Table 3.

Systematic differences (average) and random differences (standard deviations) between ultrasound and computed tomography alignments

	Anterior–posterior [mm (SD)]	Lateral [mm (SD)]	Longitudinal [mm (SD)]
Patient 1	$-0.78$	0.52	$-0.52$
	(0.91)	(2.50)	(1.92)
Patient 2	0.69	$-0.61$	0.75
	(2.9)	(1.64)	(1.50)
Patient 3	0.38	0.21	$-0.67$
	(2.19)	(2.26)	(2.18)
Patient 4	0.21	$-0.16$	0.37
	(1.55)	(1.64)	(3.00)
Patient 5	$-0.81$	$-1.28$	1.32
	(2.20)	(1.32)	(2.09)
Patient 6	0.3	$-0.47$	1.11
	(2.05)	(1.46)	(1.36)
Patient 7	0.04	0.14	$-0.37$
	(1.82)	(1.59)	(2.36)
Patient 8	$-0.87$	$-0.44$	1.09
	(1.90)	(2.86)	(2.33)
Patient 9	$-1.02$	$-0.92$	$-0.64$
	(1.45)	(1.86)	(1.92)
Patient 10	$-1.48$	0.66	$-1.91$
	(1.7)	(2.7)	(2.68)
Patient 11	$-1.87$	$-0.21$	$-0.98$
	(2.39)	(2.30)	(2.08)
Patient 12	$-1.14$	0.33	$-0.51$
	(2.35)	(2.33)	(2.02)
Patient 13	$-1.4$	0.25	$-1.71$
	(1.94)	(1.70)	(2.27)
Patient 14	$-2.1$	$-0.85$	$-0.70$
	(1.94)	(2.38)	(2.07)
Patient 15	0.71	$-0.13$	$-1.12$
	(2.23)	(2.60)	(2.79)