Objective: To observe the efficacy of 3-dimensional image recombinant guidance in treatment of portal hypertension.
Methods: A total of 73 cases of portal hypertension were randomized into study and control groups: In study group (n=37), 3DCT or MRA imaging display of whole portal venous system was used as guide in selecting portoazygos vein disconnection (P-AVD) operation; in control group (n=36), the classic P-AVD operation was performed.The postoperative complication rate and the degree of amelioration of esophageal varices were cbserved.
Results: Compared with the control group, the short term rebleeding rate in observation group(0.00%, 0/37) was lower than that in control group(11.11%, 4/36),  improvement rate of esophageal varices  in observation group(100%, 37/37) was higher than that in control group(86.11%, 31/36), and the aggregate rate of portal hypertensive gastric disease and esophageal varices in observation group(0.00%, 0/36)was lower than that in control group(13.9%, 5/36). There was a statistical difference between the two groups (all P＜0.05).
Conclusions: The use of 3DCT or MRA imaging to display the whole portal venous system as guidance in selecting the operative procedure and the extension of P-AVD has the advantages of less surgical trauma and better prognsis than the classic P-AVD procedure.