Fig. 6.

Dice coefficient (DC) between binary GM masks derived from the MP2RAGE and MT-3DEPI data in either MP2RAGE (a) or MT-3DEPI (b) space as a function of GM probability threshold. DC was computed for data without distortion correction (red), and with distortion correction using either the B₀ field-mapping (blue) or the reversed-PE (green) methods. The bold lines indicate the mean DC across participants, while the shaded areas represent one standard deviation across participants above and below this value.