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目的讨论DR和MSCT对胸部闭合性损伤的价值。方法分析2012年5月~2013年3月治疗的胸部闭合性损伤的40例患者的临床资料，改组患者均行胸部DR和胸部常规MSCT扫描。对DR和DSCT扫描所反映的影像特征进行分析。结果肋骨骨折、肺挫伤、胸腔积（血）液和气胸是胸部闭合性损伤的常见影像表现，DR可作为常规检查手段，MSCT对多发肋骨骨折、肺挫伤及胸腔积液有较大优势，能有效减少漏诊、误诊。结论把DR和SMCT这两种方法进行有机的结合，取长补短，优势互补，对患者进行科学、准确的联合检查,可以为临床提出科学、可靠的诊断结果。“,”Objective: To discuss the value of DR and MSCT for closed injury on chest. Methods: Reviewed and analyzed the forty patients clinical data treatmenting chest closed injury in the hospital from May 2012 to March 2013 which was on the scanning of chest DR and chest conventional MSCT for restructuring patients.The image features reflected by DR and DSCT scanning were analyed. Results:Rib fractures, pulmonary contusion, pleural ef usion (blood) and pneumothorax are the common imaging performance of chest closed injury. Conclusion Organic Combined The DR and SMCT, complementary advantages, for patients with scientific and accurate joint inspection, it can propose for clinical sciences, reliable diagnostic results.