多层螺旋CT在经导管主动脉瓣植入术前评估中的研究进展  

Preoperative Evaluation of Transcatheter Aortic Valve Implantation with Multi-detector Computed Tomography

作　　者：蒲华霞 彭礼清[1] PU Huaxia;PENG Liqing(Department of Radiology,West China of Sichuan University,Chengdu 610041,Sichuan,China)

机构地区：[1]四川大学华西医院放射科

出　　处：《心血管病学进展》2019年第9期1278-1281,共4页Advances in Cardiovascular Diseases

基　　金：国家自然科学基金资助项目(81601462);四川省科技厅支撑计划项目(2016FZ0107);四川省卫生和计划生育委员会科研课题(16ZD013)

摘　　要：经导管主动脉瓣植入术(TAVI)是外科高风险重度主动脉瓣狭窄的最重要的替代治疗手段。在TAVI术前,多层螺旋CT在患者筛选、选择最佳人工瓣膜型号以及规划手术入路方面起着重要作用。多层螺旋CT能在三维重建后精确评价主动脉瓣环、主动脉根部及毗邻结构、入路血管和预测最佳造影投射角度,可有效降低TAVI术后瓣周漏、冠状动脉开口阻塞及入路血管并发症等的发生率。现就多层螺旋CT在TAVI术前评估中的价值、优势及不足做一全面综述。Transcatheter aortic valve implantation(TAVI)is the most important alternative treatment for surgical high-risk severe aortic stenosis.Multi-detector computed tomography(MDCT)plays an important role in the screening of eligible patients,in choosing the optimal prosthesis size and planning the access route before TAVI.MDCT can accurately evaluate the aortic annulus,the aortic root and its adjacent structures,the vascular access route,and predict the optimal fluoroscopic projection angle by 3D volume-rendered reconstruction,which can effectively reduce the incidence of paravalvular leakage,coronary ostium occlusion and vascular complications of TAVI.We comprehensively review the values,advantages and disadvantages of MDCT in the preoperative evaluation in TAVI.

关 键 词：经导管主动脉瓣植入术 主动脉瓣重度狭窄 多层螺旋CT 

分 类 号：R654.2[医药卫生—外科学] R816.2[医药卫生—临床医学]