Comparison of diagnostic performance between CNN and ACR TI-RADS
| CNN (95% CI) | ACR TI-RADS (95% CI) | P Value | |
|---|---|---|---|
| Sensitivity | 81.8% (76.1–87.5) | 73.9% (67.4–80.4) | .009 |
| Specificity | 86.1% (83.3–88.9) | 93.7% (91.7–95.6) | <.001 |
| Accuracy | 85.1% (82.6–87.7) | 89.1% (86.9–91.3) | .003 |
| Positive predictive value | 64.0% (57.7–70.3) | 77.8% (71.6–84.1) | <.001 |
| Negative predictive value | 94.0% (92–96) | 92.2% (90.1–94.4) | .046 |
| AUCa | 0.917 (0.895-0.936) | 0.891 (0.867-0.912) | .017 |
↵a The AUCs of the CNN using a malignancy risk percentage between 0 and 100 and ACR TI-RADS categories using a TR category from 1 to 5 were compared as continuous values.