Wang M, Wang X, Wang X, Wang Z, Zhan C
Pneumoconiosis Research Unit.
Hua Xi Yi Ke Da Xue Xue Bao. 1991 Jun;22(2):185-8.
A comparative study of chest roentgenograms and the value of RV/TLC% in determining degree of emphysema of patients with pneumoconiosis and workers exposed to dust was made in 400 cases. Accordance rate of RV/TLC% with roentgenograms in determining emphysema in the same subjects was 61.1% and that in the patients group, 67.7%. Moreover, the accordance rate increased with grade of pneumoconiosis diagnosed. The results showed that RV/TLC% was valuable in determining emphysema of patients with pneumoconiosis. The classes of degree of emphysema were proposed according to the testing value of RV/TLC%.
对400例尘肺病患者和接触粉尘工人的胸部X线片以及残气量/肺总量百分比（RV/TLC%）在判定肺气肿程度方面的价值进行了一项对比研究。在相同研究对象中，RV/TLC%与X线片在判定肺气肿方面的符合率为61.1%，在患者组中为67.7%。此外，符合率随所诊断的尘肺病等级升高而增加。结果表明，RV/TLC%在判定尘肺病患者的肺气肿方面具有价值。根据RV/TLC%的检测值提出了肺气肿程度分级。
