目的探讨影像技术在肺癌普查中的临床应用。方法通过X线、CT、MRI等影像技术各自对早期肺癌诊断的特点进行分析统计。结果普通X线平片误、漏诊率较高,分别达到5%和3%;CR及DR比普通X线成像技术诊断率高10﹪以上;CT在肺癌早期诊断中占有重要的地位,是肺内结节肿块鉴别诊断的最佳方法,而MR作为CT的辅助检查手段,亦主要是对早期肺癌做出定性诊断,DSA则能充分显示肿瘤的血供等,对早期肺癌的检出及定性定位具有较大价值。结论影像技术在肺癌普查中占有非常重要的作用,X线摄片和CR、DR均可用在普查方法,CT、MRI可作进一步定性。 Objective To investigate the clinical application of imaging technology in lung cancer screening. Methods By X-ray, CT, MRI and other imaging techniques to analyze the characteristics of early diagnosis of lung cancer. Results The misdiagnosis rate and the misdiagnosis rate were 5% and 3% respectively. The diagnostic rates of CR and DR were higher than those of common X-ray imaging by more than 10%. CT played an important role in the early diagnosis of lung cancer. Nodules in the best method of differential diagnosis of the tumor, and MR as a secondary CT examination means, it is mainly for the qualitative diagnosis of early lung cancer, DSA can fully display the blood supply of the tumor, detection and early detection of lung cancer Positioning has greater value. Conclusion Imaging technology plays a very important role in census of lung cancer. X-ray, CR and DR can be used in census. CT and MRI can be used for further qualitative analysis.