Table 3. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of CAD for different types of lesions in breast expressed as number and/or percentage.

	Radiologists	CAD	Sensitivity	Specificity	PPV	NPV
All lesionsa	89 (100%)	49 (54%)	54%	16%	23%	37%
Lesions without ALNb,c	69 (100%)	29 (42%)	47%	16%	19%	43%
Lesions without benign masses and ALNd	18 (100%)	8 (44%)	44%	16%	6%	71%
Suspicious lesions	7 (100%)	6 (86%)	85%	16%	5%	96%

CAD = computer aided detection; ALN = axillary lymph nodes; ^aarchitectural distortion/asymmetry, morphologically suspicious, indeterminate or benign lesions, and axillary lymph nodes; ^barchitectural distortion/asymmetry, morphologically suspicious, indeterminate or benign lesions; ^caxillary lymph nodes; ^darchitectural distortion/asymmetry, morphologically suspicious, and indeterminate lesions