Acquisition Parameters
| Parameter | Description | Standard/preferred/optional |
|---|---|---|
| PET scanner type | 2- or 3-dimensional | Standard |
| Energy peak | 511 keV | Standard |
| Energy window | 18F-fluorine | Standard |
| Patient position | Supine with arms above head, if possible | Standard |
| Injection-to-scan time | 20–80 min after injection | Standard |
| 80 min | Preferred | |
| Acquisition area | Whole body (thighs to vertex) | Standard |
| Acquisition time | 20–30 min | Standard |
| Number of bed positions | 6–8 | Standard |
| Time per bed position | 3–4 min/bed | Standard |
For older scanners, increase time per bed position by 30% (i.e., 3 min to 4 min or 5 min to 6.5 min). Standard 18F-FDG whole-body acquisition protocol can be used for WB 18F-fluoroestradiol scan. For PET/CT protocols, refer to manufacturer’s recommendations for CT acquisition parameters.