胰源性区域性门脉高压CT成像的临床应用价值

目的探讨胰源性区域性门静脉高压的CT门静脉成像的临床应用价值。方法前瞻性选择70例胃镜提示胃底静脉曲张的患者，进行CT增强扫描及后处理，分析其中28例胰源性门静脉高压患者的CT表现。结果在28例胰源性门静脉高压患者中，显示GEV扩张24例，CGV扩张21例，SGV扩张23例，发生胃肾分流4例，图像重建后可以清楚显示各血管的走行及曲张程度。结论CT门静脉成像可以连续的显示血管走行及其毗邻关系，多角度显示侧支循环血管，有助于指导术前分析和评估，对胰源性区域性门静脉高压具有重要临床诊断价值。

Objective To explore the clinical value of CTI^V m the alagnosls oi F^tm.t^a~v~ ~ r hypertension. Methods ACT scanner was used to proceed contrast enhanced abdominal scanning and image post---processing techniques in 70 patients prospective selected with bleeding gastric varices , 28 patients of all were analyzed. Results In the 28 patients with pancreatogenic segmental portal hypertension, gastroepiploic vein in 24 patients, coronal gastric vein in 21 patients , short gastric vein in 23 patients, spontaneous gastrorenal shunt in 4 patients. The course and extent of every varicose vessel could be displayed directly by image post-processing techniques. Conclusion The portal venography of CT can clearly depict the anatomic characteristics of the collaterals and enable continuously trace the vascular structures, and it＇ s very effective for displaying the collateral circulation of portal hypertension various location, which is very significant in clinical practice.