Results for 12 Simulations of RMS Error Between RS and RS with Poisson Noise Added for Different Processing Methods
| Processing method | Mean | SD |
| None | 57.8* | 14.3 |
| FLT | 18.1 | 3.6 |
| F121, 2 passes | 32.8* | 5.7 |
| F121, 4 passes | 34.6* | 4.0 |
| F121, 6 passes | 39.0* | 4.2 |
| F121, 8 passes | 43.6* | 4.7 |
↵* Statistically different from FLT (P < 0.0001).
Data are for 6 methods and 2 kidneys. Number of coefficients for FLT was automatically determined, and number of F121 passes was varied from 2 to 8.