美国Ｈｅｎｓｃｈｋｅ等最近报告的早期肺癌行动方案（ＥＬＣＡＮ）的总体设计和基线普查结果显示，低剂量ＣＦ检查有可能改善肺癌病人的预后。 ＥＭＡＰ对肺癌高危人群进行低剂量ＣＴ普查，并且每年重复检查一次，１０００名６０岁以上的无症状志愿者参加了该项研究，这些受试 The overall design and baseline census of the recently reported Early Lung Cancer Program of Action (ELCAN) by Henschke et al. In the United States shows that low-dose CF may improve the prognosis of lung cancer patients. EMAP low-dose CT screening of high-risk groups of lung cancer, and repeated once a year, 1000 asymptomatic volunteers over the age of 60 participated in the study, these subjects