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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