Table 1.
Noise Comparison*
| Fourier | SLIM | NL-CSI |
|||
|---|---|---|---|---|---|
| a | b | c | |||
| Simulation | |||||
| First 25 ms | 0.49 ± 0.06 | 0.62 ± 0.09 | 0.62 ± 0.05 | 0.33 ± 0.03 | 0.60 ± 0.04 |
| Last 25 ms | 0.45 ± 0.04 | 0.57 ± 0.05 | 15.9 ± 6.8 | 2.4 ± 0.35 | 2.5 ± 0.01 |
| In vivo | |||||
| Last 25 ms | 0.5 ± 0.35 | 0.51 ± 0.34 | 4.5 ± 3.7 | 0.6 ± 0.12 | 0.45 ± 0.12 |
Noise is shown as mean ± SD for all voxels and all the noise values are scaled by 104. a = NL-CSI solution with no regularization, b = NL-CSI with regularization coefficient λ, c = NL-CSI with regularization parameter λ(t) as described in Methods.