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To assess the accuracy and variability of the optimal threshold, the average Sørensen-Dice coefficients (DSC) across subjects and iterations are shown across thresholds. Results for T1 lesions (T1L) and T2 lesions (T2L) are presented separately. The solid line represents the average while the filled-in area corresponds to one standard deviation from the mean. The round points on each figure are the average optimal threshold selected.
