Liver transplant donor candidates: associations between vascular and biliary anatomic variants

Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
Vivian S LeeGlenn A Krinsky

Abstract

Our objective was to investigate the coexistence of vascular and biliary anatomic variants, the latter of which are known to increase the risk of biliary complications in living liver donor transplantation. A total of 108 consecutive liver donor candidates were examined by magnetic resonance (MR) imaging that included 2 MR cholangiography methods, T2-weighted MR cholangiography and mangofodipir-enhanced T1-weighted three-dimensional (3D) MR cholangiography, as well as gadolinium-enhanced MR angiography and venography of the liver. Images were interpreted by at least 2 investigators in consensus for definition of hepatic arterial, portal venous, and biliary anatomy. A subset of 51 subjects underwent laparotomy for right hepatectomy. Of the 108 subjects examined, 50 (46%) demonstrated normal hepatic artery, portal vein, and biliary anatomy. Variants of the hepatic artery were found in 27 of 108 (25%) subjects, of the portal vein in 12 of 108 (11%) subjects, and of the bile ducts in 30 of 108 (28%) subjects. Of the 27 subjects with hepatic arterial variants, 8 (30%) also had variant biliary anatomy. The association between hepatic arterial variants and biliary variants was not statistically significant (P >.5). However, of the 12 ...Continue Reading

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