多普勒与彩色多普勒体外估测肺动脉压和全肺阻力的研究

USING DOPPLER AND COLOR DOPPLER TO ESTIMATE PULMONARY ARTERY PRESSURE AND TOTAL PULMONARY RESISTANCE

用心导管测得40例左向右分流先天性心脏病的肺动脉收缩压、舒张压、平均压及全肺阻力;同时用多普勒测得RPEP/ET,AT/ET,RPEP/AT,AT;用彩色多普勒测得肺动脉血流亮度与流速,对比计算了他们的相关系数和回归方程。肺动脉收缩压与RPEP/AT的相关系数为0.71,与肺动脉血流速度相关系数为-0.84,可用作体外估测肺动脉压的指标。

PAP and TPR of 40 cases congenital heart disease with left to right shunt were measured by cardiac catheterization.RPEP/ET,AT/ET, RPEP/AT,AT of these 40 cases were measured by Doppler and brightness and pulmonary blood flow velocity were measured by color Doppler.The relationship among the PASP,PADP,PAMP,TPR and item pointed above were caloulated by computer.The relative coeficient between PASP and RPEP/AT is 0.71.The relative coeficient between PASP and pulmonary blood velocity is-0.84.So this two item can be used to estimate the pulmonary artery pressure.