肝内“假平行管征”的超声研究  

Ultrasonic Study on the Intrahepatic "Pseudo-parallel-channel Sign

作　　者：李杰[1] 马哲[1] 李传福[1] 

机构地区：[1]山东大学齐鲁医院影像中心

出　　处：《中国超声医学杂志》2001年第10期766-768,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的 :研究肝内“假平行管征”的超声表现及其临床意义。方法 :检查正常成人 2 14例 ,观察肝右后下静脉 ( IRHV)的超声表现 ,统计其显示率 ,并对 10例肝动脉分支扩张的患者进行彩色多普勒和频谱多普勒超声检查。结果 :IRHV的显示率为 2 4 % ,在第一肝门水平注入下腔静脉 ,和门静脉右后叶支相伴而行 ,形成“平行管征”。肝内扩张的肝动脉分支在二维超声上与伴行门静脉分支亦构成“平行管征”,但彩色多普勒显示双管内均有血流信号 ,频谱多普勒分别探测到动脉血流频谱和静脉血流频谱。结论 :认识 IRHV和肝内扩张的肝动脉分支有助于鉴别真假“平行管征”,有助于阻塞性黄疸的鉴别诊断。Objective:To investigate the intrahepatic'Pseudo parallel channel sign'.Methods:The inferior right hepatic vein(IRHV)was studied in 214 normal adults with ultrasonography.Ten patients with enlargement of intrahepatic branches of the hepatic artery underwent color and spectral Doppler sonography.Results:IRHV was demonstrated sonographically in 52 cases(24%).It run parallely to the inferior right branch of portal vein.The enlarged intrahepatic artery branches also run parallely to branches of portal vein.Color Doppler blood flow were detected in both lumina.Spectral sonography revealed monophasic blood flow typical for the portal vein in one lumen and pulsatile blood flow typical for a branch of the hepatic artery in the other tubular structure.Both IRHV and enlarged hepatic artery branches showed'parallel channel sign'in two dimensional ultrasound.Conclusions:IRHV and enlarged hepatic artery branches should be awared for avoiding misinterpretation of 'parallel channel sign'.Color Doppelr should be performed in all patients with sonographic sign of 'parallel channel sign'.

关 键 词：平行管征 肝右后下静脉 肝动脉 超声波诊断 肝功能分支扩张 肝硬化 肝癌 

分 类 号：R445.1[医药卫生—影像医学与核医学] R575[医药卫生—诊断学]