So it may be a simple and effective method to evaluate the function of left heart according to the characteristics of systolicwave complex.
从而认为，依据心尖搏动图收缩波的形态特征，来评判左心功能，是简便而行之有效的方法。
2
Objective: To observe regional systolic and diastolic function of left ventricular myocardium in dilated cardiomyopathy patients with narrow QRS wave by quantitative tissue velocity imaging (QTVI) .
目的：超声评价窄QRS波的扩张型心肌病患者左室局部心肌的收缩和舒张功能。
3
Objective to investigate the application of pulsed-wave Doppler tissue imaging (PW-DTI) in evaluating left ventricular systolic and diastolic function in patients with chronic heart failure (CHF).