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Table 1 Diagnostic performance of conventional ultrasound

From: Shear wave elastography versus strain elastography to identify benign superficial lymph nodes: sonographic assessment with histopathological confirmation

 

Benign

(n = 37)

Malignant

(n = 78)

p

Sensitivity

Specificity

PPV

NPV

Accuracy

No

%

No

%

Short Axis

 < 8 mm

29

78.4

15

19.2

 < 0.001*

80.7

78.4

88.7

65.9

80.0

 > 8 mm

8

21.6

63

80.8

Long /Short axis

 ≥ 2

20

54.1

31

39.7

0.165

60.3

54.1

73. 5

39.2

58.26

 < 2

17

45.9

47

60.3

Hilum

Present

16

43.2

22

28.2

0.109

71.8

43.3

72.7

42.1

62.6

Lost

21

56.8

56

71.8

Vascularity

Normal

30

81.1

25

32.1

 < 0.001*

67.9

81.1

86.9

54.5

74.8

Abnormal

7

18.9

53

67.9

  1. p: p value for comparing between benign and malignant
  2. *Statistically significant at p ≤ 0.05
  3. PPV Positive predictive value, NPV Negative predictive value