原发性肝癌合并门静脉癌栓的多层螺旋CT诊断  

MSCT Diagnosis of Portal Vein Tumor Thrombosis in Primary Hepatocellular Carcinoma

作　　者：陈勇[1] 高知玲[1] 李海燕[1] 赵丹[1] 祁光蕊[1] 侯登华[1] 蔡磊[1] 

机构地区：[1]宁夏医科大学附属医院放射科,银川750004

出　　处：《宁夏医科大学学报》2009年第4期438-440,共3页Journal of Ningxia Medical University

基　　金：宁夏回族自治区科技厅科技攻关项目(05GG-20707)

摘　　要：目的探讨门静脉癌栓(PVTT)的多层螺旋CT(MSCT)特征,评价MSCT在PVTT诊断中的作用。方法回顾分析43例PVTT病变患者的MSCT资料,采用MSCT平扫及增强扫描,应用容积重建(VR)、多层面重组(MPR)、最大密度投影(MIP)等方法对门静脉及其主要分支进行三维重建分析。结果本组癌栓Ⅰ型5例、Ⅱ型28例、Ⅲ型7例、Ⅳ型3例;CT平扫显示门静脉扩张、增粗,腔内癌栓呈低密度或高低混杂密度,增强扫描动脉期26例癌栓出现强化,17例癌栓不强化;8例同时伴有门静脉海绵样变(CTPV);9例伴有肝动脉门静脉瘘(APS);21例出现肝脏血流灌注异常。结论MSCT能够明确PVTT诊断及分型,对肝癌的综合治疗及预后评价具有重要意义。Objective To investigate the Muhislice spiral CT （MSCT） features and mechanisms of portal vein tumor thrombosis in PHC. Methods MSCT finding were retrospectively analyzed. Plain CT scans and contrast enhanced were performed by MSCT. The typing and imagination features of PVTT were analyzed by Three-dimensional reconstruction. Results PVTT were divided into Ⅰ - Ⅳ typings, type 1 5 cases, type Ⅱ 28 cases, type Ⅲ 7 cas- es,type Ⅳ 3 cases. In the plain scans MSCT image cases showed dilatation of portal vein and low or （and） high density, portal vein tumor thrombosis were contrast enhanced in 26 cases and non contrast enhanced in 17 cases. Of 43 cases,8 cases accompanied CTPV,9 cases APS and 21 cases abnormality perfusion. Conclusion The diagnosis and classification of PVTT is significant for treatment and predicting the prognosis of the patients.

关 键 词：门静脉癌栓 体层摄影术 X线计算机 

分 类 号：R735.7[医药卫生—肿瘤]