刘兴邦,何立芸,郭丽君

• 1:北京大学第三医院心内科

摘要(Abstract)：

<正>冠状动脉循环系统由三个部分组成:即近端的心外膜冠状动脉,直径从数毫米到500μm,几乎不产生对血流的阻力;中间部分的前小动脉,直径100~500μm,只对血流产生微小的阻力;远端部分的微小动脉,直径<100μm,是血流阻力的主要产生部位。后两者共同组成冠状动脉微循环。冠状动脉微循环的一个重要生理特征是冠状动脉血流储备(coronary flow reserve,CFR),这一概念被定义为冠状动脉微循环接近最大程度扩张时,冠状动脉血流量(coronary blood flow,CBF)或心肌血流

关键词(KeyWords)： 冠状动脉血流储备;冠状动脉微血管疾病

Abstract:

Keywords:

基金项目(Foundation): 首都卫生发展科研专项项目(2014-2-4093)

作者(Author): 刘兴邦,何立芸,郭丽君

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