Current concepts in magnetic resonance imaging of the adult hip and pelvis

MRI is the diagnostic imaging modality of choice for most disorders of the hip and pelvis in the setting of nondiagnostic plain radiographs. Quality images of the entire pelvis with high-resolution images of the affected hip are recommended. Intravenous gadolinium is administered in cases of suspected soft-tissue or bone infection. MR arthrography enables assessment of the joint space and the acetabular labrum. With MRI, the radiologist has the ability to stage pathological conditions of the hip and pelvis in such a way as to determine prognosis and influence therapeutic decisions.