Methods: Left ventricular ejection fraction(LVEF), mitral inflow peak velocity(E,A), and mitral annular velocity(Sa, Ea, Aa) were measured with DTI PWD in 20 patients with coronary heart disease(CHD) and 20 normal subjects.

• 方法 :测量 2 0例正常人和 2 0例冠心病患者左室射血分数 (L VEF) ,二尖瓣口舒张期血流频谱 E波、A波和二尖瓣环频谱 Sa波、Ea波、Aa波的峰值速度。