二尖瓣返流连续多普勒频谱为2束返流共同形成的叠加频谱；
The frequency spectrum of continuous wave Doppler composed of two merged regurgitant jets.
方法用彩色多普勒超声观察心腔和肺动脉内的血流颜色变化，并用连续多普勒超声测量肺动脉内血流速度。
Methods Using color Doppler flow imaging to detect the pulmonary blood color and continuous wave Doppler echocardiogram to measure the pulmonary flow velocity.
目的探讨连续波多普勒超声在评估二尖瓣返流患者的肺动脉楔压中的作用。
To confirm the utility of continuous wave Doppler echocardiography in assessing pulmonary artery wedge pressure in patients with mitral regurgitation.
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