脊髓栓系综合征的磁共振诊断

Magnetic resonance diagnosis of tethered cord syndrome

目的 :分析脊髓栓系综合征 (TCS)的磁共振特征性表现 ,探讨MRI对TCS的诊断价值。方法 :回顾性分析19例TCS的MRI表现。采用自旋回波序列 (SE) ,常规行矢状位及轴位扫描 ,部分辅以冠状位扫描。结果 :19例TCS中 ,全部显示为脊髓圆锥低位 ,伴腰骶部脊柱闭合不全11例 ;伴脊髓脊膜膨出5例 ;伴单纯脊膜膨出4例 ;伴脊髓空洞积水1例 ;伴脊髓纵裂畸形1例 ;伴椎管内脂肪瘤2例 ;腰背部皮毛窦1例 ;脊柱侧弯畸形2例 ;椎裂畸形1例 ;融合椎1例。结论 :MRI能够直接显示病变脊髓的全貌 ,以及并存的先天畸形、肿瘤和术后改变等。MRI是诊断TCS首选的方法。

Objective:To analyse the feature of magnetic resonance imaging(MRI)of tethered cord syndrome(TCS),and to study the diˉagnostic value of MRI on TCS.Methods:MRI manifestations in19patients with TCS were analysed retrospectively.Sagittal plane scanning,axial plane scanning and coronary plane scanning assisted in partial patients were performed by spin echo sequence.Results:All patients in this group displayed lowconus medullaris on MRI.Among them recessive cleft spine11cases,menigomyelocele5cases,simple meningocele4cases,hyˉdromyelia1case,diastematomyelia1case,terminal lipoma2cases,dermal sinus1case,severe spinal curve and intersegmental laminar fusion4cases.Conclusion:Magnetic resonance imaging can directly showwhole shape of spinal cord anomaly and also display vertebral anomaly,tumor and postoperation change etc.Therefor it is the examination method of choice in the diagnosis of TCS.