title: Anatomy and variation of right posterior portal vein in Chinese population.
abstract: OBJECTIVE
  Our assessment of the segmental anatomy of the liver will allow more systematic and limited segmentectomies, as well as a safer harvesting for liver sectors in LDLT.
  
  
  METHODS
  We have examined 104 patients with normal intrahepatic vascular anatomy by helical CT scans and another 12 cases of cadaveric livers dissected to examine their bifurcation characteristics.
  
  
  RESULTS
  In 61 out of 104 (59%) cases, we have found out that the right posterior portal vein does not have obvious isolated bifurcation branches which can determine the boundary between the 6th and the 7th graft. In 8 out of 12 (66.6%) cadaveric livers cases, the RPV runs through the right posterior segment without any other large branches while the rest of them form an actinomorphic bifurcation.
  
  
  CONCLUSIONS
  Because of the major discrepancies that occurred in determining the boundary between the 6th and 7th segment, we propose a creative assessment of the segment of the right hemiliver and consider the right posterior graft as a unique segment.
authors: General Surgery Department, Ruijin Hospital affiliated to Shanghai Jiaotong University, Shanghai 200025, China.
authors: Shi
authors: S
authors: Yuan
authors: Shen
authors: S
authors: Baiyong
authors: Zhan
authors: Z
authors: Qian
authors: Chen
authors: C
authors: Hao
authors: Deng
authors: D
authors: Xiaxing
authors: Peng
authors: P
authors: Chenghong
authors: Li
authors: L
authors: Hongwei
authors: Li
authors: L
authors: Weixia
authors: Chen
authors: C
authors: Kemin
mesh_terms: D000328:Adult; D000368:Aged; D002102:Cadaver; D002681:China; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008099:Liver / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000033:anatomy & histology*; D011857:Radiographic Image Interpretation, Computer-Assisted; D036542:Tomography, Spiral Computed