Table 1.

V_err and V_diff statistics for each observer over 10 cases in manual contours (inter-observer variability analysis).

(a) Verr
%	Base	Mid	Apex
Ant.	6.35 ± 4.92	3.46 ± 1.91	5.11 ± 2.41
	10.35 ± 6.28	4.99 ± 2.83	6.99 ± 5.60
	12.17 ± 13.49	4.76 ± 5.86	4.30 ± 1.99
Lat.	5.52 ± 1.97	3.34 ± 1.21	5.06 ± 2.60
	6.87 ± 2.48	4.39 ± 1.65	6.44 ± 3.65
	4.92 ± 3.18	3.09 ± 0.73	4.58 ± 2.07
Post	7.13 ± 4.11	2.89 ± 0.97	5.44 ± 2.40
	7.62 ± 6.03	5.50 ± 2.82	3.91 ± 2.92
	5.43 ± 2.93	3.31 ± 1.27	5.44 ± 2.41
Total	4.19 ± 0.72
	5.54 ± 0.95
	4.23 ± 1.64

(b) Vdiff
%	Base	Mid	Apex
Ant.	7.40 ± 16.18	3.61 ± 6.71	4.09 ± 10.77
	13.04 ± 24.50	−0.70 ± 11.60	−8.39 ± 13.19
	−18.66 ± 19.49	−4.16 ± 11.66	2.30 ± 8.86
Lat.	6.77 ± 9.09	2.13 ± 5.47	4.83 ± 9.74
	−4.74 ± 10.82	−5.40 ± 5.87	−9.28 ± 8.95
	−2.05 ± 8.29	2.04 ± 3.46	3.72 ± 8.26
Post	2.40 ± 15.89	4.08 ± 3.28	−5.55 ± 8.42
	−7.18 ± 14.80	−9.69 ± 5.22	−3.76 ± 6.60
	4.21 ± 11.95	3.55 ± 4.38	8.13 ± 9.15
Total	3.42 ± 4.67
	−4.71 ± 6.64
	0.35 ± 4.54