title: Disorders of the Hip.
abstract: MR imaging has fulfilled many of the dreams of the pediatric radiologist studying the hip: it has allowed depiction of detailed anatomy, evaluation of vascularity and perfusion, determination of synovial proliferation activity in chronic arthritis, and detection of bone marrow changes with great sensitivity. MR imaging also has brought some disenchantments; it lacks specificity, it is expensive and long, and it often requires sedation. MR imaging is operator dependent and hardware and software dependent. Finally, issues of cost-effectiveness and clinical efficacy in comparison with good physical examination and conventional radiography or ultrasound remain unresolved. Demonstration of its cost-effectiveness in the clinical setting is clearly the dominant challenge facing MR imaging today.
authors.affiliation: Department of Pediatric Radiology, H opital Robert Debre, Assistance Publique-H opitaux de Paris, Paris, France.
authors.forename: G H
authors.initials: GH
authors.lastname: Sebag
mesh_terms: D000293:Adolescent; D001168:Arthritis / Q000175:diagnosis; D001853:Bone Marrow / Q000473:pathology; D002455:Cell Division; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D003362:Cost-Benefit Analysis; D005069:Evaluation Studies as Topic; D005260:Female; D006621:Hip Joint / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D006993:Hypnotics and Sedatives / Q000627:therapeutic use; D007223:Infant; D007592:Joint Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000191:economics / Q000295:instrumentation / Q000379:methods; D008297:Male; D010808:Physical Examination; D011859:Radiography; D012680:Sensitivity and Specificity; D013583:Synovial Membrane / Q000473:pathology; D014463:Ultrasonography
chemical_list: D006993:Hypnotics and Sedatives