Topological approach of liver segmentation based on 3D visualization technology in surgical planning for split liver transplantation

Figure 1 The range of hepatic ischemia was calculated by simulating the left-lateral segment and right tri-segment splitting. A: The simulated operation based on Couinaud liver segmentation; B: The liver segments constructed via the topological structural relationship of portal vein blood flow; C: The calculated liver volume of the Ⅱ/Ⅲ/Ⅳ segments based on the blood flow topology liver segmentation method; D: The volume of ischemic range in the hepatic segment of the right tri-segment after split liver transplantation (black arrow).