TABLE 3.

Feature registration accuracy for each patient^a

Patient no.	Feature registration error for each registration method (mm)
	PBR	ICP	SMI
1	1.2	1.8	1.8
2	2.3	1.3	33.1
3	0.6	0.7	0.8
4	1.1	1.4	2.3
5	3.8	2.3	4.7
6	2.1	3.0	2.7
7	2.6	1.9	2.8
8	2.9	3.4	6.5
Average	2.1 ± 1.1	2.0 ± 0.9	6.8 ± 10.8

^aPBR, point-based registration; ICP, iterative closest point; SMI, surface MI.