门静脉癌栓肝脏血供变更的CT表现  

CT Appearances of Liver Hemodynamic Change in Patients with Tumor Embolismus in Portal Vein

作　　者：马淑敏[1] 温大勇[1] 田顺典[2] 

机构地区：[1]宁夏银川市第一人民医院CT室,宁夏银川750001 [2]宁夏医学院附属医院放射科

出　　处：《实用放射学杂志》2001年第8期575-576,共2页Journal of Practical Radiology

摘　　要：目的　探讨门静脉癌栓血流动力学变化及肝脏周边区动脉期异常强化的发生机制。方法　回顾分析 3 0例经CT和血管造影证实的中晚期肝癌 2 8例 ,转移癌 2例同时并发门静脉癌栓形成的影像学资料。结果　 3 0例门静脉癌栓中在主干、左、右支同时存在的有 18例 ,主干癌栓 3例 ,左、右支癌栓 9例。门静脉海绵样变 2 6例 ,CT表现为肝门、肝裂、胆囊窝增粗成团的血管影。在3 0例中 ,肝脏周边区动脉期异常强化 10例。结论　门静脉癌栓后侧枝循环形成海绵样变 ,仍能维持肝脏的血供 ,肝脏周边区动脉期异常强化提示肝脏血供变更 ,门静脉血供减少 ,动脉血供代偿增加。Objective To study the hemodynamic change and the machanism of anomalous enhancement of hepatic peripheral area in arterial phase in patients with tumor embolismus in portal vein.Methods The imaging data in 30 cases of hepatic carcinoma (hepatic cell carcinoma in 28 cases and metastatic carcinoma in 2 cases)with tumor embolismus in portal vein confirmed by CT and angiography were reviewed and analysed.Results The tumor embolism were formed in portal stem vein is 3 cases,portal stem vein right and left branches in 18 cases,and right and left branches in 9 cases.The cavernous transformation of portal vein was in 26 cases.The blood vessel grouped and thickened in hepatic portal,the fissure of liver and fossa of gallblader were showed on CT.The hepatic peripheral area was enhanced in arterial phase in 10 cases.Conclusion The collateral branch underwent cavernous transformation after formation of tumor embolism in portal vein the liver blood supply is still maintain.The hepatic peripheral area in arterial phase are anomalously enhanced,it is suggested that the portal vein blood supply is reduction and the arterial blood supply is complemently increased.

关 键 词：海绵样变 体层摄影 X线计算机 肝肿瘤 门静脉癌栓 CT诊断 

分 类 号：R735.7[医药卫生—肿瘤] R730.44[医药卫生—临床医学]