门静脉高压静脉曲张的螺旋CT表现

目的评价门静脉高压静脉曲张的螺旋CT表现.材料和方法回顾性分析47例经螺旋CT平扫及双期增强扫描诊断为门静脉高压静脉曲张的CT表现,并对其发生部位作了统计.结果增强扫描门静脉期扭曲扩张的静脉表现为曲线条、团块状或结节状高密度影.其中食管下端粘膜下及食管旁静脉曲张最常见(发生率为61.7%),以下依次为胃周静脉曲张(36.2%),脾门附近静脉曲张(23.4%),脐旁静脉曲张(21.3%),肾及肾上腺静脉曲张(12.8%),腹膜后一椎旁静脉曲张(4.3%),门静脉海绵状变性(4.3%).结论螺旋CT增强扫描门静脉期静脉曲张一目了然,结合其特定的解剖部位,CT能作出定性诊断并判断其程度.

Portal Hypertension:spiral CT Appearance of the Varices

Purpose: To evaluate spiral CT appearance of the varices in portal hypertension. Materials and methods: The appearances of the plain scan and two-phase enhanced spiral CT scan of 47 cases with varices of portal hypertension were analyzed retrospectively, the varice in all parts were also calculated. Results: Enhanced spiral CT scans showed that hyperdense structures in varices were easily distingunished from other nonvascular structures and the hyperdense areas were curvilineal ,conglomerate or nodular in shape .The esophageal and paraesophageal varices were most frequent present (61.7%), followed by the gastric varices (36.2%), splenic varices (23.4%), paraumbilical vein dilatation (21.3%), renal and suprarenal vein dilatation (12.8%), retroperitoneal paraspinal collaterals(4.3%)and portal vein cavernous transformation (4.3%)in portal hepertension. Conclusion: Enhanced spiral CT scans at portal venous phase showed that varices were easily depicted, combinated its special anatomy location,CT can easily depict variceal collateral Vessels,which are diagnosed qualitatively and quantitatively.