Fig. 4

Distribution of 11 parameters obtained by dMRI. The participants are grouped according to age (< 50 years and ≥ 50 years), where the first row represents DTI parameters, the second row represents NODDI parameters, and the third row represents DKI parameters. The p-value in the lower left corner represents the result of the paired t-test; a p-value less than 0.05 represents statistical significance. All dMRI parameters except NDI and MK showed significant differences between CSM patients and normal volunteers