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Diffusion tensor imaging of the lumbosacral enlargement helps to estimate the neurologic recovery after decompression surgery in patients with cervical spondylotic myelpoathy
XU Songjie  ZHAO Peng  CHEN Xueming  PENG Ruchen  ZHONG Jiali 

Cite this article as: Xu SJ, Zhao P, Chen XM, et al. Diffusion tensor imaging of the lumbosacral enlargement helps to estimate the neurologic recovery after decompression surgery in patients with cervical spondylotic myelpoathy[J]. Chin J Magn Reson Imaging, 2022, 13(6): 98-101, 107. DOI:10.12015/issn.1674-8034.2022.06.019.


[Abstract] Objective To evaluate changes in injury severity and assess postoperative neurologic recovery by conducting diffusion tensor imaging (DTI) of the lumbosacral enlargement and measuring modified Japanese Orthopedic Association (mJOA) score in patients with cervical spondylotic myelopathy (CSM).Materials and Methods Lumbosacral DTI was performed in 9 CSM patients before surgery and at approximately 1 year after surgery. Apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values were measured as two primary metrics of DTI. The correlation between both metrics and mJOA score was further examined.Results The postoperative ADC value of the lumbosacral enlargement was significantly decreased (t=-3.024, P=0.004), but FA value was significantly increased (t=3.741, P=0.001) from preoperative levels in CSM patients after surgery. There was significant correlation between FA and mJOA score at both preoperative (r=0.832, P＜0.05) and postoperative conditions (r=0.710, P＜0.05). There was no significant correlation between ADC and mJOA score at both preoperative (r=0.281, P=0.465) and postoperative conditions (r=0.195, P=0.616).Conclusions The DTI parameter FA value of spinal lumbosacral enlargement in CSM patients is related to neurological function before and after surgery, which can provide a new way for clinical evaluation of functional recovery after cervical spinal cord injury.
[Keywords] cervical spondylotic myelopathy；lumbosacral enlargement；diffusion tension imaging；fractional anisotropy；apparent diffusion coefficient

XU Songjie1   ZHAO Peng1   CHEN Xueming1*   PENG Ruchen2   ZHONG Jiali2  

1 Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

2 Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

Chen XM, E-mail: xuemingchen@sina.com

Conflicts of interest   None.

Received  2022-04-28
Accepted  2022-06-06
DOI: 10.12015/issn.1674-8034.2022.06.019
Cite this article as: Xu SJ, Zhao P, Chen XM, et al. Diffusion tensor imaging of the lumbosacral enlargement helps to estimate the neurologic recovery after decompression surgery in patients with cervical spondylotic myelpoathy[J]. Chin J Magn Reson Imaging, 2022, 13(6): 98-101, 107. DOI:10.12015/issn.1674-8034.2022.06.019.

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