to analyze mammography images, according to results of a study from Spain presented at the European Congress of Radiology.
Mammography CAD recalls baffle CADET II researchers March 20, 2009 -- Why do radiologists reviewing mammograms accept some prompts made by computer-aided detection (CAD) software, while others are rejected? Even researchers from one of Europe's most prominent CAD studies aren't sure, according to research presented at this month's European Congress of Radiology.
7-tesla breast MRI shows advantages in first tests March 13, 2009 -- The promise of a diagnostic advantage in mammography using powerful 7-tesla MRI was underlined by preliminary results presented at the European Congress of Radiology. Although image quality was improved compared to 1.5-tesla MRI, using such a powerful system might be problematic due to current patient safety rules.
CT often unjustified in the young; German pediatricians lack dose awareness March 10, 2009 -- VIENNA - 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.