螺旋CT对区域性门静脉高压的诊断及临床价值

目的:探讨多层螺旋CT(MSCT)对区域性门静脉高压(RPH)的诊断及临床指导价值。方法:对21例区域性门静脉高压患者使用6排多层螺旋CT机行上下腹部CT增强扫描,分析脾静脉闭塞后侧支循环开放及曲张情况。结果:脾静脉局部突然中断、明显狭窄或不显影12例,主要的两个侧支循环通道有胃短静脉-胃底静脉丛-胃冠状静脉和胃网膜静脉-胃结肠干-肠系膜上静脉,在螺旋CT上表现出特征性的分布和走行。结论:MSCT增强多排螺旋CT能清晰显示RPH患者脾静脉闭塞后侧支循环开放及曲张情况,对于RPH的诊断和指导临床治疗具有重要的价值。

Diagnostic Value and Clinical Significance of Multi-slice CT in Regional Portal Hypertension

Objective:To investigate the value of multi-slice CT(MSCT) in clinical significance and imaging diagnosis of regional portal hypertension(RPH).Methods:A 6-detector row spiral CT scanner was used to perform contrast enhanced abdominal scanning in 21 patients with RPH.Analysed splenic vein occlusion and collateral vessels openned varicose condition.Results:Splenic vein showed occlusioned or interrupted in 12 cases.The two predominant collateral pathways of RPH were:short gastric veins →fundic veins→gastric coronary vein and gastroepiploic veins→gastrocolonic trunk→superior mesenteric vein.These collateral veins usually showed characteristic anatomic distributions and pathways on spiral CT.Conclusion:In patients with RPH,MSCT is very effective for displaying the splenic vein occlusion and collateral vessels open varicose condition,which is very significant in clinical practice.