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目的 探讨胰源性门静脉系节段性阻塞 (PSOPS)的CT征象。材料与方法 回顾性分析 3 3例PSOPS患者的螺旋CT表现 ,同时以 2 0例无门静脉系阻塞的病例作对照。 3 3例PSOPS中 ,包括脾静脉阻塞 (SVO) 2 7例和肠系膜上静脉阻塞 (SMVO) 6例。结果 在SVO中 ,胃左静脉、胃短静脉、胃网膜静脉、胃结肠干曲张或扩张的比例分别为 70 %、78%、83 %、5 6%。在SMVO中 ,胃结肠干、结肠右上静脉扩张比例均为 67%。结论 PSOPS有较特征性的侧支循环静脉开放 ,这些侧支静脉对PSOPS的CT诊断和临床治疗有重要意义。
Objective To investigate the CT signs of pancreatic portal hypertension (PSOPS). Materials and Methods Retrospective analysis of spiral CT findings in 33 patients with PSOPS, with 20 cases without portal vein obstruction in the control. Thirty-seven PSOPS included 27 cases of splenic vein occlusion (SVO) and 6 cases of superior mesenteric vein occlusion (SMVO). Results In the SVO, the rates of gastric left venous, short gastric veins, gastric rectal veins, stomach and intestines were 70%, 78%, 83% and 56%, respectively. In SMVO, the proportion of dry colon of the stomach and colon, and right upper quadrant of the colon were both 67%. Conclusion PSOPS has more characteristic collateral circulation venous opening, these collateral veins PSOPS CT diagnosis and clinical treatment of great significance.