目的 比较分析3D Bravo及3D Cube Flair两种MR增强扫描序列对肺癌脑 转移检出能力的优劣，优化肺癌脑转移病 例的MR检查方案。方法 回顾分析25例临 床确诊的肺癌患者的MR检查结果，患者MR 检查时同时行3D Bravo 及3D Cube Flair 两种MR增强扫描序列，比较两者的病灶 显示能力并作统计分析。结果 3D Cube flair共检出135个病灶，其中脑膜转移灶 78个、脑内转移灶57个；3D Bravo共检出 91个病灶，其中脑膜转移灶36、脑内转移 灶55个。脑膜转移者两种扫描序列相比P ＜0.01，有明显差异；脑内转移者两种扫 描序列相比P＞0.05，无差异。结论 3D Cube Flair增强扫描序列在早期判断肺癌 脑转移尤其是早期脑膜转移具有较高应用 价值，与3D Bravo扫描序列联合应用对诊 断价值更高。

Objective Comparative analysis of 3D Bravo and 3D Cube Flair two MR enhancement scanning sequence for detecting lung cancer with brain metastasis of quality. Methods Optimize the retrospective analysis of 25 cases of clinically diagnosed lung cancer patients with MR results MR examination method for cases of brain metastases of lung cancer, while 3D Bravo and 3D Cube Flair two MR enhanced scan sequence comparison, both display focus ability and statistical analysis. Results 3D Cube flair were detected in 135 lesions, including meningeal metastasis 78, brain metastases 57; 3D Bravo were detected in 91 lesions, including meningeal metastasis 36, brain metastases in 55. Meningeal metastasis two scanning sequence P<0.01, there are significant differences in brain metastasis; the two scanning sequence compared with P>0.05, no difference. Conclusion 3D Cube Flair enhanced scan sequence in the early diagnosis of brain metastases from lung cancer, especially the early meningeal metastasis has a high application value, and the combined use of 3D Bravo scan sequence is higher diagnostic value.