Table 5 RCs for the contrast phantom scanned on the PET/MR and HRRT
Spheres | ||||||||
|---|---|---|---|---|---|---|---|---|
9.9 mm | 12.4 mm | 15.4 mm | 19.8 mm | 24.8 mm | 31.3 mm | |||
PET/MR | Contrast phantom | wTOF | 49.0 | 51.9 | 67.7 | 78.5 | 79.5 | 81.4 |
wTOF + filter | 40.9 | 44.8 | 60.8 | 72.6 | 77.9 | 79.9 | ||
wTOF + PSF | 61.1 | 60.9 | 72.9 | 82.6 | 80.4 | 81.9 | ||
wTOF + PSF + filter | 50.2 | 52.6 | 66.7 | 77.2 | 78.7 | 80.5 | ||
HRRT | Contrast phantom | Native | 44.5 | 50.1 | 59.1 | 68.4 | 79.3 | 80.4 |
Filter | 40.4 | 48.7 | 59.6 | 69.4 | 76.8 | 79.3 | ||
PSF | 54.4 | 56.9 | 66.9 | 71.6 | 84.5 | 85.9 | ||
PSF + filter | 49.5 | 54.9 | 65.6 | 73.4 | 82.5 | 85.0 | ||