Acquisition Parameters: SPECT or SPECT/CT
| Category | Parameter | Standard, preferred, or optional |
|---|---|---|
| Camera type | Large-field-of-view multidetector | Optional |
| Energy peak | 140 keV | Optional |
| Energy window | 20% | Optional |
| Collimator | Low energy, high resolution | Optional |
| Patient position | Supine | Optional |
| Camera position | To ensure field of view includes kidneys | Optional |
| Injection-to-imaging time | 2–4 h after injection | Optional |
| Acquisition type | Step and shoot or continuous | Optional |
| Orbit | 180° | Optional |
| Orbit type | Circular or noncircular | Optional |
| Matrix | 128 × 128 | Optional |
| Number of projections | 120 | Optional |
| Time per projection | 25–30 s | Optional |
| CT acquisition | Per manufacturer’s recommendations for attenuation correction or diagnostic imaging | Optional |