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Table 8 Diagnostic accuracy of CESM tested in patients with ACR grade A/B versus the result of biopsy or follow-up as the gold standard for lesion classification

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

Lesion classification by SMG

Final diagnosis

 

Malignant

Benign

Total

Probably malignant (BIRADS 4–6)

35

3

38

Probably benign (BIRADS 1–3)

1

10

11

Total

36

13

49

Statistic

Value

Lower bound (95%)

Upper bound (95%)

Correct classification

92%

84%

100%

Misclassification

8%

0%

16%

Sensitivity

97%

84%

100%

Specificity

77%

49%

92%

False positive rate

23%

3%

43%

False negative rate

3%

0%

8%

Prevalence

73%

61%

86%

Positive predictive value (PPV)

92%

84%

100%

Negative predictive value (NPV)

91%

74%

100%

Positive likelihood ratio (LR+)

4.21

1.56

11.38

Negative likelihood ratio (LR−)

0.04

0.01

0.26

Relative risk

10.13

2.27

45.19

Odds ratio

116.67

15.28

890.87

  1. Data in cross-tables are counts