Baseline Imaging of Patients with G3 NENs (n = 69)
| Characteristic | No. of patients | % of patients |
| PET imaging (baseline) | ||
| SSTR imaging | 69 | 100.0 |
| 68Ga-SSTR PET | 61 | 88.4 |
| Octreotide scan | 8 | 11.6 |
| SSTR imaging uptake | ||
| Grade 1 (= liver) | 0 | 0.0 |
| Grade 2 (liver < SUVmax ≤ 15) | 13 | 18.8 |
| Grade 3 (15 < SUVmax < 20) | 10 | 14.5 |
| Grade 4 (SUVmax > 20) | 38 | 55.1 |
| Octreotide scan (Krenning score of ≥3) | 8 | 11.6 |
| 18F-FDG avidity | ||
| Grade 0 (none–minor uptake) | 9 | 13.0 |
| Grade 1 (< liver) | 4 | 5.8 |
| Grade 2 (= liver) | 1 | 1.4 |
| Grade 3 (liver < SUVmax ≤ 10) | 16 | 23.2 |
| Grade 4 (SUVmax > 10) | 29 | 42.0 |
| NA | 10 | 14.5 |
NA = not available.
Patients were 58.1 ± 12.9 y old.