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Correlation between quantitative magnetic resonance DTI values and neurological prognosis in patients with cervical spondylotic myelopathy
GUO Ruimin  WANG Du  YANG Wei 

Cite this article as: Guo RM, Wang D, Yang W. Correlation between quantitative magnetic resonance DTI values and neurological prognosis in patients with cervical spondylotic myelopathy. Chin J Magn Reson Imaging, 2020, 11(12): 1152-1155. DOI:10.12015/issn.1674-8034.2020.12.015.


[Abstract] Objective: To investigate the correlation between the quantitative values of magnetic resonance diffusion tensor imaging (DTI) and the neurological prognosis in patients with cervical spondylotic myelopathy (CSM).Materials and Methods: A total of 102 patients with cervical spondylotic myelopathy treated in our medical imaging department from May 2017 to August 2018 were enrolled to receive decompression for cervical spondylotic myelopathy, and were divided into good group [Japanese Orthopaedic Association (JOA) recovery rate≥60%, n=49] and poor group (JOA recovery rate<60%, n=53) according to the postoperative neurological recovery. The amount of DTI and the postoperative JOA score were observed, and the relationship between the quantitative DTI and JOA was also analyzed.Results: The proportion of T2WI high signal in the good group was lower than that in the poor group (χ2=17.21, P<0.01). The postoperative fractional anisotropy (FA) in the good group was higher than that in the poor group, and the apparent diffusion coefficient (ADC) was lower in the postoperative group than in the poor group (t=3.59, 6.38, P<0.001). There was no significant difference in λ∥ value and λ⊥ value between the two groups after surgery (t=0.592, 1.321, P=0.554, 0.189). The JOA score and JOA recovery rate in the good group were significantly higher than those in the poor group (t=7.22, 15.1, P<0.001). Correlation analysis showed that postoperative FA value was positively correlated with postoperative JOA score (r=0.53, P<0.001), that postoperative ADC value was negatively correlated with JOA recovery rate (r=-0.42, P<0.001), and that postoperative λ⊥ value was negatively correlated with JOA recovery rate (r=-0.39, P=0.03).Conclusions: The quantitative DTI value is related to the postoperative neurological recovery and postoperative JOA score in patients with cervical spondylotic myelopathy, which can reflect the pathological state of the spinal cord and has a predictive value for the postoperative neurological function.
[Keywords] diffusion tensor imaging；quantized value；cervical spondylotic myelopathy；postoperative neurological prognosis；apparent diffusion coefficient

GUO Ruimin Department of Imaging, Tianyou Hospital Affiliated to WuHan University of Science & Technology, Wuhan 430000, China

WANG Du Department of Imaging, Tianyou Hospital Affiliated to WuHan University of Science & Technology, Wuhan 430000, China

YANG Wei* Department of Imaging, Tianyou Hospital Affiliated to WuHan University of Science & Technology, Wuhan 430000, China

*Correspondence to: Yang W, E-mail:179436632@qq.com

Conflicts of interest   None.

Received  2020-05-07
Accepted  2020-08-21
DOI: 10.12015/issn.1674-8034.2020.12.015
Cite this article as: Guo RM, Wang D, Yang W. Correlation between quantitative magnetic resonance DTI values and neurological prognosis in patients with cervical spondylotic myelopathy. Chin J Magn Reson Imaging, 2020, 11(12): 1152-1155. DOI:10.12015/issn.1674-8034.2020.12.015.

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