Model finds small polyp surveillance safe, cost-effective November 4, 2008 -- A new model analysis concludes that surveillance of small (6- to 9-mm) colorectal polyps is both safe and cost-effective compared to immediate polypectomy, which suffers from relatively high costs, rare complications, and above all a low yield for colorectal cancer in lesions smaller than 10 mm in diameter.
HF weekly radiation effective for elderly breast cancer patients October 30, 2008 -- Results of a clinical study at the Institut Curie in Paris verify that patients with nonmetastatic breast cancer can achieve the same long-term outcomes with conservative surgery followed by weekly high-frequency (HF) radiotherapy as patients who receive conservative surgery followed by daily radiation therapy.
MR arthrography study finds 'optimal injection site' October 24, 2008 -- Researchers in Spain are recommending that physicians use the upper third of the humeral head as the optimal injection site for anterior MR arthrography of the shoulder. They also concluded that it is "a simple, rapid procedure that is well tolerated by patients and reduces the radiation dose administered."
Swiss pediatric CT survey leads to national dose standards October 23, 2008 -- When a child needs a CT exam of the head, chest, or abdomen in Switzerland, pediatricians and parents can be assured that the radiation dose exposure will be identical regardless of the hospital. The country's success in standardizing pediatric CT dose could provide a model for similar efforts under way in the U.S.
MRI used to diagnose complex lung infections in children October 16, 2008 -- CT is the gold standard for lung imaging, particularly when a chest x-ray lacks the detail needed to make a diagnosis. But CT's far higher radiation dose -- equivalent to 200 chest radiographs -- has some pediatric radiologists looking for an alternative modality, especially for children with chronic lung conditions who may require many CT scans.
Autopsy study confirms low prevalence of adenomas in youth October 14, 2008 -- A rare autopsy study of more than 3,500 individuals found that the incidence of colorectal adenomas is low in those under 50, but rises sharply in the sixth decade of life. The study, which provides important new information about the natural history of colorectal polyps and cancer in the young, supports current guidelines recommending that screening begin at age 50.
Faster respiratory motion prediction aids radiotherapy October 10, 2008 -- Respiratory motion compensation algorithms are helping to reduce the irradiation of healthy tissues during radiotherapy by compensating for the patient's breathing during treatment. Researchers from Germany have developed new algorithms that reduce the computational burden of motion-tracking algorithms while maintaining accuracy.
Two-point US exam keeps up with whole-leg US in detecting DVT October 9, 2008 -- A serial two-point compression ultrasound study produced equivalent performance to whole-leg ultrasound in diagnosing suspected deep vein thrombosis (DVT), according to a large-scale, multicenter trial published in the October 8 issue of the Journal of the American Medical Association.
Norwegian study finds mixed success with electronic reports October 6, 2008 -- Streamlining the process of delivering radiology reports -- and making them universally accessible -- doesn't guarantee that they'll be read any faster by clinicians. In fact, quite the opposite may occur if human behavior doesn't adapt to the changes imposed by adopting healthcare informatics.
CEUS shines in complex cystic renal masses October 3, 2008 -- Contrast-enhanced ultrasound (CEUS) bested unenhanced ultrasound and CT for detecting cancer in complex cystic renal masses, according to research from Cattinara Hospital in Trieste, Italy.