Fig. 4.
(a) Subject T1, (b) true FLAIR, (c) segmented lesions using T1 + true FLAIR, (d) T1, (e) T2, (f) segmented lesions using T1 + T2, (g) Segmentation of T1 which is the spatial prior, (h) Synthetic FLAIR, (i) segmented lesions using the T1 + synthetic FLAIR. The Dice coefficient between (c) and (f) is 0.49, while it is 0.75 between (c) and (i).