Table 5.

Objective evaluation results—means and standard deviations of the criteria for each category, specifying the number of cases considered.

Category	№	Fast Marching Method			Active Contour Models
		Dice	${\mathit{e}}_{\mathit{long}-\mathit{axis}}$ [%]	${\mathit{e}}_{\mathit{short}-\mathit{axis}}$ [%]	Dice	${\mathit{e}}_{\mathit{long}-\mathit{axis}}$ [%]	${\mathit{e}}_{\mathit{short}-\mathit{axis}}$ [%]
Solid-round	36	0.933 $\pm$ 0.034	5.94 $\pm$ 5.32	7.32 $\pm$ 7.48	0.819 $\pm$ 0.230	34.4 $\pm$ 49.2	33.6 $\pm$ 48.0
Solid-irregular	36	0.901 $\pm$ 0.059	10.6 $\pm$ 9.51	9.56 $\pm$ 8.09	0.821 $\pm$ 0.187	32.5 $\pm$ 44.9	25.2 $\pm$ 37.6
Sub-solid	18	0.799 $\pm$ 0.130	20.4 $\pm$ 26.0	18.6 $\pm$ 19.8	0.699 $\pm$ 0.230	54.2 $\pm$ 61.5	32.1 $\pm$ 30.9
Cavitary	18	0.614 $\pm$ 0.244	28.2 $\pm$ 20.0	41.8 $\pm$ 32.5	0.576 $\pm$ 0.269	68.4 $\pm$ 67.7	47.9 $\pm$ 54.7