Table 4.
Volumetric comparison of different gross tumor volumes (GTV)
| Overall (n = 15) |
|
|---|---|
| GTVconventional (ml) | |
| Mean (SD) | 39.2 (20.3) |
| Median [Min, Max] | 37.7 [5.30, 80.3] |
| GTVFDG PET (ml) | |
| Mean (SD) | 41.1 (29.1) |
| Median [Min, Max] | 42.5 [6.50, 98.1] |
| GTVFAPI PET (ml) | |
| Mean (SD) | 57.9 (33.4) |
| Median [Min, Max] | 57.3 [11.0, 107] |
| GTVFinal RT-plan (ml) | |
| Mean (SD) | 48.5 (36.7) |
| Median [Min, Max] | 57.3 [5.3, 133.1] |
GTVs were based on CE-CT and MRI (GTVconventional), based on FDG PET/CT (GTVFDG PET) and based on FAPI PET/CT (GTVFAPI PET). Final RT plan (GTVFinal RT-plan) was made based upon all available imaging data, as well as clinical evaluation and interpretation of results