Goddard P R, Nicholson E M, Laszlo G, Watt I
Clin Radiol. 1982 Jul;33(4):379-87. doi: 10.1016/s0009-9260(82)80301-2.
Fifty-three patients with chronic obstructive airways disease and 19 age-matched controls were studied using computed tomography (CT). The study shows that CT can detect the presence and distribution of pulmonary emphysema. Pulmonary vascular changes detectable on chest radiography correlate well with lung density as measured by CT. Patients with marked CT changes of emphysema had significantly greater impairment of diffusion capacity and FEV1.0/VC than the patients with less severe changes.
采用计算机断层扫描（CT）对53例慢性阻塞性气道疾病患者和19例年龄匹配的对照者进行了研究。研究表明，CT能够检测肺气肿的存在及分布情况。胸部X线片上可检测到的肺血管变化与CT测量的肺密度密切相关。肺气肿CT改变明显的患者，其弥散功能和第一秒用力呼气容积/肺活量（FEV1.0/VC）的受损程度显著高于改变较轻的患者。
