颈脊髓体积及颈椎管容积比值的MRI测量及其价值

The ratio of cervical spinal cord volume and cervical spinal canal volume measured on MRI and it’s value

目的:探讨颈脊髓体积与颈椎管容积比值与脊髓型颈椎病严重程度的关系。方法:对脊髓型颈椎病患者组30例及正常对照组30例进行颈椎3D FIESTA序列扫描,利用MRI工作站的测量工具测量C3～C6椎体节段相应颈脊髓体积及颈椎管容积并计算两者比值。对脊髓型颈椎病患者进行JOA评分。结果:脊髓型颈椎病患者组和正常对照组颈脊髓体积与颈椎管容积比值有统计学差异(t=6.501,P=0.000);脊髓型颈椎病患者组的颈脊髓体积与颈椎管容积比值与患者JOA评分呈负性相关(r=-0.626,P=0.000)。结论:颈脊髓体积与颈椎管容积比值可以定量反映脊髓型颈椎病的严重程度。

Objective： To explore relationship between the severity of cervical spondylotic myelopathy （CSM） and the ratio of cervical spinal cord volume and cervical spinal canal volume. Methods： 30 patients with CSM and 30 normal controls received cervical 3D FIESTA sequence scan. Cervical spinal canal volume and the corresponding cervical spinal cord volume between C3 and C6 vertebrae section were measured using the measurement tools in MRI workstation. The ratio of cervical spinal cord volume and cervical spinal canal volume were calculated. The CSM patients were evaluated with a JOA score. Results： The ratio of cervical spinal cord volume and cervical spinal canal volume was significant difference in CSM patients group and normal control group （t = 6.501, P = 0.000）; the JOA score and the ratio of cervical spinal cord volume and cervical spinal cancal volume had a negative correlation （r =-0.626, P = 0.000） in group of CSM patients. Conclusion： The ratio of cervial spinal cord volume and cervical spinal canal volume can be quantitatively reflect the severity of the CSM.