摘要
目的:分析脑发育性静脉异常(DVA)的MRI影像资料,评价磁敏感加权成像(SWI)对脑发育性静脉异常的诊断价值。方法:回顾性分析12例经DSA或病理证实脑发育性静脉异常患者的MRI影像资料,总结其在SWI序列的表现特征。结果:全部病例SWI上均能显示呈典型的"海蜇头征"。结论:脑发育性静脉异常在SWI序列具有特征性表现,可对其明确诊断。
Objective：To study MRI presentation of cerebrum developmental venous anomalies（DVA）,and appraise susceptibility weighted imaging（SWI）diagnostic value of DVA.Methods：MRI images of 12 cases of developmental venous anomalies confirmed by DSA or pathology were retrospectively analyzed,and their SWI sequence features were summarized.Result：All cases in the SWI showed the typical sign of ＂jellyfish head＂.Conclusion：Developmental venous anomalies have characteristic SWI presentation,and thus can be diagnosed.
关键词
磁敏感加权成像
脑
发育性静脉异常
诊断
susceptibility weighted imaging（SWI）
cerebrum
developmental venous anomalies（DVA）
diagnosis
