Quantification of disease severity and prediction of postoperative outcome were essential in management of cervical spondylotic myelopathy (CSM). The purpose of this study was to investigate correlation between diffusion metrics, including DTI or NODDI in spinal cord pathways, and the severity of CSM, as well as their predictive ability for postoperative recovery. We elucidated that the disease severity was significantly correlated with FA and ODI, and postoperative recovery correlated with RD and MD. The lateral funiculi and lateral corticospinal tract seemed to be the predominant spinal cord pathway that correlated with disease severity and postoperative recovery.
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