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目的：探究慢阻肺（COPD）合并肺间质纤维化经CT与传统X线诊断的效果。方法选取我院2012年3月~2015年6月收治的180例慢慢阻肺合并肺间质性纤维化患者，作为本次研究的对象。以随机平行的方式分成观察组、对照组，各90例。观察组和对照组分别通过CT、传统X线诊断。结果观察组和对照组诊断符合率分别为91.11%（82/90）、86.67%（78/90），观察组诊断符合率优于对照组，但差异无显著差异，>0.05。结论 COPD合并肺间质性纤维化经CT、X线诊断，均可达到诊断效果，但应结合患者病情、恢复和身体状况选择适宜的诊断方式，以防止滥用CT检查诊断，导致患者产生较大的心理和经济压力，并对身体健康构成不良的影响。“,”Objective Explore the COPD (COPD)with pulmonary fibrosis by CT and conventional X-ray diagnosis effect.Methods Select from March 2012 to June 2015 treated 180 cases of lung resistance slowly with pulmonary interstitial fibrosis patients,as the research object.Divided into observation group and control group in random parallel way,all the 90 cases.Observation group and control group respectively by traditional CT and X-ray diagnosis.Results Observation group and control group diagnosis coincidence rate was 91.11%(82/90),86.67%(78/90),the observer group diagnosis coincidence rate is better than that of control group,but no significant differences, >0.05.Conclusion COPD with pulmonary interstitial fibrosis by CT and X-ray diagnosis,diagnosis effect can be achieved,but should be combined with the patients,recovery and physical condition to choose suitable way of diagnosis,in order to prevent the abuse of CT examination in the diagnosis of,leading to produce larger psychological and economic pressures,and a negative influence to health.