Table 2.
Sensitivity, PPV, Specificity, and NVP of the test data in COVIDx CT-2A benchmark datasets.
| Network | Sensitivity (%) | PPV (%) | Specificity (%) | NPV (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal | CP | NCP | Normal | CP | NCP | Normal | CP | NCP | Normal | CP | NCP | |
| COVID-Net CT-1 | 98.8 | 99.0 | 80.2 | 96.1 | 90.2 | 97.6 | 96.3 | 95.7 | 99.4 | 98.9 | 99.6 | 94.2 |
| COVID-Net CT-2 L | 99.0 | 98.2 | 96.2 | 99.4 | 97.2 | 96.7 | 99.5 | 98.8 | 99.0 | 99.1 | 99.3 | 98.8 |
| COVID-Net CT-2 S | 98.9 | 98.1 | 95.7 | 99.3 | 97.0 | 96.4 | 99.3 | 98.8 | 98.9 | 99.0 | 99.2 | 98.7 |
| Random(ours) | 97.9 | 98.6 | 96.9 | 98.9 | 97.5 | 96.4 | 99.0 | 99.0 | 98.9 | 98.1 | 99.4 | 99.1 |
| Bit-S(ours) | 99.0 | 99.3 | 97.9 | 99.6 | 97.9 | 98.4 | 99.6 | 99.1 | 99.5 | 99.1 | 99.7 | 99.4 |
| Bit-M(ours) | 99.3 | 99.6 | 98.7 | 99.8 | 98.9 | 98.5 | 99.8 | 99.6 | 99.5 | 99.3 | 99.8 | 99.6 |