Table 2.

Semiautomatic bone identification error in P8 mice

	Manual parietal	Not parietal
Semiauto(A) Low error P8 specimen
Parietal	2.081	0.016
Not parietal	0.012
Semiauto (B) High error P8 specimen
Parietal	2.308	0.056
Not parietal	0.09

Volumes (mm³) of left parietal bones identified by our semiautomatic segmentation (Semi) technique, compared to the results of manual segmentation, which represents the true extent of the bone (see Fig. 3). (A) Volumes for a P8 unaffected littermate displaying low error of left parietal voxel identification. The top left box represents voxels correctly identified by Semiauto, the bottom left box reflects true left parietal voxels missed by Semiauto, and the top right box reflects bone incorrectly labeled as left parietal by Semiauto. (B) Volumes for a P8 unaffected littermate displaying high error of left parietal voxel identification. Cells arranged as in (A).