title: [Pre- and postoperative NMR tomographic studies in avascular femur head necrosis].
abstract: 46 patients with avascular necrosis of the femoral head were examined by T2- and T1-weighted MR before and after infusion of Gd-DTPA. Both sides were involved in 12 cases. The classification was done according to Ficat. In early stages and in postoperative studies a correlation of signal intensity after infusion of Gd-DTPA and clinical symptoms was found. Hyperintensity of the avascular area or of the implanted material was assumed to be vascularised or vital components in 4 cases of Ficat I and in 15 postoperative studies. Contrariwise, we found in 5 patients with severe postoperative symptoms, low signal intensity areas due to avascular regions.
authors.affiliation: Radiologische Klinik und Poliklinik, Ludwig-Maximilians-Universität München.
authors.forename: H
authors.initials: H
authors.lastname: Schedel
authors.forename: H
authors.initials: H
authors.lastname: Buchner
authors.forename: L
authors.initials: L
authors.lastname: Ziegler
authors.forename: T
authors.initials: T
authors.lastname: Vogl
authors.forename: T
authors.initials: T
authors.lastname: Hilbertz
authors.forename: J
authors.initials: J
authors.lastname: Lissner
mesh_terms: D003287:Contrast Media; D005270:Femur Head / Q000473:pathology / Q000601:surgery; D005271:Femur Head Necrosis / Q000145:classification / Q000175:diagnosis* / Q000601:surgery; D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011182:Postoperative Care; D011300:Preoperative Care
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA
vernacular_title: Prä- und postoperative kernspintomographische Untersuchungen bei avaskulären Hüftkopfnekrosen.