Table 3.
Characteristics of positron emitters.
| 11C | 18F | 68Ga | |
|---|---|---|---|
| Half-life (min) | 20 | 110 | 68 |
| Production source | on site cyclotron | on site cyclotron or delivery | 68Ge/68GaGenerator |
| Positron energy (MeV) | 0.96 | 0.64 | 1.90 |
| Positron range (mm) | 1.1 | 1.0 | 2.9 |
| Renal PET tracer | 11C-PABA |
18F-FDS 18F-PFH Re(CO)318F-FEDA |
68Ga-EDTA 68Ga-NOTA 68Ga-RDye800-tilmanocept |
| Advantage | Less exposure to radiation | Lower cost Delivery available Flexibility due to longer half-life Physical properties suitable for imaging |
Can be operated without a cyclotron |
PABA: para-aminobenzoic acid, FDS: 2-deoxy-2-fluoro-D-glucose, PFH: p-fluorohippurate Re(CO)3FEDA: Re(CO)3-N-(fluoroethyl)iminodiacetic acid, EDTA: ethylenediaminetetraacetic acid, NOTA: 1,4,7-Triazacyclononane-1,4,7-triacetic acid.