方法:应用TDI技术观测二尖瓣环心肌舒张早期速度(Em)和舒张晚期速度(Am),应用脉冲多普勒成像(Pulse Doppler Imaging,PDI)技术测量二尖瓣口舒张早期最大血流速率(E)和舒张晚期最大血流速率(A),并计算Em/Am、E/A.
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应用脉冲多普勒成像 Pulse Doppler Imaging ; PDI
脉冲多普勒组织成像 Pulse doppler tissue imaging ; pulsed-wave Doppler tissue imaging
脉冲组织多普勒成像 Pulsed-wave Doppler tissue imaging
脉冲波多普勒组织成像 pulsed wave Doppler tissue imaging
目的：探讨脉冲多普勒组织成像(PW DTI)技术在评价慢性心力衰竭(CHF)左室舒缩功能方面的应用。
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).
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。
Objective: to determine clinical value of pulsed wave Doppler tissue imaging (PW-DTI) in evaluating aortic elasticity in coronary heart disease.
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。
Objective To investigate the characteristics of right ventricular wall motion by the pulsed wave Doppler tissue imaging (PW-DTI).
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