国人肺音监测与频谱分析─—294例健康人测定

Monttoring and frequeucy spectrogram of lung sound in healthy chinese──294 cases analysis

本文报道用自制的微机肺音频谱分析仪测定294例健康国人的肺音。结果表明肺音频谱主频率在不同年龄组间有差异，但均值都在200Hz以下．与文献报道一致。本测定法操作简便、对肺组织结构和气道通畅性改变具有高度敏感性，可作为临床检查、诊断的一种手段。

Lung sounds from 294 cases of healthy chinese were monitored and analyzed with frequency spectrogram analysor made by ourselves. The results shown the mean values of main frequency were mostly less than 200Hz,although there are significantly different between various age groups;children, youth, middle and old ages. The result suggests that frequency spectrogram of lung sound is a simple monitor with high sensitive to the changes of lung structures and conductivity of airway and is an useful method for clinical diagnosis.