Typical Performance Values for a Conventional SPECT System
| No. of detector heads | 2 |
| Field of view | 40 × 55 cm |
| Energy resolution | 9.50% |
| Intrinsic spatial resolution | 3.8 mm (FWHM) |
| Planar count sensitivity (LEHR) | 190 cps/MBq (95 cps/MBq per head) |
| SPECT spatial resolution (LEHR) | 10.5 mm (FWHM) |
LEHR = low energy, high resolution; FWHM = full width at half maximum; cps = counts per second.