Table 3.
Diagnostic performance of fluciclovine PET-CT vs. clinical CT with contrast
Fluciclovine | CT with contrast | P value | |
---|---|---|---|
Prostate/bed (n=29/30) | |||
True positives | 14 | 3 | - |
True negatives | 6 | 9 | - |
False positives | 5 | 2 | - |
False negatives | 4 | 15 | - |
%Sensitivity (95% CI) | 77.8 (51.8–92.6) | 16.7 (4.4–42.3) | <0.001* |
%Specificity (95% CI) | 54.6 (24.6,81.9) | 81.8 (47.8,96.8) | 0.17 |
%Accuracy (95% CI) | 65.5 (45.7–82.1) | 17.2 (5.8–35.8) | <0.001* |
%PPV1 (95% CI) | 73.7 (48.6,89.9) | 60.0 (17.0,92.7) | 0.01* |
%NPV2 (95% CI) | 60.0 (27.4,86.3) | 37.5 (19.6,59.2) | 0.02* |
Extra prostate (n=26/30) | |||
True positives | 9 | 3 | - |
True negatives | 10 | 10 | - |
False positives | 0 | 0 | - |
False negatives | 7 | 13 | - |
%Sensitivity (95% CI) | 56.3 (30.6,79.3) | 18.8 (4.9,46.3) | 0.03* |
%Specificity (95% CI) | 100 (65.5,100) | 100.0 (65.5,100) | 1 |
%Accuracy (95% CI) | 73.1 (52.2–88.4) | 50.0 (29.9–70.1) | 0.09 |
%PPV1 (95% CI) | 100 (62.9,100) | 100.0 (31.0,100) | 1 |
%NPV2 (95% CI) | 58.8 (33.5,80.6) | 43.5 (23.9,65.1) | 0.3 |
PPV= Positive predictive value;
NPV= Negative predictive value.
- Statistically significant