Robustness to noise of arterial blood flow estimation methods in CT perfusion

BMC Research Notes

Table 5 Mean BFa values obtained after correction (starting from results provided by the semiautomatic algorithm)

SNR	BFa min (57.6)		BFa mean (87.6)		BFa max (113.4)
SNR	SM_sa	SM_sa_mod	SM_sa	SM_sa_mod	SM_sa	SM_sa_mod
10	37.97	58.41	57.82	88.96	64.99	99.98
20	38.96	59.93	58.68	90.27	68.08	104.75
30	38.90	59.84	56.26	86.55	65.56	100.87
40	40.14	61.75	59.30	91.23	67.71	104.17
50	39.11	60.17	59.29	91.21	64.46	99.17
60	39.58	60.90	60.70	93.39	66.25	101.92
70	40.63	62.50	59.18	91.05	68.27	105.03
80	40.45	62.22	59.15	91.01	67.00	103.07
90	40.70	62.62	59.68	91.81	69.09	106.30
100	39.91	61.40	58.23	89.58	70.04	10 7.75

BFa values obtained starting from estimations provided by the semiautomatic algorithm - SM_sa - and using the correcting formula - SM_sa_mod – (each value is the average of results obtained by 150 simulations), for each SNR study (bold numbers).

ISSN: 1756-0500