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) | 84 | 8 | 92 |
Probably benign (BIRADS 1–3) | 2 | 29 | 31 |
Total | 86 | 37 | 123 |
Statistic | Value | Lower bound (95%) | Upper bound (95%) |
Correct classification | 92% | 87% | 97% |
Misclassification | 8% | 3% | 13% |
Sensitivity | 98% | 91% | 100% |
Specificity | 78% | 62% | 89% |
False positive rate | 22% | 9% | 34% |
False negative rate | 2% | 0% | 5% |
Prevalence | 70% | 62% | 78% |
Positive predictive value (PPV) | 91% | 86% | 97% |
Negative predictive value (NPV) | 94% | 85% | 100% |
Positive likelihood ratio (LR+) | 4.52 | 2.44 | 8.35 |
Negative likelihood ratio (LR−) | 0.03 | 0.01 | 0.12 |
Relative risk | 14.15 | 4.30 | 46.57 |
Odds ratio | 152.25 | 34.97 | 662.91 |