MRA在腹部静脉的应用  

MR Angiography in the Abdominal Veins

作　　者：陈祖望[1] 周康荣[1] 杨军[1] 颜志平[1] 杨培强[1] 沈继章[1] 陈财忠[1] 施伟斌[1] 

机构地区：[1]上海医科大学中山医院放射科

出　　处：《临床放射学杂志》1997年第4期220-223,共4页Journal of Clinical Radiology

基　　金：国家自然科学基金

摘　　要：目的：评价常规ＭＲＡ和动态增强ＭＲＡ在腹部静脉检查中的价值。材料与方法：腹部静脉ＭＲＡ共５７例行５９人次检查。包括２ＤＴＯＦ５１次，２ＤＰＣ１９次，动态增强ＭＲＡ３０次（其中２Ｄ动态增强１０次，３Ｄ动态增强２０次）。５７例中门脉高压者１８例，布加氏综合征８例，门腔静脉分流术前或术后检查６例，原发性和转移性肝癌９例，其他病变６例，正常组１０例。结果：本组ＭＲＡ表现分别为门脉增粗和静脉曲张；下腔静脉狭窄、闭塞或血栓形成；门腔静脉分流术后吻合口血栓形成以及肝癌患者门脉癌栓形成等。并对２ＤＴＯＦ，２Ｄ动态增强及３Ｄ动态增强显示门静脉分支级数进行统计学分析，结果表明３Ｄ动态增强最好。对３Ｄ动态增强薄层和厚层扫描２组门脉分支级数显示率也进行了统计学分析，结果表明薄层效果明显好。结论：ＭＲＡ技术在腹部静脉系统成像相当有价值，具有很大的潜力。在２ＤＴＯＦ，２Ｄ动态增强和３Ｄ动态增强３种技术中。Objective: To evaluate the value of MRA (magnetic resonance angiography) and dynamic contrast enhanced MRA (DCE MRA) in abdominal veins.Materials and Methods:Among 59 examinations (57 cases) of MRA in abdominal veins performed, there were 51 of 2D TOF (time of flight), 19 of 2D PC (phase contrast), 30 of dynamic contrast enhanced MRA (DCE MRA) (10 of 2D DCE MRA and 20 of 3D DCE MRA). 57 cases were as follows: Portal hypertension (n=18), Budd Chiari sydrome (n=8), portal caval shunt surgery (n=6), primary and secondary liver cancer (n=9), other diseases (n=6) and control group (n=10) in our study.Results:The appearances of MRA in our study were enlarged portal veins and varices; narrowing and occlusion or thrombosis of inferior vena cava; the thrombosis in anastomosis after shunting and portal venous thrombosis in heptocellular carcinoma. The demonstration rates of various degrees of branches of portal veins in 2D TOF, 2D and 3D DCE MRA were compared with one another. The result showed that 3D DCE was the best. The demonstration rates of portal veins branches in two groups of 3D DCE MRA with different slice thickness were also compared, showing that the thin slice was better.Conclusion: MRA is a very valuable and useful technique in abdominal venous system imaging. Among 2D TOF, 2D and 3D DCE MRA, 3D DCE is the best one to obsrve abdominal veins.

关 键 词：NMR 血管造影 腹部静脉 成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]