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作者对３２例慢性阻塞性肺病（ＣＯＰＤ）患者同期进行肺功能试验和肺部高分辨力ＣＴ扫描。结果显示，肺ＣＴ分级与反映肺气肿程度有关的肺功能指标有非常显著的相关性（｜ｒ｜＞０．５，Ｐ＜０．０１）；与一氧化碳弥散（ＤＬｃｏ）预计值的百分车及低氧血症（ＰａＯ２）相关性较差（ｒ＜０．３ｌ，Ｐ＜０．０５）；与年龄、身高及性别指标无明显关系（ｒ＜０．２１，Ｐ＞０．０５）。肺密度降低是提示ＣＯＰＤ患者并存肺气肿的一项主要标志。与肺功能试验相比较，高分辨力肺ＣＴ是探查有无肺气肿较好的方法，它可以区分正常肺质和轻、中、重肺气肿，为肺气肿的定量及早期诊断提供了一种新的、无创伤性的和实用的检查方法。
The authors performed pulmonary function tests and high resolution pulmonary CT scans on 32 patients with chronic obstructive pulmonary disease (COPD) over the same period. The results showed that there was a significant correlation between the lung CT grade and the lung function index that correlated with the degree of emphysema (| r |> 0.5, P <0.01), and the percentage of predictive value of DLco There was no significant correlation between car and hypoxemia (r = 0.21, P <0.05), age, height and gender (r <0.21, P> 0.05) . Reduced lung density is a sign of coexisting emphysema in COPD patients. Compared with the pulmonary function test, high resolution lung CT is a better way to detect the presence or absence of emphysema, which can distinguish between normal lung mass and light, moderate and severe emphysema, and provide quantitative and early diagnosis of emphysema A new, non-invasive and practical method of inspection.