Table 5 Technical specifications of the PET/CT systems used in this study
Site | System | Crystal | Technology | Matrix | Pixel sizes | Resolution |
|---|---|---|---|---|---|---|
1 | GE Discovery IQ-4 Ring | BGO | Q-Clear | 192 × 192 | 3.65 | 5.1 mm @1 cm CFOV |
2 | Siemens Biograph mCT Excel 20 | LSO | TOF, UltraHD | 200 × 200 | 4.07 | 4.4 mm @ CFOV |
3 | Philips GEMINI TF | LYSO | TOF | 144 × 144 | 4 | 4.7 mm @1 cm CFOV |
4 | GE Discovery MI Digital—(SiPM) PET | LYSO | TOF, Q-Clear | 256 × 256 | 2.73 | 3.95 mm |