Table 4.

Mean errors of nonclosed hematoma (grouping by size) by slice, voxelization methods, and 3D-Slicer method, compared with the 3D-Slicer method for closed models.

	n	Slice method 1	Slice method 2	Voxelization method	3D-Slicer method for nonclosed models
First group	89	0.00128517	0.00025000	0.00079449	0.01426753
Second group	59	0.00405797	0.00067915	0.00036763	0.04990034
Third group	50	0.00888480	0.00185180	0.00131520	0.00574640