Table 3.

Fitting parameters evaluated from the dMRI data using the bi-exponential model as a function of the direction (x, y and z).

		f slow	Dfast	Dslow
RH	X	0.230 ± 0.006	0.605 ± 0.005	0.077 ± 0.003
	Y	0.17 ± 0.02	0.64 ± 0.02	0.055 ± 0.001
	Z	0.34 ± 0.01	0.59 ± 0.01	0.097 ± 0.004
LH	X	0.16 ± 0.03	0.51 ± 0.02	0.042 ± 0.002
	Y	0.46 ± 0.02	0.71 ± 0.03	0.074 ± 0.006
	Z	0.39 ± 0.04	0.77 ± 0.05	0.15 ± 0.01

D_fast and D_slow are the fast and slow diffusion coefficients and f_slow (with f_fast = 1 − f_slow) the fraction of the slow water pool. Units for D_fast and D_slow are expressed in [10⁻⁵ cm²/s].