Table 3. Absolute errors in image intensity, averaged across the brain for all b = 0 and DWI volumes.
Values shown are the mean across the five noise realisations, and errors are the standard deviation of the mean value for each noise realisation. Units are arbitrary signal units.
| GT + noise | RB | FMB | MPB | MPB/F | ||
|---|---|---|---|---|---|---|
| SNR ∞ | b = 0 | 0.00 | 2.41 | 1.36 | 0.73 | 0.59 |
| DWI | 0.00 | 0.70 | 0.20 | 0.13 | 0.09 | |
| SNR 40 | b = 0 | 0.23 ± 0.00 | 2.55 ± 0.04 | 1.71 ± 0.04 | 0.78 ± 0.00 | 0.62 ± 0.00 |
| DWI | 0.23 ± 0.00 | 0.75 ± 0.01 | 0.35 ± 0.01 | 0.27 ± 0.00 | 0.19 ± 0.00 | |
| SNR 20 | b = 0 | 0.70 ± 0.00 | 2.81 ± 0.03 | 2.09 ± 0.02 | 1.05 ± 0.00 | 0.80 ± 0.00 |
| DWI | 0.70 ± 0.00 | 1.00 ± 0.00 | 0.69 ± 0.00 | 0.68 ± 0.00 | 0.49 ± 0.00 |