Table 2.

Median (lower and upper quartile values in parentheses) of the euclidian distances between various types of selections, silver standards (SlvStd1 and SlvStd2), multiple-atlas-based predictions using STAPLE (atlas) and clinical selections, of the AC, PC and MC points over 20 patient volumes

	SlvStd1 vs. SlvStd2	SlvStd1 vs. atlas	SlvStd2 vs. atlas	SlvStd1 vs. clinical	SlvStd2 vs. clinical
	(a)	(b)	(c)	(d)	(e)
AC	0.56 (0.44, 0.87)	0.82 (0.57, 0.92)	0.59 (0.43, 0.92)	1.19 (1.00, 1.57)	1.29 (0.89, 1.60)
		p = 0.048	p = 0.220	p < 0.001	p = 0.001
PC	0.55 (0.38, 0.91)	0.63 (0.45, 0.97)	0.57 (0.42, 0.80)	1.08 (0.97, 1.27)	1.00 (0.79, 1.19)
		p = 0.598	p = 0.812	p = 0.001	p = 0.030
MC	0.51 (0.34, 0.58)	0.43 (0.33, 0.50)	0.52 (0.27, 0.64)	0.72 (0.60, 1.14)	0.98 (0.72, 1.30)
		p = 0.890	p = 0.667	p < 0.001	p < 0.001

Distances in columns (b–e) are compared to distances in (a) using Wilcoxon signed-rank tests, and the corresponding p values are shown.