From: Contrast-enhanced spectral mammography: successful initial clinical institute experience
Lesion classification by SMG | Final diagnosis | Â | |
---|---|---|---|
Malignant | Benign | Total | |
Probably malignant (BIRADS 4–6) | 33 | 7 | 40 |
Probably benign (BIRADS 1–3) | 3 | 6 | 9 |
Total | 36 | 13 | 49 |
Statistic | Value | Lower bound (95%) | Upper bound (95%) |
Correct classification | 80% | 68% | 91% |
Misclassification | 20% | 9% | 32% |
Sensitivity | 92% | 77% | 98% |
Specificity | 46% | 23% | 71% |
False positive rate | 54% | 30% | 78% |
False negative rate | 8% | 0% | 17% |
Prevalence | 73% | 61% | 86% |
Positive predictive value (PPV) | 83% | 71% | 94% |
Negative predictive value (NPV) | 67% | 36% | 97% |
Positive likelihood ratio (LR+) | 1.70 | 1.02 | 2.84 |
Negative likelihood ratio (LR−) | 0.18 | 0.05 | 0.62 |
Relative risk | 2.48 | 1.06 | 5.76 |
Odds ratio | 9.43 | 2.06 | 43.18 |