Table 1. Performance comparison of 18F-FDG and 68Ga-DOTATATE.
| N = 31 | 18F-FDG (95% CI) | 68Ga-DOTATATE (95% CI) |
|---|---|---|
| SENS (%) | 93.3 (68.1–99.8) | 73.3 (44.9–92.2) |
| SPEC (%) | 81.3 (54.4–96.0) | 93.8 (69.8–99.8) |
| PPV (%) | 82.4 (56.6–96.2) | 91.7 (61.5–99.8) |
| NPV (%) | 92.9 (66.1–99.8) | 78.9 (54.4–93.9) |
| Accuracy (%) | 87.3 (0.76–0.99) | 83.5 (0.70–0.97) |
18F-FDG SUVmax ≥ 2.5 or 68Ga-DOTATATE SUVmax ≥ 1.5 defines a positive study.
SENS, sensitivity; SPEC, specificity; PPV, positive predictive value; NPV, negative predictive value; SUVmax, maximum standardized uptake value; CI, confidence intervals