Table 3 Comparison between the SiPM-based handheld gamma camera of this study and the CZT-based CrystalCam (Crystal Photonics), both of which have been integrated with declipse®SPECT
| Â | SiPM camera | CrystalCam |
|---|---|---|
Detector material | NaI(Tl) | CZT |
Active area shape | square | square |
FOV (mm) | 63 × 63 | 40 × 40 |
Active area (sq. mm) | 3906 | 1600 |
Number of detector elements | 625 | 256 |
Detector element pitch (mm) | 2.5 | 2.5 |
Energy resolution at 140 keV | 22% |  < 7% |
Overall physical dimensions (mm) | 75 (dia) × 41 (H) | 60 × 60 × 160 (H) |
Mass (kg) | 1.4 | 0.8 |