Radiology News
Volume helical shuttle CT perfusion identifies stroke patients
April 20, 2010 -- Whole-brain CT perfusion with a volume helical shuttle technique provides rapid confirmation of whether patients have suffered a stroke or transient ischemic attack, according to studies presented last week at the American Academy of Neurology annual meeting in Toronto.
Dual-phase CT protocol drops dose for tracheal exams in kids
April 20, 2010 -- Tracheomalacia, a weakness in the tracheal walls and supporting cartilage that can cause expiratory collapse, can be difficult to diagnose. Dual-phase CT provides a fast and accurate means of diagnosing the condition, but its use comes with an important caveat: double the radiation dose.
3T MRA protocol has value but falls short in abdominal vasculature
April 19, 2010 -- A time-resolved 3-tesla MR angiography (MRA) technique that uses less contrast dose than conventional high-resolution MRI has some advantages in the abdominal aorta, but its lower signal-to-noise ratio means it probably won't supplant conventional MRA, according to a study in the May Academic Radiology.
CT attenuation improves sensitivity for bowel wall obstruction
April 19, 2010 -- A technique that analyzes the attenuation of small regions of interest in the bowel wall at CT can improve the diagnosis of suspected bowel wall ischemia, a condition associated with substantial morbidity and mortality, according to a study in the April American Journal of Roentgenology.
Role-playing helps rads convey news about fetal abnormalities
April 16, 2010 -- BOSTON - Advanced ultrasound and MRI procedures are making it easier for radiologists to identify fetal abnormalities. But telling a pregnant woman the news, often early in a pregnancy, is increasingly becoming the responsibility of pediatric radiologists, who are assuming roles as front-line physicians.
Obama signs bill averting 21% Medicare pay cut
April 16, 2010 -- Both the U.S Senate and House of Representatives passed legislation yesterday that once again temporarily delays the 21% cut in physician reimbursements mandated by the sustainable growth rate formula, this time through May 31.
Creutzfeldt-Jakob disease on MRI often missed by radiologists
April 16, 2010 -- TORONTO - General radiologists reviewing MRI scans missed 65% of cases of Creutzfeldt-Jakob disease -- most of which were later spotted by specialist radiologists more familiar with the condition, according to a study presented at the American Academy of Neurology annual meeting.
Small colon polyps on VC suggest presence of larger lesions
April 16, 2010 -- Individuals with several diminutive colon polyps on virtual colonoscopy studies are far more likely than other screening subjects to also have a larger colorectal lesion, say researchers from the University of Munich in Germany.
Skeletal PET gains support for pediatric bone scans
April 15, 2010 -- BOSTON - Skeletal scintigraphy with F-18 sodium fluoride is a safe and effective way to diagnose skeletal disorders in children and could be used instead of bone SPECT exams, according to research presented on Wednesday at the Society for Pediatric Radiology meeting.
Radisphere skirts local groups in bid for hospital contracts
April 15, 2010 -- That sound you hear might just be a dam breaking. Radiology's traditional model of community-based group practices suffered another blow last week with the launch of Radisphere National Radiology Group, which is bypassing local radiology practices to sign contracts directly with hospitals.
Automated exposure control delivers uneven CT dose reduction
April 15, 2010 -- Reducing tube current may be a popular way to lower CT radiation dose, but it's not necessarily an effective one. In a new study, medical physicists from Greece found that organ dose reductions resulting from tube current modulation with automated exposure control can vary -- especially in children.
MR scans may detect signs of early dementia in elderly
April 14, 2010 -- TORONTO - MRI can detect signs of white-matter hyperintensity in the elderly that may indicate three times the risk of developing dementia, according to a French study presented this week at the American Academy of Neurology's annual meeting.
CT shows abdominal fat is unreliable Crohn's treatment target
April 14, 2010 -- A few reports have associated abdominal visceral fat with more aggressive forms of Crohn's disease, but the strength of the association -- and the implications for treatment -- remain unclear. Researchers from Ireland decided to try CT to resolve the issue.
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