肝硬化肝内门-体循环分流的MSCT诊断  

Multi-slice CT Diagnosis of Intrahepatic Portosystemic Shunts in Patients with Cirrhosis

作　　者：于红[1] 李惠民[1] 刘光华[1] 陶志伟[1] 胡振平 

机构地区：[1]第二军医大学长征医院影像科,200003 [2]浙江省庆元县人民医院CT室

出　　处：《中国医学计算机成像杂志》2004年第3期175-177,共3页Chinese Computed Medical Imaging

摘　　要：目的分析肝硬化门静脉高压时肝内门-体循环交通的多层螺旋CT(MSCT)成像表现。材料和方法回顾分析13例肝硬化门静脉高压患者肝内门-体循环交通,描述其横断面及三维成像特点。扫描采用准直2.5mm或5mm,非离子型碘剂90ml,3ml/s,延迟55～60s扫描;重建方法包括最大密度投影(MIP)和容积显示(VR)。结果门脉左支经肝左内叶与副脐静脉交通11例,5例伴有典型“水母征”腹壁静脉曲张;门脉右支经右肾静脉与下腔静脉交通2例。VR结合横断面源图像很好地显示了这种肝内门-体循环交通。结论肝硬化肝内门-体循环分流并不常见,MSCT成像可以直观而详细地显示分流特征。Purpose:To evaluate the Multi-slice CT(MSCT)features of intrahepatic portosystemic shunts(IPSS)in patients with cirrhosis.Materials and Methods:The axial and3D images of IPSS in13cases of cirˉrhotic patients with portal hypertension were retrospectively analyzed.The portal venous phase(55～60sec after initiation of injection)scan were undertaken with2.5/5.0mm collimation and90ml contrast medium at injection rate of3.0ml/s.Both maximum intensity projection(MIP)and volume rendering(VR)were applied.Results:The IPSS were localized between the left portal vein and the umbilical vein in11cases,running within the left hepatic parenchyma and draining into the paraumbilical vein.The tortuous veins in the anterior abdominal wall in5cases were shown as the typical jellyfish sign.Other2IPSS were localized between the right portal vein and the inferior vena cava.Both VR and the original axial images displayed the IPSS in all patients.Conclusion:The IPSS uncommonly existed in patients with cirrhosis,and MSCT could discover them in detail.

关 键 词：肝硬化 门-体循环 MSCT 腔静脉系统 门静脉 肝内型 

分 类 号：R816.5[医药卫生—放射医学]