Fig. 3

Intraoperative findings. a Portography and measurement of portal vein pressure were performed. Before temporary occlusion of the right portal vein, portal vein pressure was 13 mmHg and portography showed almost all portal vein flow draining into the hepatic vein through the IPSS. b After the temporary occlusion of the right portal vein, the portal vein pressure was 16 mmHg, and portography showed good contrast of left portal vein, intrahepatic portal vein, and hepatic vein and no IPSS in the left lobe. c A collection of multiple vessels was observed that were thought to be shunt vessels during resection of liver parenchyma