Table 5.
Imaging performance of sTSH and eTSH F-18 FDG PET/CT studies compared to reference standards.
| Sites of metastases |
sTSH F-18 FDG PET/CT |
eTSH F-18FDG PET/CT |
||||
|---|---|---|---|---|---|---|
| Sensitivity | Specificity | Accuracy | Sensitivity | Specificity | Accuracy | |
| Local recurrence | 40% | 100% | 80% | 40% | 100% | 80% |
| Cervical lymph nodes | 50% | 100% | 60% | 75% | 100% | 80% |
| Distant Lymph nodes | 60% | 100% | 87% | 80% | 100% | 93% |
| Lung | 100% | 100% | 100% | 100% | 100% | 100% |
| Bone | 100% | 100% | 100% | 100% | 100% | 100% |
| Others | - | 93% | 93% | - | 87% | 87% |
| Mean | 58% | 99% | 87% | 66% | 98% | 90% |
sTSH = suppressed TSH; eTSH = elevated TSH; ∗p < 0.05.