Radiology News
FDG-PET uptake linked to risk of acute aortic dissection
April 30, 2010 -- Researchers in Japan have found that uptake of FDG in PET/CT scans of acute aortic dissection is significantly associated with an increased risk of rupture and poor patient outcomes, according to a new study published in the May issue of the Journal of Nuclear Medicine.
Conn. breast density law causes conundrum for mammo sites
April 29, 2010 -- A new Connecticut law that mandates that women undergoing mammography be informed of their breast tissue density rating could spark increased use of ultrasound for breast cancer screening. But are radiologists ready for the additional workload if similar legislation spreads across the U.S.?
CT perfusion distinguishes HCC from other liver lesions
April 29, 2010 -- Radiologists in China are getting more traction out of their CT liver protocols with the use of perfusion dual-source CT (DSCT) exams, taking a bite out of MRI's traditional superiority in the process. DSCT is showing that it can often do a better job in differentially diagnosing hepatocellular carcinoma (HCC), liver metastases, and cavernous hemangioma in the clinical setting.
U.S. children's hospitals reduce CT exam volume
April 29, 2010 -- Have efforts to raise awareness about pediatric radiation dose resulted in a lower volume of CT studies for children in the U.S.? That appears to be the case, according to an article published in the May issue of the American Journal of Roentgenology.
CT calcium scores boost value of cardiac risk factors
April 28, 2010 -- A new analysis of a major cardiac risk study published today in the Journal of the American Medical Association found that CT coronary artery calcium scoring significantly boosts the power of traditional risk factors for predicting adverse cardiac events over the long term.
Medicare cancer imaging grows at twice rate of overall expenses
April 27, 2010 -- Medicare spending on medical imaging for cancer patients grew at twice the rate of overall cancer spending in the U.S. program from 1999 to 2006, with PET expenses growing at the fastest rate, according to a new study in the April 28 issue of the Journal of the American Medical Association.
Digital radiography falls short in lung cancer screening trial
April 27, 2010 -- While establishing the feasibility of digital radiography (DR) for lung cancer screening, a Dutch study has questioned the practicality of DR as a substitute for CT in detecting lung masses, according to a study published in the May issue of Radiology.
MedCAC bombarded with info about prostate radiotherapy
April 26, 2010 -- An advisory committee to the U.S. Centers for Medicare and Medicaid Services (CMS) tried to get a handle on the thorny issue of radiation therapy for prostate cancer last week. But the panel encountered a thicket of literature that despite its volume failed to offer much guidance as to whether CMS should increase Medicare reimbursement.
MRI hippocampal measurement doesn't predict cognitive decline
April 26, 2010 -- Using MRI to measure hippocampal volume is not a good method for predicting subsequent cognitive decline in older adults from the general community, according to a study presented at the recent American Academy of Neurology meeting in Toronto.
Coronary CTA best next test for positive stress patients
April 23, 2010 -- Asymptomatic individuals with positive cardiac stress results should proceed to coronary CT angiography (CTA) rather than an invasive cardiac catheterization, according to a new report in the May American Journal of Roentgenology. The study found that low-risk patients received more cost-effective care by using coronary CTA as a gatekeeper test.
Low-performing mammographers need additional training
April 23, 2010 -- A study published in the May issue of Radiology has identified set criteria that could be used to identify physicians who may benefit from additional training in interpreting screening mammograms.
Imaging utilization can vary widely for pediatric inpatients
April 23, 2010 -- What factors influence the number of diagnostic imaging exams ordered for inpatients in children's hospitals in the U.S.? A statistical analysis of nearly 1.5 million pediatric inpatients conducted by researchers at Children's Hospital Boston generated more questions than answers.
Pediatric CT dose is low but varies widely in Belgium
April 23, 2010 -- A national survey of scan protocol behavior and radiation dose at hospitals in Belgium has found that even though most facilities are generally keeping pediatric CT radiation dose low, there is still some variation between sites in terms of median dose levels.
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