DIAGNOSIS AVASCULAR NECROSIS OF THE FEMORAL HEAD USING MR IMAGING NUCLEAR MEDICINE AND MEDICAL RADIOLOGY DEPARTMENT
Keywords:
Keywords: hip, osteonecrosis, avascular necrosis, radiation diagnostics.Abstract
Abstract: Due to the pattern of its blood supply, the femoral head is
particularly vulnerable to avascular necrosis (AVN). Nontraumatic AVN is a
devastating disorder affecting young patients, and despite treatment it normally
follows a progressive course toward a destructive osteoarthropathy. Magnetic
resonance (MR) imaging is currently used in major classification systems solely
for early detection of femoral head AVN when plain radiographs are normal. More
recent data have shown that MR imaging may improve staging, investigate
radiologically occult collapse, depict other causes of disability and pain, assess
prognosis, and evaluate treatment. This article reviews the established and
evolving knowledge on MR imaging strategies and their role to visualize areas
and staging lesions of the hip joint with AVN of the femoral head.
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