Mitral annular movement velocity parameters during diastole measured by DTI can be used to detect LV diastolic dysfunction in patients with CAD and seems to be more sensitive than the conventional echocardiographic diastolic indexes.

• 舒张功能障碍是检测心肌缺血的敏感指标,应用DTI技术检测二尖瓣环运动速度来评价左室舒张功能,可能较常规超声心动图更为准确。