Table 2 Discrimination performances and localization accuracy of the CAD by abnormalities and hospitals.
Consolidation | Pneumothorax | |||||
|---|---|---|---|---|---|---|
Pooled | BMC | PNUH | Pooled | BMC | PNUH | |
Image-level | ||||||
AUROC (95% CI) | 0.960 (0.945, 0.975) | 0.986 (0.974, 0.999) | 0.932 (0.905, 0.960) | 0.978 (0.965, 0.991) | 0.965 (0.940, 0.990) | 0.987 (0.974, 1.000) |
Sensitivity (95% CI) | 0.933 (0.899, 0.959) | 0.980 (0.943, 0.996) | 0.887 (0.825, 0.933) | 0.956 (0.923, 0.978) | 0.930 (0.861, 0.971) | 0.973 (0.933, 0.993) |
Specificity (95% CI) | 0.948 (0.930, 0.963) | 0.986 (0.967, 0.995) | 0.915 (0.883, 0.940) | 0.996 (0.989, 0.999) | 0.998 (0.986, 1.000) | 0.995 (0.982, 0.999) |
Lesion-level | ||||||
Sensitivity (95% CI) | 0.912 (0.879, 0.938) | 0.949 (0.909, 0.976) | 0.872 (0.816, 0.916) | 0.941 (0.906, 0.966) | 0.901 (0.830, 0.949) | 0.969 (0.929, 0.990) |
False positive lesions per case (false positive lesions/cases) | 0.104 (109/1050) | 0.078 (39/500) | 0.127 (70/550) | 0.020 (21/1050) | 0.018 (9/500) | 0.022 (12/550) |
Dice (IQR) | 0.691 (0.664, 0.718) | 0.766 (0.733, 0.798) | 0.613 (0.572, 0.655) | 0.798 (0.770, 0.826) | 0.747 (0.696, 0.799) | 0.833 (0.803, 0.863) |
