Fig. 1
Comparisons between white matter (WM) integrity and grey matter (GM) integrity in fractional anisotropy (FA), radial diffusivity (RD), λ2/λ1 ratio (R1), λ3/λ1 ratio (R2), and λ2/λ3 ratio (R3). There was higher FA and R3 in WM integrity than in GM integrity on both in vivo (IV) and ex vivo scans, whereas there was lower RD, R1, and R2 in WM integrity than GM integrity (all at p < 0.001). SC-1, surface coil and one excitation; SC-4, surface coil and four excitations; VC-1, volume coil and one excitation; VC-4, volume coil and four excitations