Study | Reference for positive lesion | Group | SSTR PET | 18F-FDG PET | Suitability for PRRT |
---|---|---|---|---|---|
Chan et al. [29] (NETPET) |  > Background (Modified Krenning score 2–4) | P0 | Negative | Negative | Not suitable |
P1 | Positive | Negative | Probably suitable | ||
P2 | Positive | Positive (avidity on 18F-FDG < SSTR) | Probably suitable | ||
P3 | Positive | Positive (avidity on 18F-FDG = SSTR) | Probably suitable | ||
P4 | Positive | Positive (avidity on 18F-FDG > SSTR) | Probably suitable if P4aa; Maybe suitable with additional therapy required if P4b | ||
P5 | Negative | Positive | No | ||
Karfis et al. [30] |  > Background (Modified Krenning score 2–4) | C1 | Positive (all lesions) | Negative (all lesions) | Probably suitable |
C2 | Positive (all lesions) | Positive (≥ 1 lesion) | Probably suitable | ||
C3 | Negative (≥ 1 lesion) b | Positive (≥ 1 lesion) | Not suitable | ||
Zidan et al. [14] |  > Liver (Modified Krenning score 3–4) | 1 | Negative (all lesions) | Negative (all lesions | Not suitable |
2 | Positive (all lesions) | Negative (all lesions) | Suitable | ||
3 | Positive (all lesions) | Positive (≥ 1 lesion) | Suitable | ||
4 | Negative (≥ 1 lesion)b | Positive (≥ 1 lesion) | Not suitable |