目的　提高脑转移瘤核磁共振影像诊断的准确性。方法　对 11误诊病例的术前核磁共振影像学资料进行回顾性分析研究。结果　脑转移瘤误诊的主要疾病为胶质瘤 ,占 6 1% (14/ 2 3)。结论　在影像学表现不典型时 ,密切结合临床以及综合影像学分析有助于提高脑转移瘤MR诊断的正确性 Objective To improve the diagnostic accuracy of magnetic resonance imaging of brain metastases. Methods Retrospective analysis of 11 misdiagnosed cases of preoperative MRI data. Results The main misdiagnosis of brain metastases was glioma, accounting for 61% (14/23). Conclusions In the case of atypical radiological findings, the close combination of clinical and comprehensive imaging analysis can help improve the accuracy of MR diagnosis of brain metastases