Table 6.

For subsurface targets, brain shift correction model performance measured in residual errors (average residual error ± standard deviation of the error) and percent correction (average percent correction ± standard deviation of percent correction).

	Moderate shift (3 to 6 mm)			High shift ($>6\mathrm{mm}$)			Moderate and high shift ($>3\mathrm{mm}$)
Patient #	True shift (mm)	Residual error (mm)	Percent correction (%)	True shift (mm)	Residual error (mm)	Percent correction (%)	True shift (mm)	Residual error (mm)	Percent correction (%)
1	4.6	$1.9\pm 1.1$	$58.6\pm 23.9$	7.7	$2.6\pm 1.4$	$66.7\pm 18.2$	5.3	$2.1\pm 1.2$	$61.3\pm 22.6$
2	4.5	$2.6\pm 0.7$	$42.9\pm 15.6$	7.1	1.4*	80.8*	4.7	$2.5\pm 0.7$	$47.0\pm 14.9$
3	4.6	$2.5\pm 1.5$	$45.5\pm 32.6$	6.9	$2.1\pm 1.0$	$69.0\pm 14.5$	5.6	$2.3\pm 1.3$	$57.9\pm 23.2$
4	4.1	$1.9\pm 1.0$	$53.5\pm 24.4$	N/A	N/A	N/A	4.1	$1.9\pm 1.0$	$53.5\pm 24.4$
5	5.8	3.1*	46.93*	10.6	$3.0\pm 1.0$	$71.3\pm 9.4$	9.8	$3.1\pm 0.9$	$68.9\pm 9.2$
6	3.8	$1.6\pm 0.7$	$56.4\pm 18.4$	N/A	N/A	N/A	3.8	$1.6\pm 0.7$	$56.4\pm 18.4$
7	N/A	N/A	N/A	10.9	$3.5\pm 1.2$	$68.1\pm 11.0$	10.9	$3.5\pm 1.2$	$68.1\pm 11.0$
8	4.3	$2.1\pm 0.6$	$50.4\pm 14.0$	6.3	$2.8\pm 0.5$	$55.9\pm 7.9$	4.7	$2.2\pm 0.7$	$51.9\pm 14.9$
9	4.0	3.0 ± 0.7	24.9 ± 17.5	N/A	N/A	N/A	4.0	3.0 ± 0.7	24.9 ± 17.5

Note: N/A indicates lack of data in a particular subgroup in a patient case.

For details of subsurface shift, as well as number of points in each category, see Table 4.

^*Indicates only one point was present within range.