TABLE 6.
Detection Rate of Local Recurrence, Lymph Node Metastasis, and Distant Metastasis by 68Ga-PSMA PET/CT and 18F-FDG PET/CT
| 68Ga-PSMA PET/CT | 18F-FDG PET/CT | 68Ga-PSMA and 18F-FDG PET/CT | ||||||
|---|---|---|---|---|---|---|---|---|
| TNM stage | Patients (n) | Location | n | % | n | % | n | % |
| Total | 56 | Local recurrence | 8 | 14.3% | 5 | 8.9% | 11 | 19.6% |
| Lymph node metastasis | 24 | 42.9% | 14 | 25.0% | 31 | 55.4% | ||
| Distant metastasis | 20 | 35.7% | 17 | 30.4% | 22 | 39.3% | ||
| Any location | 42 | 75.0% | 29 | 51.8% | 48 | 85.7% | ||
| Low risk | 20 | Local recurrence | 3 | 15.0% | 1 | 5.0% | 3 | 15.0% |
| Lymph node metastasis | 11 | 55.0% | 2 | 10.0% | 11 | 55.0% | ||
| Distant metastasis | 6 | 30.0% | 1 | 5.0% | 6 | 30.0% | ||
| Any location | 16 | 80.0% | 4 | 20.0% | 16 | 80.0% | ||
| Moderate risk | 23 | Local recurrence | 5 | 21.7% | 3 | 13.0% | 7 | 30.4% |
| Lymph node metastasis | 9 | 39.1% | 6 | 26.1% | 12 | 52.2% | ||
| Distant metastasis | 7 | 30.4% | 7 | 30.4% | 8 | 34.8% | ||
| Any location | 17 | 73.9% | 14 | 60.9% | 19 | 82.6% | ||
| High risk | 13 | Local recurrence | 0 | 0.0% | 1 | 7.7% | 1 | 7.7% |
| Lymph node metastasis | 4 | 30.8% | 6 | 46.2% | 8 | 61.5% | ||
| Distant metastasis | 7 | 53.8% | 8 | 61.5% | 8 | 61.5% | ||
| Any location | 9 | 69.2% | 11 | 84.6% | 13 | 100% | ||