Diagnostic Performance and Additional Value of Elastosonography in Focal Breast Lesions: Statistical Correlation between Size-Dependant Strain Index Measurements, Multimodality-BI-RADS Score, and Histopathology in a Clinical Routine Setting

Table 4

Accuracy calculations for mammography and ultrasound in combination.

	TP^1	FN^2	TN^3	FP^4	Sens.^5	Spec.^6	Acc.^7
>20 mm	9	0	5	4	1.000	0.556	0.778
10–20 mm	12	1	21	9	0.923	0.700	0.767
1–10 mm	7	2	36	4	0.778	0.900	0.878
Total	28	3	62	17	0.903	0.785	0.818

1TP: true positive; ²FN: false negative; ³TN: true negative; ⁴FP: false positive; ⁵Sens.: sensitivity; ⁶Spec.: specificity; ⁷Acc.: accuracy.