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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  
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
  1. Data in cross-tables are counts