Table 1.

Algorithm performance for 20, 50 and 100 iterations. Cardiac region volume for 50 and 100 iterations were not significantly different from expert manual quantification.

Iterations	Time (sec)	Overlap (Dice Coefficient)	Cardiac region volume difference (%) from expert	Overlap central 70% cardiac region (Dice coefficient)
20	12.8 ± 2.1	0.80 ± 0.10	13.7 ± 11.7 (p=0.04*)	0.87 ± 0.09
50	23.1 ± 3.7	0.86 ± 0.05	6.7 ± 5.2 (p=0.7, NS)	0.92 ± 0.03
100	39.0 ± 7.4	0.89 ± 0.01	3.8 ± 3.0 (p=0.1, NS))	0.94 ± 0.01