Figure 3.

Label editing example. A typical manual edit is demonstrated. In the upper left, the pial surface of the right hemisphere is shown with labels generated from the DKT40 classifier atlas. Yellow arrowheads indicate a “double parallel” cingulate sulcus. The atlas failed to extend the rostral and caudal anterior cingulate regions dorso-rostrally to this sulcus, a common error when a parallel cingulate sulcus is present. To correct the error, the rater switches to the inflated surface view (upper right panel), and displays only the region outlines (lower right), which makes the cortical curvature map viewable. The rater then uses the curvature information to draw a line connecting vertices along the fundus of the parallel cingulate sulcus. Additional lines are drawn to subdivide the cingulate gyrus and the new regions are filled and labeled appropriately (bottom left panel). The yellow highlighted outline in the lower right panel indicates the last selected region (rostral anterior cingulate) and the light blue cursor mark within that region indicates the last selected surface vertex.