Table 2 Results of 4DST and FDG-PET/CT for N staging in 27 patients with NSCLC who underwent lymph node resection
Subject | PET/CT | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
|---|---|---|---|---|---|---|
Per-nodal station | 4DST | 82.4 (0.64 to 1.00) | 71.7 (0.63 to 0.80) | 31.8 (0.18 to 0.46) | 96.2 (0.92 to 1.00) | 73.2 (0.65 to 0.81) |
FDG | 29.4 (0.08 to 0.51) | 85.8 (0.79 to 0.93) | 25.0 (0.06 to 0.44) | 88.3 (0.82 to 0.95) | 78.0 (0.71 to 0.85) | |
Per-patient | 4DST | 66.7 (0.36 to 0.98) | 33.3 (0.12 to 0.55) | 33.3 (0.16 to 0.51) | 66.7 (0.36 to 0.98) | 44.4 (0.26 to 0.63) |
FDG | 22.2 (−0.05 to 0.49) | 61.1 (0.39 to 0.84) | 22.2 (−0.05 to 0.49) | 61.1 (0.39 to 0.84) | 48.1 (0.29 to 0.67) |