下腔静脉先天畸形MSCT表现及临床意义

发布时间：2018-02-28 14:31

本文关键词： 腔静脉下畸形体层摄影术 X线计算机　出处：《中国医学影像技术》2015年12期 　论文类型：期刊论文

【摘要】：目的探讨下腔静脉(IVC)先天畸形的MSCT表现及其临床意义。方法回顾性分析960例患者中48例IVC先天畸形的腹部增强CT影像资料,观察MSCT动脉期和静脉期IVC后处理图像及其属支的解剖结构。结果 IVC先天畸形的发生率为5.00%(48/960)。左IVC 4例(4/48,8.33%),CT示肾下段IVC位于腹主动脉左侧;双IVC 5例(5/48,10.42%),CT示腹主动脉两侧上行的IVC;主动脉后型左肾静脉12例(12/48,25.00%),CT示左肾静脉走行于腹主动脉后方;环主动脉型左肾静脉26例(26/48,54.17%),CT示左肾静脉分两支环绕腹主动脉,在不同水平分别注入IVC;IVC伴奇静脉延续畸形1例(1/48,2.08%),增强CT示IVC向上延续为奇静脉,肝静脉直接回流至右心房。结论MSCT可清晰、直观地显示IVC畸形,对诊断与IVC有关的疾病和防止术中血管损伤有重要临床意义。
[Abstract]:Objective to investigate the MSCT features of congenital malformation of inferior vena cava (IVC) and its clinical significance. Results the incidence of congenital malformation of IVC was 5.00% 48 / 9600.4 cases of left IVC (4 / 48 / 8.33) showed that the lower renal IVC was located on the left side of the abdominal aorta. The CT scans of 5 / 48-10.42 cases of double IVC showed the ascendant of abdominal aorta; 12 cases of posterior left renal vein of aorta showed left renal vein running behind the abdominal aorta; 26 cases of annular aortic type of left renal vein showed that the left renal vein was divided into two branches surrounding the abdominal aorta, and the left renal vein was divided into two branches around the abdominal aorta, and the left renal vein was divided into two branches around the abdominal aorta, and the left renal vein was divided into two branches around the abdominal aorta. One case of IVC IVC with azygos vein continuation malformation was injected at different levels. Contrast enhanced CT showed that IVC continued upward into azygos vein and hepatic vein returned directly to right atrium. Conclusion MSCT can clearly and intuitively display IVC malformation. It has important clinical significance for diagnosis of IVC related diseases and prevention of intraoperative vascular injury.
【作者单位】：上海市嘉定区南翔医院放射科;上海市同济医院影像科;
【基金】：国家自然科学基金(81271552)
【分类号】：R543.6;R816.2

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