Cortical Surface Reconstruction from High-Resolution MR Brain Images

Figure 10

Contours of reconstructed cortical surfaces overlaid on the axial (left) and coronal (right) slice (red: inner surface; green: DELFMAP pial surface; yellow: FreeSurfer pial surface; note that the yellow contour appears jagged because it is displayed from FreeSurfer’s volumetric signed distance function sampled at 1 mm grid, whereas red and green contours are from level set functions sampled at a finer resolution; left and right images are not to scale). On the left image at the cross-line cursor position (superior frontal region), the yellow contour of FreeSurfer’s pial reconstruction oversegments into meningeal space, and a similar trend is noticeable next to cursor on the right image (temporal region).