Table 2.
SUV and TBR in [68Ga]Ga-PSMA PET/MRI.
| Overall | [177Lu]Lu-therapy | p-value | ||
|---|---|---|---|---|
| Not eligible | Eligible | |||
| Patients | 20 (100%) | 17 (85%) | 3 (15%) | |
| Tumor size in cm3 | ||||
| Contrast enhancement FLAIR |
20.9 (10.9-44.5) 122.4 (69.8-154.5) |
16.4 (9.5-32.9) 120.5 (74.2-150.6) |
49.1 (30.9-54.6) 144.7 (100.6-188.7) |
0.19 0.62 |
| Tumor SUVmean
Tumor SUVmax |
1.4 (1.1-1.7) 4.5 (3.7-6.2) |
1.4 (1.1-1.6) 4.3 (3.4-4.9) |
1.7 (1.5-1.9) 8.0 (6.4-8.3) |
0.11 0.00 |
| Liver SUVmean
Liver SUVmax |
4.3 (3.5-6.5) 8.1 (6.5-10.4) |
4.5 (3.7-7.0) 8.5 (7.0-10.8) |
3.6 (3.2-3.9) 6.4 (6.2-7.0) |
0.15 0.20 |
| Tumor-to-liver ratio | ||||
| TBRmean
TBRmax |
0.3 (0.2-0.4) 0.6 (0.4-0.8) |
0.3 (0.2-0.7) 0.5 (0.4-0.7) |
0.5 (0.4-0.6) 1.1 (1.0-1.2) |
0.01 0.00 |
| Previous therapies | 3 (2-4) | 3 (2-4) | 3 (2.5-3.5) | 0.94 |
FLAIR, Fluid-attenuated inversion recovery; SUV, standard uptake values; TBR, tumor-to-background ratio.