title: Three-dimensional computed tomography for planning donor hepatectomy.
abstract: BACKGROUND
  An accurate estimation of preoperative volumetric measurements of the donor liver is essential in living donor liver transplantation.
  
  
  METHODS
  Three-dimensional (3-D) computed tomography (CT) was applied to 56 living donors. 3-D images of the liver were constructed using the region-growing method and the volume of each sector was measured.
  
  
  RESULTS
  The median volume ratios of the left liver, caudate lobe, right paramedian, and lateral sectors were 34%, 4%, 38%, and 25% of the total liver volume, respectively. The shape of the congestive area in the right paramedian sector was properly demonstrated by 3-D CT. The volume of the region corresponded to 32% of the right liver. The actual volume of the graft correlated well with the estimated graft volume (n = .86).
  
  
  CONCLUSIONS
  The region-growing method was useful for graft selection and for determining the indication of middle hepatic vein reconstruction in right liver grafts.
authors.affiliation: Artificial Organ and Transplantation Division, Department of Surgery, University of Tokyo, Tokyo, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Satou
authors.forename: Y
authors.initials: Y
authors.lastname: Sugawara
authors.forename: S
authors.initials: S
authors.lastname: Tamura
authors.forename: Y
authors.initials: Y
authors.lastname: Kishi
authors.forename: J
authors.initials: J
authors.lastname: Kaneko
authors.forename: Y
authors.initials: Y
authors.lastname: Matsui
authors.forename: N
authors.initials: N
authors.lastname: Kokudo
authors.forename: M
authors.initials: M
authors.lastname: Makuuchi
mesh_terms: D006498:Hepatectomy / Q000379:methods*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008099:Liver / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D016031:Liver Transplantation / Q000379:methods*; D019520:Living Donors; D009929:Organ Size; D012189:Retrospective Studies; D014019:Tissue Donors; D020858:Tissue and Organ Harvesting / Q000379:methods*; D014057:Tomography, X-Ray Computed