Table 2.
Significant P values (not corrected for multiple comparisons) calculated by performing F‐tests between repositioned and stationary phantom datasets for different analysis and reconstruction methods and for each sphere and for 5‐min scan duration data with 2 × 2 × 2 mm3 voxel sizes for both the Philips Ingenuity system and the Siemens Biograph system. Nonsignificant values are indicated with – for clarity reasons
| Sphere diameter (mm) | TOF (SUVmax) | TOF + PSF (SUVmax) | TOF (SUVpeak) | TOF + PSF (SUVpeak) | TOF (SUVmean) | TOF + PSF (SUVmean) | |
|---|---|---|---|---|---|---|---|
| Philips ingenuity | 10 | 0.006 | – | – | – | – | – |
| 13 | 0.005 | – | – | – | – | – | |
| 17 | 0.010 | – | – | – | – | 0.002 | |
| 22 | 0.001 | – | – | – | – | – | |
| 28 | – | – | 0.021 | 0.028 | 0.003 | 0.009 | |
| 37 | 0.016 | – | – | – | – | – | |
| Siemens biograph mCT40 | 10 | 0.046 | 0.011 | 0.025 | – | 0.032 | 0.020 |
| 13 | – | – | 0.008 | – | – | – | |
| 17 | 0.024 | – | – | – | – | – | |
| 22 | 0.001 | 0.004 | 0.001 | 0.027 | 0.001 | 0.004 | |
| 28 | 0.007 | 0.001 | 0.003 | 0.047 | 0.000 | 0.001 | |
| 37 | – | 0.011 | – | – | – | 0.021 |