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本文总结报道了186例正常人、肺气肿、可疑肺心病、肺心病患者的肺阻抗容积图、右心收缩时间间期的波形、胸腔单位面积的基础阻抗,胸围与左右波幅差之比、波幅、流入容积速度、流出容积速度、下降支抬高指数、电机械收缩期、右室射血时间、PEP、PEP/RVET等11个参数测定的结果。经过统计学处理,比较出其中波幅、流入容积速度、流出容积速度、右室射血时间、PEP、PEP/RVET这6个参数作为肺心病早期诊断的铺助指标是比较稳定可靠的,而其余5项指标对于鉴别肺心病和其它各组则无明显意义。此外,本文还讨论了肺阻抗容积图电极板位置放置的新方法、体位改变对肺阻抗容积图波形和波幅的影响等问题。
This paper summarizes the 186 patients with normal, emphysema, suspicious pulmonary heart disease, pulmonary heart disease in patients with pulmonary impedance volume chart, right ventricular systolic time waveform, basic impedance per unit area chest, chest and left and right amplitude ratio, Amplitude, inflow volume velocity, outflow volume velocity, descending elevation index, electromechanical systolic phase, right ventricular ejection time, PEP, PEP / RVET and other 11 parameters measured results. After statistical analysis, it is more stable and reliable to compare six parameters of amplitude, inflow volume velocity, volume outflow velocity, ejection time of right ventricle, PEP, PEP / RVET as the index of early diagnosis of pulmonary heart disease Five indicators for the identification of pulmonary heart disease and other groups were not significant. In addition, the paper also discusses the new method of placement of the lung impedance volumetric plate electrode position, the impact of body position changes on the waveform and amplitude of the pulmonary impedance volume diagram.