CT provided fine outlines of compression of the left renal vein between the aorta and the superior mesenteric artery and the abnormal acute angle between them in 13 patients.

• 增强CT扫描横断面可见腹主动脉和肠系膜上动脉之间挤压左肾静脉,矢状面可见肠系膜 上动脉与腹主动脉成锐角,其间的通道变窄。