3D-STIR磁共振序列诊断神经根型颈椎病的临床价值

Clinical value of 3D-STIR magnetic resonance sequence in the diagnosis of cervical spondylotic radiculopathy

目的 探讨三维反转恢复快速自旋回波(3D-STIR)序列在显示颈部节前神经根受压情况,以及颈椎间盘突出与颈部神经根关系的临床应用价值,并评估该技术在不同节段(C6神经根及C7神经根)的诊断价值。方法 收集2021年9月~2022年3月于牡丹江医学院附属红旗医院就诊的有颈部疼痛、上肢麻木等有神经根受压症状并且临床高度怀疑神经根型颈椎病的100例患者,分别行磁共振常规序列(矢状位T2WI、T1WI、STIR,轴位T2WI)、3D-STIR序列扫描以及结合两种扫描方式判断神经根是否受压,分别统计C5~7单侧单节段神经根传导功能障碍的患者有无神经根受压的影像学表现。3D-STIR序列所有图像采用3D最大信号强调投影与曲面重组等后处理,由2名中高级职称磁共振诊断医师通过对重建后图像显示的神经根形态、走行、受压情况以及椎间盘与神经根关系的影像表现,评价3D-STIR序列在诊断神经根型颈椎病的临床应用价值。结果 按C6/C7神经根是否受压分为两组,常规核磁平扫、3D-STIR序列以及常规核磁平扫与3D-STIR序列结合诊断结果显示,按C6神经根是否受压,得出一致性分别为0.578、0.758、0.838。按C7神经根是否受压,统计方法同C6神经根,一致性分别为0.559、0.779、0.839。两组常规序列扫描一致性均大于0.40且小于0.75,为中度一致性,3D-STIR及与常规序列相结合一致性均大于0.75,为一致性较高,两组差异有统计学意义(P<0.05)。3D-STIR序列比常规磁共振序列在显示神经根受压情况上有明显优势。结论 3.0T磁共振3D-STIR序列以及常规核磁结合3D-STIR在诊断C6/C7神经根受压较仅用常规MRI平扫有一定优势。

Objective To investigate the three-dimensional spin echo with short time inversion recovery(3D-STIR) sequence for detecting compression of cervical anterior ganglia nerve roots.To evaluate the diagnostic value of this technique in different segments(C6 nerve root and C7 nerve root).Methods From September 2021 to March 2022,we selected 100 patients with cervical spondylotic radiculopathy with neck pain and upper limb numbness and clinically highly suspected cervical spondylotic radiculopathy.The patients underwent conventional magnetic resonance imaging(sagittal T2WI,T1WI,STIR,Axial T2WI) and 3D-STIR sequence scanning,as well as the combination of the two scanning methods to determine whether nerve root compression,and the imaging manifestations of nerve root compression in patients with C5-7 unilateral and single-segment nerve root conduction dysfunction.All images in the 3D-STIR sequence were postprocessed by 3D maximum signal emphasis projection and surface reconstruction.The images were reconstructed by two MRI diagnostic physicians with intermediate and senior professional title,and the images showed the morphology,movement,compression and intervertebral disc and nerve root relationship.To evaluate the clinical application value of 3D-STIR sequence in the diagnosis of cervical spondylotic radiculopathy.Results The C6/C7 nerve roots were divided into two groups according to whether the nerve roots were compressed or not.The diagnostic results of conventional MRI,3D-STIR sequence and conventional MRI combined with 3D-STIR sequence were counted.The consistency was 0.578,0.758 and 0.838 according to whether the nerve roots were compressed or not.According to whether C7 nerve root was compressed or not,the statistical method was the same as that of C6 nerve root,and the consistency was 0.559,0.779 and 0.839,respectively.The consistency of conventional sequence scanning in both groups was greater than 0.40 and less than 0.75,indicating moderate consistency.The consistency of 3D-STIR and combination with conventional sequence was greater than 0.75,indicating high consistency.The final significance test of the two groups showed statistically significant difference(P<0.05).3D-STIR sequences have a significant advantage over conventional MR sequences in revealing nerve root compression.Conclusion 3.0 T MR 3D-STIR sequence and conventional MRI combined with 3D-STIR have some advantages in the diagnosis of C6/C7 nerve root compression compared with conventional MRI plain scan.