In 2876 cases, 18 patients had CMB. The total incidence of CMB was0.626%, all these CMB were over the left anterior descending arteries (LAD).

• 在2876例行选择性冠脉造影的人群中；共发现18例冠状动脉肌桥；发生率为0.；626%25；均为左前降支心肌桥。