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目的 评价双肺微小结节行胸部DR摄片、CT平扫的诊断价值，为双肺微小结节疾病的诊断工作提供参考，以促进双肺微小结节患者治疗预后。方法 选择我院2017年10月至2019年7月收治住院治疗的双肺微小结节患者，总计40例。全部患者均经胸部DR摄片以及CT平扫，患者知情同意参与，经医院伦理委员会审核批准。与病理结果进行比较，分析经胸部DR摄片、CT平扫诊断后的价值。结果 病理结果显示：良性患者、恶性患者分别为32例、8例，占比率分别为80.00%、20.00%。经胸部DR摄片诊断后，良性患者、恶性患者分别为37“,”Objective To evaluate the diagnostic value of chest DR radiography and CT plain scan for micronodules in both lungs， and to provide references for the diagnosis of micronodules in both lungs， so as to promote the prognosis of patients with micronodules in the lungs. Methods A total of 40 patients with micronodules in both lungs who were hospitalized in our hospital from October 2017 to July 2019 were selected. All patients underwent chest DR radiographs and CT plain scans， and the patients had informed consent to participate， and were reviewed and approved by the hospital ethics committee. Compare with the results of pathology， analyze the value of diagnosis by chest DR and CT scan. Results The pathological results showed that there were 32 cases of benign patients and 8 cases of malignant patients， accounting for 80.00% and 20.00% respectively. After the diagnosis of chest DR radiography， there were 37 benign and 3 malignant patients， respectively. After CT plain scan diagnosis，there were 33 benign and 7 malignant patients， respectively. Compared with the pathological results， the diagnostic accuracy of CT plain scan was 87.50%， and the diagnostic accuracy of chest DR radiography was 62.50%. The diagnostic accuracy rate of CT plain scan is significantly higher than that of the diagnosis through chest DR radiography. After statistical calculation， it is statistically significant P＜0.05. Conclusion Pulmonary nodules are a type of multiple diseases in respiratory medicine. The incidence has always been high， and the etiology is not fully understood. In the case of micro nodules in both lungs， early diagnosis and treatment are needed to prevent the risk of malignant disease and improve patient safety.Blood tests， biopsy， chest X-ray photography， CT， MRI， etc. are all commonly used inspection methods. With the advancement of medical imaging technology， chest DR radiographs and CT plain scans have begun to be widely used in the diagnosis of micro nodules in both lungs. The positioning of tiny nodules， high qualitative accuracy， and good patient acceptance. However， compared with the overall diagnostic value， the accuracy of CT plain scan diagnosis is higher. In order to improve the accuracy of diagnosis and reduce the risk of missed diagnosis and misdiagnosis of the disease，the diagnosis can be combined with the patient\'s condition and willingness to help the early diagnosis and treatment of the patient.