Table 2.

Fit parameters of the time-dependent axial diffusivity D(t) in our simulations in 3d (Fig. 2e).

Dispersion angle θ (°)	D∞ (μm2/ms)	c (μm2 ⋅ ms−1/2)
0	1.25	0.426
15	1.16	0.407
30	0.94	0.343
45	0.62	0.253

Simulation results for dispersion angles θ = 15°–30° are consistent with the human brain PGSE data in genu, cf. Table 3.