Gilman M J, Laurens R G, Somogyi J W, Honig E G
J Comput Assist Tomogr. 1983 Jun;7(3):407-10. doi: 10.1097/00004728-198306000-00003.
Mean lung density (MLD), as determined by a chest computed tomographic sector method, was evaluated in 12 patients with sarcoidosis and diffuse interstitial lung disease. The results demonstrate that MLD in sarcoidosis was -610.9 +/- 57.3 Hounsfield units (HU), significantly different (p less than 0.001) from a control group MLD of -748.1 +/- 31.9 HU. There was also a significant inverse correlation between the forced vital capacity and total lung capacity in the sarcoidosis group. Our data suggest that a major factor determining MLD in a diffuse interstitial process such as sarcoidosis is pulmonary gas volume.
采用胸部计算机断层扫描扇形扫描法测定了12例结节病和弥漫性间质性肺病患者的平均肺密度（MLD）。结果表明，结节病患者的MLD为-610.9±57.3亨氏单位（HU），与对照组的MLD -748.1±31.9 HU有显著差异（p<0.001）。结节病组的用力肺活量与肺总量之间也存在显著的负相关。我们的数据表明，在结节病等弥漫性间质病变中，决定MLD的一个主要因素是肺气体容积。
