Acquisition Parameters: SPECT or SPECT/CT
| Parameter | Characteristic | Standard/preferred/optional |
|---|---|---|
| Camera type | Large field of view | Standard |
| Energy peak | 159 keV | Standard |
| Energy window | 20% | Standard |
| Collimator | Low-energy high resolution | Standard |
| Patient position | Supine | Standard |
| Camera position | Anterior | Standard |
| Injection to imaging time | Early: 15 min | Standard |
| Late: 4 h | ||
| Acquisition type | SPECT | Standard |
| Views | NA | NA |
| Additional views | NA | NA |
| Orbit | 180° | Standard |
| Orbit type | Circular | Standard |
| Noncircular | Optional | |
| Pixel size | 6.4 mm | Standard |
| Matrix | 64 × 64 | Standard |
| 128 × 128 | Optional | |
| Number of projections | Single head 60 (6°) | Standard |
| Dual head 60/head (3°) | ||
| Time/projection | 30 s | Standard |
| CT Acquisition | Per manufacturer’s recommendations for attenuation correction or diagnostic imaging | Optional |
NA = not applicable.