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Table 4 Diagnostic performance of DM in characterization of breast masses according to shape, margins and density

From: Three-dimensional tomosynthesis versus two-dimensional mammography in detection and characterization of different breast lesions

Mass on DM Pathology Total Sensitivity Specificity PPV NPV Accuracy AUC
Shape benign malignant
Irregular 3 (FP) 5 (TP) 8 (47.1%) 62.5% 66.7% 62.5% 66.7% 64.7% 0.646
Regular 6 (TN) 3(FN) 9 (52.9%)
Margins          
Ill defined 1 (FP) 2 (TP) 3 (17.6%)       
Speculated 1 (FP) 4 (TP) 5 (29.4%) 75% 77.8% 75% 77.8% 76.5% 0.764
Well defined 7 (TN) 2 (FN) 9 (52.9%)
Density          
Isodense 4 (TN) 0 (FN) 4 (23.5%) 100% 44.4% 61.5% 100% 70.6% 0.722
Hyper-dense 5 (FP) 8 (TP) 13 (76.5%)
Total 9 (52.9%) 8 (47.1%) 17