Purpose To assess the accuracy of Doppler Audio\|Signal Processing System(DASPS) in noninvasive auto\|estimation of pulmonary artery systolic pressure (PASP),mean pressure (PAMP).

• 目的评价不同干预状态下多普勒超声音频处理系统(DASPS)无创自动估测肺动脉收缩压(PASP)、平均压(PAMP)的准确性。