目的 探索MRI在肩袖损伤诊断 中的应用价值，并与关节镜下诊断进行 比较，了解MRI诊断肩袖损伤的准确率。 方法 回顾性分析我院收治的肩关节损伤 并接受肩关节镜治疗的42例患者的临床 资料，将MRI的诊断率与肩关节镜进行 对比，分析MRI诊断肩袖损伤的诊断敏感 度、特异度、阳性预测值及阴性预测值。 结果 42例患者中，MRI诊断为肩袖损伤的 患者29例，肩关节镜下诊断为肩袖损伤的 患者27例。术前MRI未见肩袖损伤，而关 节镜下见肩袖撕裂5例，MRI及关节镜下均 未见肩袖损伤8例。结论 MRI在诊断肩袖 损伤方面具有诊断准确率高、特异度高等 优点，可通过MRI对可能的肩袖损伤患者 进行初步诊断。

Objective To evaluate the value of MRI in the diagnosis of rotator cuff tear. Methods 42 cases with a history of shoulder trauma underwent MR imaging. The results of MRl were studied retrospectively and compared with the findings of surgery and arthroscopy. Results Based on the results of arthroscopy and surgery, 32 of 42 cases had been confirmed by arthroscopy, including 29 cases confirmed by MRI, 8 cases were not found have rotator cuff tear. Conclusion MRI was a good modality in the diagnosis of rotator cuff tears and glenoid labrum ruptures of shoulder trauma．