Shapir J, Rubin J
J Comput Assist Tomogr. 1984 Oct;8(5):877-80. doi: 10.1097/00004728-198410000-00012.
The CT appearance of the inferior mesenteric vein (IMV) was studied. It can best be identified by its location behind or to the left of the duodenojejunal flexure. Superiorly, it drains into either the splenic vein, superior mesenteric vein, or the splenoportal junction. Inferiorly, it continues to the left of the fourth stage of the duodenum, lying in the left anterior pararenal space. Occasionally, the left colic vein is seen draining into the IMV. In 14 normal cases the diameter of the IMV, measured behind or to the left of the duodenojejunal flexure, was 3-6 mm with a mean of 3.9 mm and a standard deviation of 0.83 mm. In a case of portal hypertension it measured 9 mm. Thus, the IMV can be used to suggest portal hypertension.
对肠系膜下静脉（IMV）的CT表现进行了研究。通过其在十二指肠空肠曲后方或左侧的位置可最佳识别。在上方，它汇入脾静脉、肠系膜上静脉或脾门汇合处。在下方，它在十二指肠第四段左侧延续，位于左肾旁前间隙。偶尔可见左结肠静脉汇入IMV。在14例正常病例中，在十二指肠空肠曲后方或左侧测量的IMV直径为3 - 6mm，平均为3.9mm，标准差为0.83mm。在一例门静脉高压病例中，其直径为9mm。因此，IMV可用于提示门静脉高压。
