Table 2.
Paired intragroup comparison of uptake values in reference organs. Data presented with standard deviation. PET 1: first acquisition; PET 2: second acquisition; pre RLT PET: baseline PET/CT; post RLT PET: follow-up PET/CT after radioligand therapy.
| Organ | Metric | Control Group (n = 54) | RLT Group (n = 85) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| PET 1 | PET 2 | p | pre RLT PET | post RLT PET | p | ||||
| Liver | SUVmean | 4.9 ± 1.4 | 4.9 ± 1.2 | 0.920 | 4.3 ± 1.2 | 4.4 ± 1.4 | 0.424 | ||
| SUVmax | 7.7 ± 2.0 | 7.6 ± 1.8 | 0.715 | 6.7 ± 1.7 | 6.8 ± 1.9 | 0.810 | |||
| Parotid gland | SUVmean | 10.8 ± 3.2 | 10.7 ± 3.2 | 0.981 | 8.3 ± 3.3 | 6.8 ± 2.9 | <0.001 | ||
| SUVmax | 16.8 ± 5.4 | 16.9 ± 5.6 | 0.899 | 12.7 ± 4.8 | 10.3 ± 4.3 | <0.001 | |||
| Submandibular gland | SUVmean | 11.3 ± 2.8 | 11.1 ± 2.7 | 0.602 | 9.2 ± 3.4 | 7.3 ± 3.5 | <0.001 | ||
| SUVmax | 18.1 ± 4.7 | 17.9 ± 4.4 | 0.633 | 14.2 ± 5.1 | 11.4 ± 5.2 | <0.001 | |||