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以Ｘ线胸片１０项定量指标及３项肺功能指标所确诊的慢性阻塞性肺气肿病人作为观察组，与在相同条件下用相同方法所检查的２４名健康人进行各项指标的对比观察。结果：肺功能的３项指标，经统计处理差异均有高度显著性（Ｐ＜０．０ｌ）；Ｘ线胸片的１０项指标只有后前位和左侧位右膈弧两项指标，经统计处理差异有高度显著性（Ｐ＜０．０１）。提示：肺功能测定诊断阻塞性肺气肿的价值优于Ｘ线胸片。故确诊慢性阻塞性肺气肿时最好同时进行Ｘ线胸片和肺功能两种检查。
To X-ray 10 quantitative indicators and three lung function indicators confirmed by chronic obstructive pulmonary disease patients as observation group, compared with the same conditions in the same way to check the 24 healthy people compared the indicators Observed. Results: The three indexes of pulmonary function were highly significant (P <0.01) by statistical analysis. There were only two indexes of posterior digit and right diaphragmatic arc on the 10 items of X-ray, Statistical differences were highly significant (P <0.01). TIP: The value of pulmonary function tests in diagnosing obstructive emphysema is superior to that of X-ray. Therefore, the diagnosis of chronic obstructive emphysema is best at the same time both X-ray and pulmonary function tests.