Fig. 5

Random permeable barrier model (RPBM) parameter maps. Maps of the fiber diameter (top) and permeability (bottom) of one subject are shown at all three time points (TP-0 – TP-2). Between the time points, no clear differences are visible in the maps. The excluded voxels that failied the quality control step of the radial diffusivity (RD) (RD(Δ = 28.1 ms) > RD(Δ = 116.7 ms) > RD(Δ = 316 ms)) are black in both maps, the fiber diameter and permeability.