Table 5 Pearson (lower triangle) and Spearman (upper triangle) correlation coefficients with p−values (indicated in parentheses) between different MRI measures across all 15 white matter structures.

From: Comparisons between multi-component myelin water fraction, T1w/T2w ratio, and diffusion tensor imaging measures in healthy human brain structures

WM

MWF

T1w/T2w

FA

AD

RD

MD

MWF

 

0.223 (<10 −6 )

0.433 (<10 −6 )

0.331 (<10 −6 )

−0.263 (<10 −6 )

0.052 (0.263)

T1w/T2w

0.247 (<10 −6 )

 

−0.005 (0.922)

−0.021 (0.659)

0.041 (0.375)

−0.029 (0.526)

FA

0.385 (<10 −6 )

0.040 (0.387)

 

0.800 (<10 −6 )

−0.389 (<10 −6 )

0.478 (<10 −6 )

AD

0.358 (<10 −6 )

−0.059 (0.204)

0.712 (<10 −6 )

 

−0.075 (0.104)

0.814 (<10 −6 )

RD

−0.123 (0.008)

0.068 (0.141)

−0.208 (<10 −6 )

0.026 (0.582)

 

0.387 (<10 −6 )

MD

0.210 (<10 −6 )

−0.044 (0.349)

0.448 (<10 −6 )

0.892 (<10 −6 )

0.279 (<10 −6 )

 
  1. Corresponding data plots are shown in Fig. 5. Note: Bold font indicates correlations that were statistically significant after correcting for multiple comparisons using a Bonferroni correction (p < 0.003).