Abstract:

        Objective  To provide anatomic data for intrahepatic portosystemic shunt, by simulating puncture channel and measuring the angle between right branch of portal vein and intermediate hepatic veins or right hepatic veins. Methods  40 cases without liver diseases and 14 cases of cirrhosis underwent the upper abdomen 64-MSCT scan, which was initiated after the test of the celiac levels of abdominal aorta by the smart tracking technology (Smart Prep). The imaging data was processed on the GE ADW4.2 workstations. Results Despite of normal or cirrhosis Child-Pugh A, B grade group, the puncture channels of right hepatic vein or middle hepatic vein about 1cm, 2cm, 3cm and right branch of portal vein about 1cm and 2cm , and the average angle between the hepatic veins, showed a decreased tendency, however, the puncture channel between the right branch of portal vein showed a increased tendency. There was no significant difference for puncture channels and angles among normal group and liver cirrhosis Child-Pugh A, B grade group.  Conclusions   The angle between the intermediate hepatic veins and right hepatic veins or right branch of portal vein is the opposite direction, compared to the simulated puncture channel. It is suitable to puncture between intermediate hepatic veins 2cm and right branch of portal vein 2cm.

Key words: 64-Slice spiral computed tomography, Three-dimensional reconstruction, Intrahepatic portosystemic shunt, Measurement