Harowicz Michael R, Shah Amar, Zimmerman Stefan L
Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Johns Hopkins Hospital, 601 North Caroline Street, Room 4223, Baltimore, MD 21287, USA.
Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 300 Community Drive, Manhasset, NY 11030, USA.
Radiol Clin North Am. 2020 Jul;58(4):733-751. doi: 10.1016/j.rcl.2020.02.005. Epub 2020 May 7.
Preoperative assessment with computed tomography (CT) is critical before transcatheter interventions for structural heart disease. CT provides information for device selection, device sizing, and vascular access approach. The interpreting radiologist must have knowledge of appropriate CT protocols, how and where to obtain the important measurements, and know additional imaging characteristics that are important to describe for optimal support of the interventionalist. CT is the modality of choice for pre-operative evaluation in patients undergoing transcatheter aortic valve replacement and left atrial appendage occlusion, and is also useful before transcatheter mitral valve replacement, which is an ongoing area of research.
在进行结构性心脏病的经导管介入治疗之前，利用计算机断层扫描（CT）进行术前评估至关重要。CT可为器械选择、器械尺寸确定和血管入路提供信息。解读CT影像的放射科医生必须了解合适的CT检查方案、如何以及在何处获取重要测量值，并且要知晓对于为介入医生提供最佳支持而言很重要的其他影像特征。对于接受经导管主动脉瓣置换术和左心耳封堵术的患者，CT是术前评估的首选方式，在经导管二尖瓣置换术（这是一个正在研究的领域）之前CT也很有用。
