title: Hepatic hilar and sectorial vascular and biliary anatomy in right graft adult live liver donor transplantation.
abstract: BACKGROUND
  The aim of this study was to analyze vascular and biliary variants at the hilar and sectorial level in right graft adult living donor liver transplantation.
  
  
  METHODS
  From January 2003 to June 2007, 139 consecutive live liver donors underwent three-dimensional computed tomography (3-D CT) reconstructions and virtual 3-D liver partitioning. We evaluated the portal (PV), arterial (HA), and biliary (BD) anatomy.
  
  
  RESULTS
  The hilar and sectorial biliary/vascular anatomy was predominantly normal (70%-85% and 67%-78%, respectively). BD and HA showed an equal incidence (30%) of hilar anomalies. BD and PV had a nearly identical incidence of sectorial abnormalities (64.7% and 66.2%, respectively). The most frequent "single" anomaly was seen centrally in HA (21%) and distally in BD (18%). A "double" anomaly involved BD/HA (7.2%) in the hilum, and HA/PV and BD/PV (6.5% each) sectorially. A "triple" anomaly involving all systems was found at the hilum in 1.4% of cases, and at the sectorial level in 9.4% of instances. Simultanous central and distal abnormalities were rare. In this study, 13.7% of all donor candidates showed normal hilar and sectorial anatomy involving all 3 systems. A simultaneous central and distal "triple" abnormality was not encountered. A combination of "triple" hilar anomaly with "triple" sectorial normality was observed in 2 cases (1.4%). A central "triple" normality associated with a distal "triple" abnormality occurred in 7 livers (5%).
  
  
  CONCLUSIONS
  Our data showed a variety of "horizontal" (hilar or sectorial) and "vertical" (hilar and sectorial) vascular and biliary branching patterns, providing comprehensive assistance for surgical decision-making prior to right graft hepatectomy.
authors.affiliation: Department of General and Abdominal Surgery, Johannes Gutenberg University Hospital, Mainz, Germany; Department of General, Visceral, and Transplantation Surgery, University Hospital Essen, Essen, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Radtke
authors.forename: G
authors.initials: G
authors.lastname: Sgourakis
authors.forename: G C
authors.initials: GC
authors.lastname: Sotiropoulos
authors.forename: E P
authors.initials: EP
authors.lastname: Molmenti
authors.forename: S
authors.initials: S
authors.lastname: Nadalin
authors.forename: I
authors.initials: I
authors.lastname: Fouzas
authors.forename: T
authors.initials: T
authors.lastname: Schroeder
authors.forename: F H
authors.initials: FH
authors.lastname: Saner
authors.forename: A
authors.initials: A
authors.lastname: Schenk
authors.forename: V R
authors.initials: VR
authors.lastname: Cicinnati
authors.forename: M
authors.initials: M
authors.lastname: Malagó
authors.forename: H
authors.initials: H
authors.lastname: Lang
mesh_terms: D000328:Adult; D002765:Cholecystography; D005704:Gallbladder / Q000033:anatomy & histology*; D006499:Hepatic Artery / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006503:Hepatic Veins / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008099:Liver / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D016031:Liver Transplantation / Q000379:methods*; D019520:Living Donors / Q000706:statistics & numerical data*; D014057:Tomography, X-Ray Computed