title: [Anatomy and variants of hepatic segments, vessels, and bile ducts].
abstract: Knowledge of normal liver anatomy and its variants is indispensable for the radiologist. Accurate assessment of anomalies of the arterial, portal (venous), and biliary system and of liver segments using computed tomography is necessary for consultation with the surgeon and deciding on the therapeutic strategy. The multidetector CT is the most important tool for preoperative evaluation. Alternatively, MRI can be used with special regard to the biliary system (MRCP). This article reviews the most important variants of the liver detected with imaging modalities and their clinical relevance.
authors.affiliation: Universitätsklinik für Radiodiagnostik, Medizinuniversität Wien, Osterreich. albert.dirisamer@meduniwien.ac.at
authors.forename: A
authors.initials: A
authors.lastname: Dirisamer
authors.forename: K
authors.initials: K
authors.lastname: Friedrich
authors.forename: W
authors.initials: W
authors.lastname: Schima
mesh_terms: D001653:Bile Ducts, Intrahepatic / Q000002:abnormalities / Q000473:pathology*; D049448:Cholangiopancreatography, Magnetic Resonance; D003135:Common Bile Duct / Q000002:abnormalities / Q000473:pathology; D003549:Cystic Duct / Q000002:abnormalities / Q000473:pathology; D006499:Hepatic Artery / Q000002:abnormalities / Q000473:pathology*; D006503:Hepatic Veins / Q000002:abnormalities / Q000473:pathology*; D006801:Humans; D008099:Liver / Q000002:abnormalities / Q000473:pathology*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D011169:Portal Vein / Q000002:abnormalities / Q000473:pathology*; D012016:Reference Values