Chronic total occlusion (CTO) of coronary arteries is a common finding in patients with known or suspected coronary artery disease (CAD). Although tremendous advances have been made in the interventional treatment of CTOs over the past decade, correct patient selection remains an important parameter for achieving optimal results. Non-invasive imaging can make a valuable contribution. Ischemia and viability, two major factors in this regard, can be displayed using echocardiography, single-photon emission tomography, positron emission tomography, computed tomography, and cardiac magnetic resonance imaging. Each has its own strengths and weaknesses. Although most have been studied in patients with CAD in general, there is an increasing number of studies with positive preselectional factors for patients with CTOs. The aim of this review is to provide a structured overview of the current state of pre-interventional imaging for CTOs.

中文翻译：

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冠状动脉慢性完全闭塞患者的无创成像——介入医生需要什么才能获得成功？

冠状动脉慢性完全闭塞 (CTO) 是已知或疑似冠状动脉疾病 (CAD) 患者的常见症状。尽管过去十年中 CTO 介入治疗取得了巨大进步，但正确的患者选择仍然是获得最佳结果的重要参数。非侵入性成像可以做出宝贵的贡献。缺血和活力是这方面的两个主要因素，可以使用超声心动图、单光子发射断层扫描、正电子发射断层扫描、计算机断层扫描和心脏磁共振成像来显示。每个都有自己的优点和缺点。尽管大多数研究都是在一般 CAD 患者中进行的，但越来越多的研究对 CTO 患者进行了积极的预选因素。本次综述的目的是为 CTO 提供介入前成像现状的结构化概述。