Table 9.

Comparison of the performance of the different elastographic indexes in addition to the elastographic evaluation according to the 2 × 2 contingency table

Modality	Sensitivity (%)—(95% CI)	Specificity (%)—(95% CI)	ROC area	PLR (%)—(95% CI)	NLR (%)—(95% CI)	PPV (%)—(95% CI)	NPV (%)—(95% CI)
BIRADS + elasticity	93.2 (81.3–98.6)	62.5 (40.6–81.2)	0.78 (0.67–0.88)	2.48 (1.47–4.19)	0.11 (0.04–0.34)	82.0 (68.6–91.4)	83.3 (58.6–96.4)
BIRADS + Tsukuba	93.2 (81.3–98.6)	70.8 (48.9–87.4)	0.82 (0.72–0.92)	3.19 (1.70–5.99)	0.10 (0.03–0.30)	85.4 (72.2–93.9)	85.0 (62.1–96.8)
BIRADS + Strain	93.2 (81.3–98.6%)	62.5 (40.6–81.2)	0.78 (0.67–0.88)	2.48 (1.47–4.19)	0.11 (0.04–0.34)	82.0 (68.6–91.4)	83.3 (58.6–96.4)
Morph_BI-RADS	93.2 (81.3–98.6%)	75.0 (53.3–90.2%)	0.84 (0.74–0.94)	3.73 (1.86–7.49)	0.09 (0.03–0.28)	87.2 (74.3–95.2)	85.7 (63.7–97.0)

PLR positive likelihood ratio, NLR negative likelihood ratio, ROC receiver operator curve, PPV positive predictive value, NPV negative predictive value