Purpose: This study was designed to evaluate left ventricular systolic function using Doppler tissue imaging (DTI) in patients with hypertrophic cardiomyopathy (HCM).

• 目的:应用多普勒组织成像脉冲速度模式测量二尖瓣环收缩速度,以评价肥厚型心肌病患者左室收缩功能的改变。