摘要引言闭合性脑血管损伤(BCVI)可导致神经功能障碍,且发病率和死亡率均很高。CT血管成像(CTA)广泛应用于BCVI的诊断,可能使病人接受不必要的辐射。本研究旨在探讨行CTA检查的BCVI的患病率,并确定其高危因素。材料与方法经医院伦理委员会批准,根据入组标准,从我院创伤数据库中筛选出2007—2010年间行CTA检查的病人,以诊断BCVI。回顾性分析CTA影像以确定是否有BCVI(包 Abstract INTRODUCTION Closed-vessel injury (BCVI) leads to neurological dysfunction with high morbidity and mortality. CT angiography (CTA) is widely used in the diagnosis of BCVI, which may allow patients to receive unnecessary radiation. The aim of this study was to investigate the prevalence of BCVI with CTA and to identify the risk factors for BCVI. Materials and Methods Approved by the hospital ethics committee, according to the inclusion criteria, patients who had CTA examination from 2007 to 2010 were screened from our hospital trauma database to diagnose BCVI. CTA images were retrospectively analyzed to determine if BCVI was present