Channelized Hotelling SNR Computed Over All 59 Bed Positions and 10 Sphere Locations and 3 Sizes (1,770 Conditions) for the 8 Processing Schemes Evaluated in 2D and 3D*
| Protocol | 2D + RVR | 3D + RVR | 2D +DWS | 3D + DWS |
|---|---|---|---|---|
| AWOSEM | 2.621 ± 0.305 | 2.759 ± 0.316 | 2.207 ± 0.312 | 2.279 ± 0.323 |
| OSEM-NATS | 1.451 ± 0.198 | 1.513 ± 0.258 | 1.394 ± 0.195 | 1.482 ± 0.242 |
| FBP-ATT | 2.307 ± 0.269 | 2.399 ± 0.293 | 2.014 ± 0.266 | 2.142 ± 0.285 |
| FBP-NATS | 2.304 ± 0.260 | 2.309 ± 0.279 | 2.004 ± 0.260 | 2.103 ± 0.283 |
↵* FBP with (FBP-ATT) and without (FBP-NATS) attenuation and scatter corrections, OSEM without attenuation and scatter corrections (OSEM-NATS), and attenuation-weighted OSEM (AWOSEM) along with randoms variance reduction (RVR) or delayed window subtraction (DWS).