Subspecialties: Page 1323

MR shows strength in imaging long bone fractures

By N. Shivapriya

MRI is useful in differentiating pathologic fractures from stress fractures in long bones when the clinical presentation of the fracture is misleading and radiography findings are also inconclusive. MRI is most sensitive to the presence of underlying bone marrow lesions and should be performed after radiography, according to researchers from the John Hopkins Medical Institutions in Baltimore.

October 20, 2005

MRI examines causes of osteoporosis

By Brian Casey

October 19, 2005

MR study exposes physiologic differences in aging bone

By Shalmali Pal

Today is World Osteoporosis Day and this year's theme is "Move it or lose it." While activities to raise awareness of the condition are planned around the world, doctors at the Chinese University of Hong Kong have been hard at work learning more about what causes bone density loss to begin with.

October 19, 2005

Colon muscles do heavy lifting in polyp positioning

By Eric Barnes

BOSTON - The teniae coli muscles have a big job -- enabling colon segments to contract independently and move contents along the lumen toward the distal end. And now, researchers at the National Institutes of Health (NIH) have given the teniae new responsibilities -- as guides for virtual colonoscopy readers navigating the inside of the colon.

October 18, 2005

US may assist in diagnosing fatty atrophy in rotator cuff muscles

By Erik L. Ridley

Ultrasound is moderately accurate in the diagnosis of substantial fatty atrophy of the supraspinatus or infraspinatus muscle, according to research published in Radiology.

October 18, 2005

Motion and contrast problems spoil CTPA most often

By Eric Barnes

Multidetector-row CT scanners have increased the accuracy of CT pulmonary angiography (CTPA) to 90% and higher for detecting pulmonary embolism, triaging patients in the emergency room, and ultimately sparing lives. In the small percentage of indeterminate CTPA findings, however, motion artifacts and contrast delivery are usually to blame, according to researchers in France.

October 18, 2005