能量多普勒显像和彩色多普勒血流显像对肝癌并发门脉栓子的对比研究  

The Role of CDFI and PDI in Demonstration of the Portal Vein Thrombosis in Patients with Hepatic Carcinoma

作　　者：张梅[1] 简文豪[1] 丁桂春[1] 李亚非[1] 吴爱民[1] 

机构地区：[1]北京市解放军北京军区总医院超声科

出　　处：《中国超声医学杂志》1998年第9期20-21,共2页Chinese Journal of Ultrasound in Medicine

摘　　要：本文应用能量多普勒显像（ＰＤＩ）及彩色多普勒血流显像（ＣＤＦＩ）探查了２９例肝癌并发门脉栓子的患者，结果示：在增益、脉冲重复频率及壁滤波相同的情况下，ＰＤＩ对门脉不同状态的血流信号：血流束变细、充盈缺损或线状血流束的显示较ＣＤＦＩ清晰，特别是血流束的边界。在降低脉冲重复频率以及增益的情况下，可使部分间断的血流信号连接起来，并能显示ＣＤＦＩ所不能显示的细小血流信号。由于ＰＤＩ不能显示血流的方向和速度，故对门脉内返流血流。To compare the useful value of power Doppler imaging(PDI)and color Doppler flow imaging(CDFI) in detection of hepatic carcinoma with portal vein thrombosis(PVT),29 patients were examined with both technics.Under the same condition of PRF,wall filter and power gain,PV abnormal blood flow showed with PDI was more clearly than with CDFI,especially the border between color blood signal and PV wall or thrombus.In lower PRF.PDI showed more clear continuous flow than CDFI.However,PDI can not indicate the collateral circulation,the regurgitation and the abnomal status of the intrahepatic arteries blood flow,becavse its inability to display the blood flow direction and velocity.

关 键 词：肝癌 门脉栓子 彩超 CDFI 并发症 

分 类 号：R735.704[医药卫生—肿瘤]