Table 1 Summary of the acquisition and patient preparation parameters for the local and PPMI databases
From: Computer-aided diagnosis for (123I)FP-CIT imaging: impact on clinical reporting
Parameter | Local database | PPMI database |
|---|---|---|
Administered activity | 167–185 MBq | 111–185 MBq |
Injection-to-scan delay | 3–6 h | 3.5–4.5 h |
Acquisition time | 30 min | 30–45 min |
Acquisition pixel size | 3.68Â mm | Variable (scanner dependent) |
Number of projections | 120 (over 360°) | 90 or 120 (over 360°) |
Energy window | 159 keV ± 10% | 159 keV ± 10% and 122 keV ± 10% |
Collimator | LEHR | Variable (scanner dependent) |