Table 4.

Comparison of centerline algorithms on MRA brain images

Algorithm	ICA siphons accurate	Portion ICA siphons correct	Both ICA correct in image	Portion correct images	Mean number of trees	Standard deviation of trees	Mean stability	Standard deviation stability
COM	15/16	0.938	7/8	0.875	37.000	12.352	0.872	0.0459
MDFE	7/16	0.438	1/8	0.125	39.875	13.228	0.673	0.0732
DFE-COM	15/16	0.938	7/8	0.875	38.625	11.439	0.825	0.0434

The COM and DFE-COM cost function shortest paths centerline algorithms calculated the correct centerline in the same number of correct ICA siphons.