title: Detection of occult wrist fractures by magnetic resonance imaging.
abstract: The early detection and management of wrist fractures may avert potential complications and patient morbidity. Five cases are described in which radiographically-occult fractures were clearly demonstrated by magnetic resonance imaging (MRI). These fractures were seen on MRI as a low signal linear band on T1- and T2-weighted images, with surrounding increased signal intensity from bone marrow oedema on T2-weighted images. In one case, intense oedema obscured the fracture line on the initial MR scan. MRI is useful in confirming the presence of a fracture, delineating its exact shape and location, and in the follow-up of these injuries during and after treatment.
authors.affiliation: Department of Diagnostic Radiology, University of Hong Kong, Queen Mary Hospital, Hong Kong.
authors.forename: W C
authors.initials: WC
authors.lastname: Peh
authors.forename: L A
authors.initials: LA
authors.lastname: Gilula
authors.forename: A J
authors.initials: AJ
authors.lastname: Wilson
mesh_terms: D000328:Adult; D005260:Female; D050723:Fractures, Bone / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011859:Radiography; D011877:Radionuclide Imaging; D014954:Wrist Injuries / Q000175:diagnosis* / Q000000981:diagnostic imaging