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Table 3 Optimal and worst susceptibility weighting parameters

From: Susceptibility-weighted cardiovascular magnetic resonance in comparison to T2 and T2 star imaging for detection of intramyocardial hemorrhage following acute myocardial infarction at 3 Tesla

  Filter Alpha Beta Sigma ΔrSNR* rSNR
1 128 0.95 0.20 3 1.327 2.115
2 64 0.95 0.10 5 1.324 2.025
3 64 0.95 0.20 5 1.321 2.295
4 64 0.80 0.10 5 1.316 2.180
5 128 0.95 0.10 5 1.305 2.702
6 128 0.95 0.30 3 1.304 2.404
7 64 0.95 0.00 7.5 1.301 2.605
8 128 0.80 0.10 3 1.299 1.974
9 64 0.80 0.00 5 1.299 1.904
10 128 0.95 0.10 3 1.297 1.742
1056 128 0.20 0.55 75 0.005 4.019
1055 128 0.80 0.10 0.5 0.008 2.018
1054 64 0.40 0.00 1 0.009 2.528
1053 128 0.95 0.10 0.5 0.028 1.766
1052 64 0.80 0.10 0.5 0.029 2.158
1051 128 0.20 0.55 25 0.033 4.283
1050 64 0.95 0.00 1 0.039 1.270
1049 128 0.20 0.55 7.5 0.043 4.265
1048 128 0.21 0.20 15 0.052 4.255
1047 64 0.80 0.00 1 0.057 1.503
  1. n =10. Top 10 and bottom 10 values of *ΔrSNR difference between remote myocardium and IMH. rSNR relative signal to noise ratio of IMH. Lower rSNR values indicate more hypointense IMH.