Rosenblum L J, Mauceri R A, Wellenstein D E, Bassano D A, Cohen W N, Heitzman E R
Radiology. 1978 Nov;129(2):521-4. doi: 10.1148/129.2.521.
Preliminary work has shown that normal lungs have predictable CT patterns and density ranges. In emphysema, there are irregular zones of extremely low density as well as an overall low mean density. CT appears to have considerable potential for early detection of pulmonary emphysema and characterization of the degree of involvement. CT can also be useful in the study of physiological phenomena such as regional blood flow.
初步研究表明，正常肺部具有可预测的CT模式和密度范围。在肺气肿中，存在极低密度的不规则区域以及总体平均密度较低的情况。CT在早期检测肺气肿和确定受累程度方面似乎具有相当大的潜力。CT在研究诸如局部血流等生理现象方面也可能有用。
