. 2022 Jun 23;16:938674. doi: 10.3389/fnins.2022.938674

TABLE 3.

Correlation coefficients between DTI parameters and histopathological parameters.

	FA			RD
	RS3-EPI	RS5-EPI	RS7-EPI	RS3-EPI	RS5-EPI	RS7-EPI
POAA	r = 0.851 (P = 0.007^*)	0.911 (0.002^*)	0.897 (0.003^*)	−0.816 (0.013^*)	−0.882 (0.004^*)	−0.691 (0.058)
POMA	0.799 (0.017^*)	0.944 (<0.001^*)	0.769 (0.026^*)	−0.764 (0.027^*)	−0.964 (<0.001^*)	−0.812 (0.014^*)
TOM	0.751 (0.032^*)	0.953 (<0.001^*)	0.741 (0.036^*)	−0.808 (0.015^*)	−0.922 (<0.001^*)	−0.709 (0.049^*)
DOMF	0.664 (0.073)	0.886 (0.003^*)	0.623 (0.099)	−0.765 (0.027^*)	−0.876 (0.004^*)	−0.716 (0.046^*)

DTI, diffusion tensor imaging; FA, fractional anisotropy; RD, radial diffusivity. Histopathological parameters: POAA, percentage of axon area; POMA, percentage of myelin area; TOM, thickness of myelin; DOMF, diameter of myelinated fiber. r value, correlation coefficient value. P-value in parentheses, the result of correlation. *P ≤ 0.05.