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

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

SNR BFa min (57.6) BFa mean (87.6) BFa max (113.4)
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
  1. 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).