Table 3.
Diagnostic accuracy of pulmonary nodules by lung RADS and PNI-GARS
| Type | System | TP | FN | FP | TN | Se (%, 95%CI) |
Sp (%,95%CI) |
AR (%,95%CI) |
|---|---|---|---|---|---|---|---|---|
| SN | Lung | 1839 | 12 | 757 | 410 | 99.4(99.0−99.7) | 35.1(32.4–37.9) | 74.5(73.0−76.1) |
| (n = 3018) | PNI | 1848 | 3 | 569 | 598 | 99.8(99.7–100) | 51.2(48.4–54.1) | 81.1(79.6–82.4) |
| PSN | Lung | 1578 | 26 | 99 | 6 | 98.4(97.8–99.0) | 5.7(1.2–10.2) | 92.7(91.5–93.9) |
| (n = 1709) | PNI | 1602 | 2 | 91 | 14 | 99.9(99.7–100) | 13.3(6.7–19.9) | 94.6(93.5–95.6) |
| GGN | Lung | 0 | 2488 | 0 | 566 | 0(0) | 100(100) | 18.5(17.2–19.9) |
| (n = 3054) | PNI | 2401 | 87 | 262 | 304 | 96.5(95.8–97.2) | 53.7(49.6–57.8) | 88.6(87.4–89.7) |
| Total | Lung | 3417 | 2526 | 856 | 982 | 57.5(56.2–58.8) | 53.4(51.1–55.7) | 56.5(55.4–57.6) |
| (n = 7781) | PNI | 5851 | 92 | 922 | 916 | 98.5(98.1–98.8) | 49.8(47.5–52.1) | 87.0(86.2–87.7) |
Abbreviations: Lung Lung-RADS, PNI PNI-GARS, TP true positive, FN false negative, FP false positive, TN true negative, Se sensitivity, Sp specificity, AR agreement rate, CI confidence interval. SN solid nodule, PSN partial solid nodule, GGN ground glass nodule