多层螺旋CT多期动态扫描结合CT血管造影诊断单纯性肝动静脉瘘  

MSCT multi-phase dynamic contrast-enhanced scanning and CTA in the diagnosis of pure hepatic arterio-venous fistula

作　　者：顾乐锋 陈伟建[2] 郑汉朋[1] 周海生[1] 邱乾德[1] 

机构地区：[1]温州医科大学附属乐清医院(乐清市人民医院)放射科,乐清325600 [2]温州医科大学附属第一医院放射科

出　　处：《中华肝胆外科杂志》2015年第6期369-372,共4页Chinese Journal of Hepatobiliary Surgery

摘　　要：目的 探讨单纯性肝动静脉瘘（AVF）的多层螺旋CT（MSCT）动态增强结合CT血管造影（CTA）的表现特征.方法 回顾性分析100例单纯性肝AVF患者的MSCT动态增强结合CTA表现.结果 100例增强动脉期均发现与单纯性肝AVF相关的阳性征象.其中周围型89例,中央型11例,共128个病灶.周围型表现为：（1）肝动脉期病灶所在肝叶边缘出现楔形或片状强化区,呈“晕征”68例,其中门静脉早显56例;（2）肝动脉期门静脉分支呈线条状显影与肝动脉伴行,即“轨道征”21例.中央型表现为肝动脉期门静脉（或者肝静脉）主干和/或左右第1级分支见提前显影.结论 MSCT动态增强扫描及CTA对单纯性肝AVF的诊断具有重要价值.Objective To study the radiological features of dynamic enhanced multi-slice spiral CT （MSCT） and CTA in pure hepatic arterio-venous fistula （AVF）.Methods The radiological features of MSCT imaging and CTA of 100 patients with pure hepatic AVF were retrospectively analyzed.Results Positive signs on the arterial phase were detected in 100 patients with pure hepatic AVF.In 89 patients,they were the peripheral type and in 11 patients they were the central type.There were 128 lesions in the 100 patients.In the peripheral type,the features were （1） in the arterial phase,the lesions appeared as a wedged or a patchy enhancement area at the edge of the liver,showing a ＂halo sign＂ in 68 patients.In 56 patients,the PV was shown also in the early arterial phase;（2） in the arterial phase,a ＂ railway track sign＂ was shown in 21 patients as a result of a portal vein branch showing right next to a hepatic arterial branch.In the central type and in the arterial phase,the main portal vein （or the hepatic vein） and the left/right branches of the PV （or the HV） were shown.Conclusion MSCT and CTA were useful in the diagnosis of pure hepatic AVF.

关 键 词：肝脏 动静脉瘘 体层摄影术 X线计算机 

分 类 号：R735.7[医药卫生—肿瘤]