title: [Magnetic resonance tomography in orthotopic liver transplantation].
abstract: 14 patients with orthotopic liver transplantation were prospectively studied with MR imaging. MR imaging demonstrated a perivascular collar surrounding central portal venous branches in 14 patients. The perivascular collar had low signal intensity on T1-weighted and high signal intensity on T2-weighted images. In 10 of the 14 patients, a perivascular collar was also observed around peripheral portal venous branches. The perivascular collar is probably caused by intraoperative interruption of hepatic lymph vessels and resultant impaired lymph drainage. It is a normal postoperative phenomenon in hepatic transplants. MR imaging is particularly useful in the distinction of postoperative hematoma from other intra- and extrahepatic fluid collections and may provide a noninvasive assessment of liver transplant rejection.
authors.affiliation: Radiologische Klinik, Universitätsklinikum Rudolf Virchow, Standort Charlottenburg, Freie Universität Berlin.
authors.forename: P
authors.initials: P
authors.lastname: Lang
authors.forename: M
authors.initials: M
authors.lastname: Langer
authors.forename: M
authors.initials: M
authors.lastname: Mauz
authors.forename: R
authors.initials: R
authors.lastname: Bittner
authors.forename: R
authors.initials: R
authors.lastname: Steffen
authors.forename: P
authors.initials: P
authors.lastname: Neuhaus
authors.forename: R
authors.initials: R
authors.lastname: Felix
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D016031:Liver Transplantation; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis*
vernacular_title: Magnetische Kernresonanztomographie bei orthotoper Lebertransplantation.