Table 5.
Diagnostic performances of the SUV parameters at 18F-Alfatide PET/CT in patients with SCC.
| SCC | Sensitivity | Specificity | PPV | NPV | Accuracy | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| % | 95%CI | % | 95%CI | % | 95%CI | % | 95%CI | % | 95%CI | |
| Visual | 100.0 | 47.8–100 | 93.3 | 83.8–98.2 | 55.6 | 21.2–86.3 | 100.0 | 93.6–100 | 93.9 | 85.0–98.3 |
| SUVmax | 100.0 | 47.8–100 | 96.7 | 88.5–99.6 | 71.4 | 29.0–96.3 | 100.0 | 93.8–100 | 96.9 | 89.3–99.6 |
| SUVmean | 100.0 | 47.8–100 | 85.0 | 73.4–92.9 | 35.7 | 12.8–64.9 | 100.0 | 93.0–100 | 86.2 | 75.3–93.5 |
| SUVLN/PT | 60.0 | 4.6–94.7 | 91.7 | 81.6–97.2 | 37.5 | 8.5–75.5 | 96.5 | 87.9–99.6 | 89.2 | 79.1–95.6 |
| SUVLN/MBP | 100.0 | 47.8–100 | 96.7 | 88.5–99.6 | 71.4 | 29.0–96.3 | 100.0 | 93.8–100 | 96.9 | 89.3–99.6 |
| SUVLN/M | 100.0 | 47.8–100 | 96.7 | 88.5–99.6 | 71.4 | 29.0–96.3 | 100.0 | 93.8–100 | 96.9 | 89.3–99.6 |
SCC, squamous cell carcinoma; SUV, standardized uptake value; LN, lymph node; MBPS, mediastinal blood pool; M, muscle; PPV, positive predictive value; NPV, negative predictive value; CI, confidence interval.