Table 3.
Performances of DenseNet-121 in Data Set 1 and Data Set 2. Parentheses show 95% CIs.
| Test Set | Radiographic finding | AUC | Sensitivity | Specificity | PLR | NLR |
|---|---|---|---|---|---|---|
| Data Set 1 | Alveolar pattern | 0.80 (0.66–0.94) | 0.95 (0.64–1) | 0.33 (0.27–0.40) | 1.38 (1.1–1.7) | 0.23 (0.04–1.5) |
| Data Set 2 | Alveolar pattern | 0.83 (0.8–0.87) | 0.95 (0.9–0.98) | 0.41 (0.37–0.45) | 1.61(1.5–1.7) | 0.12(0.06–0.3) |
| Data Set 1 | Bronchial pattern | 0.69 (0.59–0.8) | 0.95 (0.66–1) | 0.44 (0.37–0.52) | 1.67 (1.4–2) | 0.16(0.02–1.1) |
| Data Set 2 | Bronchial pattern | 0.70 (0.63–0.77) | 0.95 (0.83–1) | 0.17 (0.14–0.20) | 1.13 (1–1.2) | 0.37 (0.1–1.1) |
| Data Set 1 | Cardiomegaly | 0.87 (0.80–0.93) | 0.98 (0.89–1) | 0.24 (0.17–0.31) | 1.28 (1.2–1.4) | 0.09 (0.01–0.6) |
| Data Set 2 | Cardiomegaly | 0.98 (0.85–0.91) | 0.95 (0.87–0.96) | 0.65 (0.61–0.99) | 2.67 (2.4–3) | 0.11(0.06–0.2) |
| Data Set 1 | Interstitial pattern | 0.78 (0.65–0.91) | 0.95 (0.52–1) | 0.55 (0.44–0.58) | 1.82 (1.4–2.4) | 0.22(0.03–1.4) |
| Data Set 2 | Interstitial pattern | 0.70 (0.64–0.77) | 0.95 (0.84–1) | 0.25 (0.22–0.23) | 1.26(1.2–1.4) | 0.23(0.08–0.7) |
| Data Set 1 | Mass | 0.64 (0.5–0.78) | 0.95 (0.74–1) | 0.04 (0.02–0.07) | 0.98 (0.9–1.1) | 1.44 (0.2–11.1) |
| Data Set 2 | Mass | 0.59 (0.49–0.7) | 0.95 (0.80–1) | 0.05 (0.03–0.07) | 0.99(0.9–1.1) | 1.27 (0.3–5.1) |
| Data Set 1 | Megaesophagus | 0.66 (0.42–0.9) | 0.95 (0.36–1) | 0.17 (0.1–0.22) | 1 (0.7–1.4) | 1 (0.2–6.1) |
| Data Set 2 | Megaesophagus | 0.69 (0.58–0.79) | 0.95 (0.76–1) | 0.28 (0.26–0.32) | 1.32(1.2–1.5) | 0.17 (0.03–1.2) |
| Data Set 1 | Pleural effusion | 0.97 (0.93–1) | 0.95 (0.64–1) | 0.83 (0.77–0.88) | 5.51(3.9–7.8) | 0.09 (0.01–0.6) |
| Data Set 2 | Pleural effusion | 0.95 (0.93–0.98) | 0.95 (0.73–1) | 0.89 (0.82–0.88) | 6.27 (5.1–7.8) | 0.06 (0.01–0.4) |
| Data Set 1 | Pneumothorax | 0.56 (0.15–0.96) | 0.95 (0.73–1) | 0.17 (0.07–0.63) | 0.8 (0.4–1.8) | 1.97 (0.4–10) |
| Data Set 2 | Pneumothorax | 0.71 (0.6–0.82) | 0.95 (0.74–1) | 0.22 (0.19–0.26) | 1.22(1.1–1.4) | 0.24 (0.04–1.6) |
| Data Set 1 | Unremarkable | 0.84 (0.79–0.9) | 0.95 (0.90–0.99) | 0.56 (0.46–0.66) | 2.16(1.7–2.7) | 0.079 (0.03–0.2) |
| Data Set 2 | Unremarkable | 0.84 (0.81–0.87) | 0.95 (0.92–0.97) | 0.42 (0.36–0.48) | 1.63(1.5–1.8) | 0.12 (0.08–0.2) |
AUC area under the receiver operator curve, PLR positive likelihood ratio, NLR negative likelihood ratio.
Most relevant results have been bolded.