摘要
目的探讨颈椎脊髓、脑脊液柱、椎管MR I横断面面积的相互比值与脊髓型颈椎病发病的关系。方法于颈椎MR I T2轴位像测量70例脊髓型颈椎病(CSM)患者及80例正常成人的脊髓横断面、脑脊液柱、椎管面积,每例共测量C4、C5、C6、C74个节段。每节段于椎体后高中点处、与脊髓纵轴垂直、终板平行作扫描,分别计算各节段脊髓/脑脊液柱、脊髓/椎管、脑脊液柱/椎管面积的比值。结果脊髓/椎管面积比值,CSM组4个节段均明显高于正常成人组;脊髓/脑脊液柱面积比值,CSM组C4、C5节段明显高于正常成人组;脑脊液柱/椎管面积比值于两组中无显著差异。结论椎体后高中点水平脊髓横断面面积与相应水平椎管横断面面积比值的增高是脊髓型颈椎病的发育性致病因素。
Objective To explore the relationship between the mobidity of cervical spondylotic myelopathy （CSM）and ratios among transverse areas of spinal cord, CSF column and spinal canal. Methods Transverse areas of spinal oont, CSF and spinal canal were measured in 70 patients of CSM and 80 normal adults as control by T2-weighted MRL Four segmeats from C4 to C7 were measured in each case. The area was measured from the middle of the posterior surface of the vertebral bedy.The imgaes were angled parallel with end plate and perpendicular to the long axis of the spinal cord. Then to calculate the ratios among the three areas mentioned above. Results The ratio between two transverse areas of spinal cord and spinal eanal of all the four segments in CSM group was much higher than that in normal group. The ratio between two transverse areas of spinal cord and CSF column of C4 and C5 segments in CSM group was much higher than that in normal group. There was no deference in the radio between two transverse areas of CSF column and spinal canal in the two groups. The high ratio between two transverse areas of spinal cord and spinal canal is an etiological factor of CSM.
出处
《脊柱外科杂志》
2006年第2期87-90,共4页
Journal of Spinal Surgery
关键词
颈椎
椎管狭窄
磁共振成像
摄影测量法
cervical vertebrae
spinal stenosis
magnetic resonance imaging
photogrammetry
