利用既往积累的临床资料进行统计处理，借以订出定量的客观鉴别诊断依据，作出疾病诊断，称之为计量诊断。我院１９９４～１９９６年收治肺癌早期阻塞性肺炎５２例，随机选择同期收治普通肺炎４０例，对二者Ｘ线表现进行原始资料统计，并设计“肺癌阻塞性肺炎早期Ｘ线征与... Using the previously accumulated clinical data for statistical processing to establish a quantitative basis for objective differential diagnosis, a diagnosis of the disease is called measurement diagnosis. In our hospital from 1994 to 1996, 52 cases of early-stage obstructive pneumonia were treated with lung cancer, and 40 cases of common pneumonia were selected at the same time randomly. The X-ray findings of the two groups were collected from the original data, and the early X-ray signs of lung cancer obstructive pneumonia were designed.