脊髓型颈椎病患者颈椎MRI与X线片矢状位参数的对比分析

Comparison of sagittal parameters of MRI and X-ray in patients with cervical spondylosis myelopathy

中文关键词:  脊髓型颈椎病  MRI  X线片  矢状位参数  体位

英文关键词:Cervical spondylosis myelopathy  X-ray  MRI  Sagittal parameters  Position

中文摘要:

  【摘要】 目的：分析脊髓型颈椎病患者颈椎MRI与颈椎X线片矢状位参数的差异性及相关性。方法：收集在我院脊柱外科住院且符合纳入标准的42例脊髓型颈椎病患者的影像学资料，在颈椎MRI及X线片上测量T1 倾斜角（T1-Slope，T1S）、胸廓入口角（thoracic inlet angle，TIA）、颈倾斜角（neck nilting NT）、C2-C7 Cobb角（Cobb角）等矢状位参数，采用配对样本t检验比较两种测量方式的差异性，利用Pearson相关性检验对两种测量方式测量参数进行相关性分析，应用线性回归建立两种测量方式各参数的线性模型。结果：X线片上测量的NT 、Cobb角与MRI上测量的结果有显著性差异（P<0.05），T1S、TIA无显著性差异（P>0.05）。在MRI上，TIA与T1S（r=0.677）、NT（r=0.547）、Cobb角（r=0.50）之间存在显著相关性；T1S与TIA（r=0.677）及Cobb角（r=0.514）之间存在显著相关性，而与NT不存在相关性。在X线片上TIA与T1S X（r=0.706）、NT（r=0.361）存在显著相关性，而与Cobb角之间无显著相关性；T1S与NT（r=-0.325）、TIA（r=0.706）及Cobb角（r=0.370）之间存在显著相关性。MRI上T1S、NT、TIA和Cobb角与X线片上T1S（r=0.660）、NT（r=0.624）、TIA （r=0.746）和Cobb角（r=0.547）之间存在显著相关性。Cobb（X）=8.12＋0.59Cobb（MRI），T1S（X）=10.12+0.58T1S（MRI），TIA（X）=25.74+0.64TIA（MRI）；NT（X）=23.55+0.51NT（MRI）。结论：颈椎MRI上测量的TIA及TIS与X线片上相近，NT和Cobb角与X线片有显著相关性，可以用MRI测量的参数来评价颈椎矢状位平衡情况。

英文摘要:

  【Abstract】 Objectives: To analyze the difference and correlation of cervical sagittal parameters in MRI and X-ray in patients with cervical spondylosis myelopathy(CSM). Methods: 42 outpatients with CSM up to standard were included, MRI and X-ray parameters were measured and analyzed including: T1 slope(T1S), thoracic inlet angle(TIA), neck nilting(NT), C2-C7 Cobb angle(Cobb angle). Pearson correlation test and paired samples t test were used to show the correlation and the difference between the two measurement methods, linear regression was employed to establish the linear model of the two measurement methods. Results: The measurements of NT and Cobb angle between MRI and the X-ray were significantly different(P<0.05); T1S ang TIA had no significantly difference(P>0.05). In the MRI, TIA was significantly correlated with T1S(r=0.677), NT(r=0.547), Cobb angle(r=0.50). There was correlation of T1S with TIA(r=0.677) and Cobb angle(r=0.514), but there was no correlation between T1S and NT. In the X-ray, there was a significant correlation of TIA with T1S(r=0.706) and NT(r=0.361), there was no significant correlation between TIA and Cobb angle. T1S was significantly correlated with NT(r=-0.325), TIA(r=0.706) and the Cobb angle(r=0.370). T1S, NT, TIA, Cobb angle in MRI and T1S(r=0.660), NT(r=0.624), TIA(r=0.746), Cobb(r=0.547) in X-ray showed significant correlations. Cobb(X)=8.12+0.59Cobb(MRI); T1S(X)=10.12+0.58T1S(MRI); TIA(X)= 25.74+0.64TIA(MRI); NT(X)=23.55+0.51NT(MRI). Conclusions: The measurement of TIA and T1S in cervical spine MRI is similar to that in X-ray, NT and Cobb angle have significantly correlation with X-ray, MRI parameters can be use to evaluate the sagittal balance of cervical spine.