Table 18 Diagnostic accuracy of marked enhancement on CESM in patients with ACR grade C/D
From: Contrast-enhanced spectral mammography: successful initial clinical institute experience
Lesion classification by SMG | Final diagnosis | Â | |
|---|---|---|---|
Malignant | Benign | Total | |
Marked enhancement | 38 | 2 | 40 |
No to moderate enhancement | 12 | 22 | 34 |
Total | 50 | 24 | 74 |
Statistic | Value | Lower bound (95%) | Upper bound (95%) |
Correct classification | 81% | 72% | 90% |
Misclassification | 19% | 10% | 28% |
Sensitivity | 76% | 62% | 86% |
Specificity | 92% | 73% | 99% |
False positive rate | 8% | 0% | 19% |
False negative rate | 24% | 13% | 35% |
Prevalence | 68% | 57% | 78% |
Positive predictive value (PPV) | 95% | 88% | 100% |
Negative predictive value (NPV) | 65% | 49% | 81% |
Positive likelihood ratio (LR+) | 9.12 | 2.40 | 34.69 |
Negative likelihood ratio (LR−) | 0.26 | 0.16 | 0.44 |
Relative risk | 2.69 | 1.72 | 4.21 |
Odds ratio | 34.83 | 8.14 | 149.11 |