Objective To assess the accuracy of Doppler audio-signal processing system(DASPS) in noninvasive automatic estimation of pulmonary vascular resistance (PVR).

目的评价多普勒超声音频处理系统（DASPS）自动定量估测肺血管阻力（PVR ）的准确性。

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Whereas mean pulmonary artery pressure (MPAP) and pulmonary vascular resistance (PVR) were significantly higher compared with the control group.

平均肺动脉压（MPAP）、肺血管阻力（PVR）均高于对照组；

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Pulmonary artery hypertension (PAH) is a combination of factors caused abnormal pulmonary hemodynamics. Pulmonary vascular resistance (PVR) progressive as clinical features of PAH.

肺动脉高压(PAH)是多种因素引起的肺血流动力学异常，以肺血管阻力进行性升高为临床特征的一组疾病。

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