Methods: 1. 285 patients with CHD who were finally diagnosed by CAG were selected and their results of CAG were analyzed, which involved number, severity, form and Gensini score of coronary artery lesion.

• 资料和方法：1、选择经CAG确诊的CHD患者285例，分析其CAG结果，包括冠状动脉病变程度、病变形态、病变支数、Gensini积分。