MRI在儿童脱髓鞘病变中的应用

Application of Demyelinating Diseases with Children in MRI

目的 探讨ＭＲＩ在儿童脱髓鞘病变中的应用价值与意义。方法 应用ＭＲＩ对有脱髓鞘病变的患儿进行颅脑扫描，共４１ 例。分析其ＭＲＩ表现。结果 根据脱髓鞘病变的ＭＲＩ表现程度，将其分为三种：①轻度：１３ 例，表现为侧脑室前后角或三角区小片状散在分布长Ｔ２ 信号，境界较清；②中度：２３ 例，表现为脑室周围对称分布片状长Ｔ１ 长Ｔ２ 信号，境界不清，可伴有钙化、胼胝体受累及脑室扩张；③重度：５ 例，表现为脑白质广泛分布大片长Ｔ１ 长Ｔ２ 信号，部分融合，伴有坏死灶，脑皮质受累。结论 ＭＲＩ对儿童脱髓鞘病变敏感性极高，是检查儿童脱髓鞘病变的可靠方法。

Objective To explore the value and significance of MRI in children with demyelinating diseases. Methods Children who were demyelinating diseases were scanned cerebral by MRI,and analysis its MRI shows. Results According as MRI degree of demyelinating diseases:①Light duty are small patch long T 2 sign on the round of ventricle in 13 cases; ②Mid duty distributes symmetrically long T 1 and T 2 sign,and concomitance collapse damaging; ③weight duty are diffusely big patch long T 1 and T 2 sign,and part inoculate. Conclusion MRI is high sensitivity on demyelinating diseases,and it is credibility method to examine demyelinating diseases. [