Objective To investigate the characteristics of right ventricular wall motion by the pulsedwaveDoppler tissue imaging (PW-DTI).
目的应用脉冲多普勒组织成像（PW DTI）分析正常右室心肌舒缩运动的特点。
2
Objective: to determine clinical value of pulsedwaveDoppler tissue imaging (PW-DTI) in evaluating aortic elasticity in coronary heart disease.
目的：探讨脉冲波多普勒组织成像(PW - DTI)在评价冠心病患者主动脉弹性时的应用价值。
3
Objective to investigate the application of pulsed-waveDoppler tissue imaging (PW-DTI) in evaluating left ventricular systolic and diastolic function in patients with chronic heart failure (CHF).