Fig. 5.

The left column of images show three different slices for the FMRIB 1.5 mm data ($\mathcal{B}$), and for each there is a vertical line that shows where the 1-D profiles were obtained. Perpendicular to that line are two horizontal lines that show the extent of the profiles (how many voxels it was obtained for). The next column shows that profile for each of the 120 diffusion weighted images (divided onto 60 + 60 images with phase-encoding A → P and P → A) without any correction for eddy currents (but corrected for susceptibility using topup). The next three columns show the corrected results when all the data (A → P and P → A) was used to run eddy with, from left to right, linear, quadratic and cubic models for the eddy current-induced field. The final three columns show the results when eddy was run separately for the A → P and the P → A data.