磁共振脊髓成像诊断椎管病变的价值

探讨ＭＲＭ诊断椎管病变的价值及ＭＲＭ技术方法。材料与方法：对７１例椎管病变的常规ＭＲＩ检查及ＭＲＭ表现进行了分析，其中髓内肿瘤８例，髓外硬膜内肿瘤１４例，硬膜外肿瘤９例，结核３例，脊椎外伤７例，脊柱闭合不全６例，椎间盘突出及骨性椎管狭窄２４例。

The Value of MRM in Diagnosing the Diseases of the Spinal Canal

Objective: To evaluate the value of MRM in diagnosing the diseases of spinal canal and to study the practical technique.Materials and Methods:The MRM and conventional MRI findings in 71 patients with spinal canal diseases were analyzed. The cases were consisted of the following diseases: intramedullary tumors 8, intradural extramedullary tumors 14, extradural tumors 9, vertebral tuberculosis 3, spinal injuries 7, spinal dysraphism 6, intervertebral disc hernia and bony stenosis of the spinal canal 24 cases.Results:MRM could distinguish structures with minor differences in signal, which could be hardly distinguished by the conventional MRI. MRM 3D MIP reconstruction was superior to the conventional MRI in demonstrating the anatomical relationship between the lesions and the spinal canal. For demonstrating the solid structures of tumors and extradural lesions, MRM was inferior to the conventional MRI.Conclusion: Compared with other myelography, MRM has the advantages of nonivasive, easy to study and without any complications. The accuracy of MRM in diagnosing the spinal canal diseases can be further increased if combined with conventional scan sequence of MRI.