Table 2.

The average and the standard deviation of the distance- and area-based metrics associated with wall boundaries produced by four methods (i.e., M2, SB, SA0, and SA5), as compared to the gold standard (i.e., first manual segmentation, M1). M2 represents the second manual segmentation. SB1 and SB2 represent two repeated semiautomatic segmentation boundaries without editing. SA0 and SA5 represent the semiautomatically segmented boundaries with editing. The difference between SA0 and SA5 was on the placement of control points on the CPR views (see Fig. 5).

	MAD (mm)	MAXD (mm)	AO (%)	AD (%)
M2	0.21 (0.15)	0.50 (0.39)	89.39 (7.53)	11.07 (12.25)
SB1	0.32 (0.23)	0.77 (0.52)	84.75 (9.46)	12.90 (12.95)
SB2	0.32 (0.25)	0.76 (0.55)	84.65 (10.20)	13.11 (13.22)
SA0	0.25 (0.14)	0.60 (0.33)	87.48 (6.51)	9.69 (9.22)
SA5	0.30 (0.16)	0.66 (0.34)	85.44 (7.38)	11.02 (10.08)