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Objective: This study aims to evaluate the value of 320 slice Computed Tomography Angiography (CTA) in evaluating puncture approaches by simulating Intrahepatic Portosystemic Shunt (IPS) in cirrhotic patients with portal hypertension. Methods: A total of 30 patients with hepatic cirrhosis and portal hypertension, who underwent IPS from November 2014 to January 2017 at Yunnan Province Second People's Hospital, were selected for this study. The CTA data acquired before surgery were retrospectively analysed. The puncture distances and puncture angles from the right hepatic vein, middle hepatic vein and left hepatic vein to the portal vein and its branches were measured and compared with those acquired by Digital Subtraction Angiography (DSA). Then, the differences between the puncture distances and angles acquired by CTA and DSA were evaluated. Results: Differences between puncture distances and angles acquired by CTA and DSA were not statistically significant (P>0.05). Conclusions: Puncture distances and angles acquired by CTA were consistent with those acquired by DSA. This can provide an imaging basis for the preoperative surgical planning of IPS.

320-slice CT angiography before hepatic intrahepatic portosystemic shunt for evaluating the puncture approach