Fig. 9.

Mean angular deviation (MAD) in a 1-stick-1-ball model from the estimated mean direction of the stick: a) color-coded FA from diffusion tensor model with the region-of interest that has been analyzed, b) sampled “stick directions” expressed in spherical angles ϕ and θ for the original data (light red) and the msPOAS reconstruction (black) for one white matter voxel, c) comparison of the MAD for the msPOAS reconstruction and for the original data using voxel with a minimal fractional anisotropy of 0.3, and d) comparison of the ratio of the MAD for the msPOAS and the original data with its counterpart from the POAS reconstruction on each shell using voxel with a minimal fractional anisotropy of 0.3.