Table 3.
Figure of merit (FOM) (95% confidence interval) of jackknife free-response receiver operating curve (JAFROC) and reproducibility comparisons in terms of PPA and CPPA at five-different cutoff values (the number of false positives per CXR was 0.1, 0.2, 0.3, 0.4, and 0.5) of four CNNs based detection algorithms and two readers on nodule and mass case.
| Algorithms and readers | FOM (95% CI) | PPA (%) | CPPA (%) |
|---|---|---|---|
| Mask R-CNN | 0.87 (0.83–0.91) | 96.52 ± 0.51 | 93.18 ± 0.81 |
| RetinaNet | 0.84 (0.78–0.88)* | 94.23 ± 0.00 | 89.09 ± 0.00 |
| eDenseYOLO | 0.89 (0.85–0.93) | 97.87 ± 0.08 | 95.80 ± 0.22 |
| ASPP U-Net | 0.85 (0.80–0.89)* | 95.04 ± 0.11 | 90.57 ± 0.19 |
| R1 | 96.55 | 93.33 | |
| R2 | — | 94.98 | 90.43 |
(*p-value < 0.05 between eDenseYOLO and others for FOM).