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本文讨论如何应用肺泡压与肺阻抗容积图波辐的关系来对肺动脉压力和肺血管顺应性进行无创伤性的测量。提出了应用压力——波辐关系测定肺血管顺应性的方法,指出青柳卓雄外推法忽略肺血管弹性回缩压,这很可能是外推法所得的肺动脉压偏低的原因。本文还对肺阻抗容积图法测定肺动脉压力和肺血管顺应性的临床结果进行了初步的分析,指出了今后深入研究的方向。
This article discusses how to use noninvasive measurements of pulmonary artery pressure and pulmonary vascular compliance using the relationship between pulmonary pressure and pulmonary impedance volume wave. The method of applying pressure-wave relation to determine pulmonary vascular compliance was proposed. It was pointed out that AQL extrapolation neglected pulmonary vascular elastic systolic pressure, which is probably the reason that extrapolation resulted in low pulmonary arterial pressure. The paper also analyzes the clinical results of pulmonary impedance voltammetry in measuring pulmonary artery pressure and pulmonary vascular compliance, and points out the direction of further study.