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目的探讨MRI对肩锁关节(ACJ)损伤的诊断价值，以提高该病的诊断水平。方法回顾性分析对58例经手术证实的ACJ损伤患者的X线平片、CT和MRI影像学资料，比较不同检查方法的诊断符合率。结果 MRI检查结果与手术诊断结果的符合率为94.8%，显著高于X线平片、CT的符合率79.3%、82.8%(=6.20，4.25，P<0.05)。 X线平片漏诊5例(8.6%)，误诊7例(12.1%)，CT漏诊4例(7.0%)，误诊6例(10.3%)。结论 MRI对ACJ损伤的诊断优于X线平片、CT，可全面反映肩锁关节及周围软组织结构的损伤情况，为临床确诊、分型及治疗方法的选择提供可靠依据。“,”Objective To investigate the diagnosis value of MRI in detection of in acromioclavicular joint (ACJ) dislocation so as to improve diagnostic accuracy of the condition.Methods The results of CT and MRI for 32 patients with PCNSL were analyzed retrospectively,and the results were compared with the final y obtained surgical-pathological examination. A retrospective study was performed to evaluate 58 ACJ dislocations.Retrospective analysis of the X-ray,CT and MRI material of 58 cases which was confirmed by surgery.X-ray,CT and MRI were compared by the diagnostic coincident rate. Results The diagnostic coincident rate of MRI (94.8%)was significantly higher than that of X-ray (79.3%)and CT (82.8%) ( <0.05). There were 5 cases missed and 7 cases misdiagnosed in X-ray, accounting for 8.6%and 12.1%.There were 4 cases missed and 6 cases misdiagnosed in CT,accounting for 7.0%and 10.3%.Conclusion It is bet er for MRI in diagnosis of ACJ dislocation than X-ray, CT,it can reflect the damage of ACJ and sur ounding tissue structure comprehensively,and provide reliable evidence for the selection of clinical diagnosis,classification and treatment methods.