【摘要】 目的:探讨气速指数测定对间质性肺病(ILD)诊断的临床意义。方法:53例病人,其中男性14例,女性39例,年龄平均29±3岁。均用进口的全自动肺功能检测仪测定。依据测定的MVV、VC的参数和各占预计值百分比计算气速指数。计算方法:气速指数=MVV％／VC％。气速指数>1为限制性通气功能障碍,气速指数<1为阻塞性通气功能障碍。结果:53例间质性肺病病人中,气速指教>1的有29例,同时F-V曲线描图各值均升高,RV、TLC、RV／TLC各值均降低, FEV1．0／FVC平均值为80％。气速指数<1有24例,F-V曲线描图各值均降低。RV、TLC、RV／TLC各值均增加,FEV1.0/ FVC平均值为60％。结论:气速指数>1是诊断ILD的金标准,但是ILD病人有严重感染或合并症时,气速指数<1。更多还原

【Abstract】 Objective:To evaluate the clinical value of flow velocity index in the diagnosis of interstitial lung disease ( ILD). Methods: 53 patients , including 14 males and 39 females whose average are 29±3 . were measured by an imported all-auto lung function detection machine. An eqation for index of flow velocity was deduced by the measurment of MW, VC and the percentage in the predicted value, the result of MVV%/VC% is the index. Defined ventilation deterioration shows an index higher than 1;while the obstructive type shows an index lower than 1. Results:29 cases got an index higher than 1 discribed an increasd F-V curve while with the values of RV、TLC、RV/TLC decreased. The average value of FEV1.0/FVC was 80%. 24 cases got an index lower than 1 discribed an decreased F-V curve while with the values increasd, The average value of FEV1. 0/FVC is 60%. Conclusion: The index of flow velocity higher than 1 is an most important cretiaria, but when ILD patient got a severe inflammation or syndrom ,the index is lower than 1.更多还原