隐性神经管闭合不全的MRI分析

MRI diagnosis of occult neural tube dysraphism

目的:探讨隐性神经管闭合不全的临床表现及MRI征象,提高对该病的诊断水平。方法:搜集了39例手术和病理证实的隐性神经管闭合不全的资料,对其临床表现、手术结果和MRI征象进行回顾性分析。结果:脑脊膜膨出4例,背侧皮窦7例,脊柱脂肪瘤19例,原发性脊髓栓系综合征5例,脊髓纵裂2例,骶尾部畸胎瘤2例。MRI术前诊断与手术结果符合37例,约94.9%;2例误诊,约占5.1%。结论:MRI能明确显示隐性神经管闭合不全的部位、范围、信号改变及其与邻近组织的关系,是目前诊断该病的最有效检查方法。

Objective：To study the clinical symptom of occult neurat tube aysraphism and MRI appearance in order to improve the knowledge of this disease. Methods： The data of 39 cases with occult neural tube dysraphism proved by surgery and pathology were correlation with the clinical symptoms, the MRI appearance and the operative results were analyzed retrospectively. Results： Among 39 cases, occult spinal lipomas 19 cases, the primary tethered cord syndrome 5 cases, the diastematomyelia 2 cases, the sacroccegeal teratomas 2 cases. There were 37 cases （94.9%） which MRI diagnosis were accordant before and after operation, and 2 cases （5.1%） were misdiagnosed. Conclusion： MRI could clearly demonstrate the location, shape, extend and signal intensity of lesions as well as its relation with adjacent structures, thereby, MRI scan was the most effective modality for diagnosing occult neural tube dysraphism and providing useful information to guide therapy neural tube dysraphism.