Fig. 3.

Range of bone misidentification. Voxel misidentification of our semiautomatic segmentation technique for the left parietal (A) of a P8 unaffected littermate displaying relatively low error and (B) of a P8 unaffected littermate displaying relatively high error. Within the gray skull, yellow voxels are those identified as left parietal with both manual segmentation and semiautomatic segmentation. Left parietal voxels missed by the semiautomatic procedure (red) and voxels incorrectly labeled as left parietal (blue) are also shown. See also Table 2.