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Table 2 Quantitative elastic features of the inner and peripheral tissue of the lesions

From: The role of tissue elasticity in the differential diagnosis of benign and malignant breast lesions using shear wave elastography

  Benign Malignant
[Mean] (kPa) [Mean] (kPa) Sensitivity (%) Specificity (%) PPV (%) NPV (%) AUC (95% CI) p Value
Emax 115.81 154.72 66.7 70 71.0 65.6 0.68 (0.56, 0.80) 0.037
Emin 6.06 3.05 87.9 53.3 67.4 80.0 0.71 (0.58, 0.82) 0.004
Emax-3shell 112.45 169.74 60.6 83.3 80.0 65.8 0.76 (0.63, 0.86) 0.000
Emean-3shell 29.77 38.84 84.8 60.0 70.0 78.3 0.73 (0.61, 0.84) 0.006
Emin-3shell 4.89 2.68 78.8 66.7 72.0 74.0 0.73 (0.61, 0.84) 0.002
Emax-2shell 112.51 167.07 78.8 66.7 72.2 74.1 0.75 (0.62, 0.85) 0.001
Emean-2shell 32.28 37.15 60.6 83.3 80.0 65.8 0.70 (0.58, 0.81) 0.014
Emin-2shell 5.41 3.08 72.7 73.3 75.8 73.3 0.73 (0.60, 0.83) 0.002
Emax-1shell 107.27 151.15 66.7 70.0 71.0 65.6 0.70 (0.57, 0.81) 0.004
Emean-1shell 33.67 41.92 57.6 80.0 76.0 63.2 0.70 (0.55, 0.79) 0.017
Emin-1shell 6.51 3.99 63.6 76.7 75.0 65.7 0.70 (0.57, 0.80) 0.026
  1. Abbreviations: PPV positive predictive value, NPV negative predictive value, AUC the area under the receiver operating characteristic curve
  2. p-Value indicates that there is significantly different between those values of overall benign and malignant breast lesions
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