Segmentation of Cerebrovascular Anatomy from TOF-MRA Using Length-Strained Enhancement and Random Walker

Table 2

The comparative results tested with nonenhancement and tested after enhancement (proposed algorithm).

Data	Nonenhancement			Proposed algorithm
	FPR	FNR	DSC	FPR	FNR	DSC
	9.38%	41.23%	42.58%	0.33%	13.76%	92.45%
	8.54%	46.68%	20.43%	0.43%	16.02%	89.24%
	10.52%	43.67%	33.50%	0.12%	11.75%	92.80%
	5.73%	43.32%	36.36%	0.64%	9.02%	94.34%
	3.72%	43.89%	34.67%	1.90%	8.03%	94.48%
	8.21%	40.93%	43.98%	0.37%	19.55%	85.99%
	7.66%	44.49%	30.99%	0.61%	18.45%	86.94%
	1.24%	41.45%	40.74%	0.55%	19.89%	85.55%
	1.47%	40.94%	41.49%	0.98%	5.70%	96.39%
	10.76%	43.08%	35.66%	0.37%	10.86%	93.33%
	1.23%	4.78%	15.36%	0.08%	15.31%	90.02%
	8.42%	44.28%	31.65%	0.47%	18.89%	86.59%
Mean	6.41%	39.90%	33.95%	0.57%	13.94%	90.68%