脊髓栓系综合症的MRI诊断

MRI Diagnosis of Tethered Cord Syndrome

目的分析脊髓栓系综合症的 ＭＲＩ影像学特点，提高对本病的认识。材料与方法 １１例病人行脊髓腰骶段轴位及矢状位的Ｔ１及Ｔ２加权像扫描（自旋回波），４例病人曾行ＣＴ轴位扫描，１０例病人行Ｘ线平片检查。结果１１例病人中，５例脊髓末端平Ｌ３椎体下缘水平，３例平Ｌ４椎体水平，１例平Ｌ５椎体水平，２例终丝增粗（直径３ｍｍ）。结论ＭＲＩ可确诊本病并显示病变程度，为本病的及时治疗提供可靠依据。

Purpose Analysing the MRI characters of tethered cord syndrome and improving the knowledgement of the disease. Materials and methods 11 cases were examined with MRI for both T1-weighted and T2-weighted axial and sagittal images (spin echo) at the lumbar-sacro segment of the cord. 4 cases were scaned on CT for axial images. 10 cases were examined with x-ray radiography. Results 5 of 11 cases whose cord ends are at the same level of L3; 3 cases, of L4; 1 case, of L5; 2 cases have thickened terminals (diameter: 3mm). Conclusion Tethered cord syndrome can be diagnosed firmly with MRI. Its extention can also be showed. MRI can be relied on for the in-time treatment of the syndrome.