Table 6.
Position of detectable cancerous lesions in [68Ga]Ga-PSMA-11 PET/CT patients (pretreated with radical prostatectomy/Ga-RP) with relation to PSA.
| PSA (ng/mL) | 0.2 -< 0.5 | 0.5 -< 1.0 | 1.0 -< 2.0 | 2.0 -< 5.0 | ≥5.0 | Chi2, r |
|---|---|---|---|---|---|---|
| Number (x/89) patient group Ga-RP |
16 | 15 | 13 | 18 | 27 | |
| PET/CT positive | 12/75% | 13/86.7% | 10/76.9% | 17/94.4% | 24/88.9% |
p = 0.108 r = 0.142 |
| Local recurrence without metastases | 4 | 5 | 3 | 5 | 0 | |
| Local recurrence with local metastases (regional metastases in the pelvis: iliac and/or pararectal) |
0 | 0 | 0 | 0 | 0 | |
| Local metastases without local recurrence | 2 | 1 | 0 | 1 | 1 | |
| Local recurrence with distant metastases (within 2 regions) | 0 | 0 | 1 | 0 | 0 | |
| Distant metastases (within 2 regions) without local recurrence | 2 | 2 | 2 | 1 | 2 | |
| Local recurrence with multiple metastases | 0 | 1 | 2 | 2 | 4 | |
| Multiple metastases without local recurrence |
4 | 4 | 2 | 8 | 17 | |
| Number of metastases: |
p = 0.018 * r = 0.386 |
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| Single metastases | 4 | 3 | 3 | 2 | 3 | |
| Multiple metastases | 4 | 5 | 4 | 10 | 21 | |
| Lymph node metastases (LNM) |
7 | 6 | 5 | 8 | 20 |
p = 0.094 r = 0.227 |
| Site of LNM: |
p = 0.376 * r = 0.226 |
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| Local LNM (regional LNM in the pelvis: iliac and/or pararectal) |
5 | 4 | 3 | 5 | 12 | |
| Distant LNM (extrapelvic LNM: retroperitoneal and/or above the iliac bifurcation) |
1 | 0 | 2 | 1 | 2 | |
| Local + distant LNM | 1 | 2 | 0 | 2 | 6 | |
| Bone metastases | 2 | 2 | 3 | 4 | 12 |
p = 0.101 * r = 0.267 |
| Visceral metastases | 0 | 0 | 1 | 0 | 0 |
* Fisher exact test. Abbreviations: PSA, prostate-specific antigen; LNM, lymph node metastases; p-value < 0.05 is considered significant; r, Pearson correlation coefficient.