Plot demonstrating the spearman correlation of MRE-derived isotropic
stiffness with age in different brain regions; (a) in thalamus with
spearman correlation coefficient of −0.32, p = 0.09; (b) in
corpus callosum with spearman correlation coefficient of −0.25, p = 0.18;
(c) in whole brain with spearman correlation coefficient of
−0.26, p = 0.17; (d) in gray matter with spearman
correlation coefficient of −0.57, p = 0.001; (e) in white
matter with spearman correlation coefficient of −0.16, p = 0.40.