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Table 17 Diagnostic accuracy of marked enhancement on CESM in patients with ACR grade A/B

From: Contrast-enhanced spectral mammography: successful initial clinical institute experience

Lesion classification by SMG Final diagnosis  
Malignant Benign Total
Marked enhancement 21 1 22
No to moderate enhancement 15 12 27
Total 36 13 49
Statistic Value Lower bound (95%) Upper bound (95%)
Correct classification 67% 54% 80%
Misclassification 33% 20% 46%
Sensitivity 58% 42% 73%
Specificity 92% 64% 100%
False positive rate 8% 0% 20%
False negative rate 42% 26% 57%
Prevalence 73% 61% 86%
Positive predictive value (PPV) 95% 87% 100%
Negative predictive value (NPV) 44% 26% 63%
Positive likelihood ratio (LR+) 7.58 1.13 50.86
Negative likelihood ratio (LR−) 0.45 0.30 0.69
Relative risk 1.72 1.22 2.42
Odds ratio 16.80 2.74 103.19
  1. Data in cross-tables are counts