前瞻性心电图（ECG）触发冠状动脉CT血管造影：有创冠状动脉造影的一种有效替代法
Review Article

前瞻性心电图（ECG）触发冠状动脉CT血管造影：有创冠状动脉造影的一种有效替代法

Zhonghua Sun

Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, Western Australia, Australia

Corresponding to: Zhonghua Sun. Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, GPO Box, U1987, Perth, Western Australia 6845, Australia.

摘要：尽管CT造影对冠状动脉疾病贡献巨大，但鉴于辐射会不容忽视地诱发恶性肿瘤，故有文献对造影相关的辐射量问题颇为担忧。现在，临床已采取各式各样减小辐射剂量的措施，部分措施效果显著。有报告显示，这些措施中，前瞻性心电图（ECG）触发冠状动脉CT血管造影能较为准确地诊断出冠心病，且成像质量与回顾性心电门控技术相当，并显著降低了辐射剂量。而这种前瞻性心电图（ECG）触发技术的良好表现，是建立在严格的筛选标准及细致的患者准备之上的。本文以辐射量减少为中心，对前瞻性心电图（ECG）触发法冠状动脉CT血管造影进行了回顾；对辐射剂量检测方法进行了讨论，以更为精确地对剂量进行测量；并探讨了前瞻性心电图（ECG）触发法冠状动脉CT血管造影对于不同心律患者的诊断价值；最后，强调了这一检测方法的现状及未来的发展方向。

Keywords: Coronary artery disease; coronary CT angiography; image quality; prospective ECG-triggering; radiation dose

Submitted Jan 27, 2012. Accepted for publication Feb 03, 2012.

doi: 10.3978/j.issn.2223-3652.2012.02.04

Cite this article as: Sun Z. Coronary CT angiography with prospective ECG-triggering: an effective alternative to invasive coronary angiography. Cardiovasc Diagn Ther 2012;2(1):28-37. doi: 10.3978/j.issn.2223-3652.2012.02.04

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