肝癌门静脉癌栓的超声诊断

目的:探讨对门静脉癌栓的超声诊断。方法:回顾性分析肝癌伴门静脉癌栓患者62例的超声检查资料,重点观察肝癌的部位及门静脉内部回声、血流特点。结果:肝癌并门静脉癌栓发生率37%,好发部位依次为主干、左支、右支,回声特点厦形态均为低回声、内部回声欠均匀,84%的充满型癌栓所在支血流完全中断,16%充满型癌栓可见不规则线状或星点状肝门脉血流信号。9例孤立型癌栓附着处血流色彩充盈缺损,癌栓侧壁与管腔之间的空隙血流柬变细,流速相对增快,肝动脉血流加快,与CT对比敏感性高。结论:超声是门脉癌栓的良好检查方法。

Objective：To discuss the ultrasonographic diagnosis of tumor thrombosis in portal vein.Methods：The data of 62 cases of hepatocellular carcinoma with tumor thrombosis in portal vein were retrospectively analyzed.Attention was given to the part of hepatocellular carcinoma and the intemal echo.blood fbw characteristics of portal vein.Results：The incidence of hepatocellular carcinoma with tumor thrombosis in portal vein was 37%.The frequent sites were main portaI vein,Ieft portal vein branch.right portal vein branch.The echo property and the forms were Iower echo and lack of uniform.And the blood flow of the branch with cancerous embolism of 84%was wholly blocked,but only 16%of itcan be shown irregular Iinear or star punctuation blood flow in channels and vessels of hepatic porta1.Among 9 caSeS,the blood flow color was filling defect in tumor thrombosis attachment,the blood flow was thinner between the sidewall of tumor thrombosis and the lumen.the velocity of blood flow became faster comparatively,the blood flow of hepatic artery ran faster and the sensitivity was higher than CT.Conclusion：uhrasonography is a good way to diagnose the portal vein tumor thrombosis.