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Table 4 Correlation of anisotropy coefficient with quadrant location

From: Ultrasound shear wave elastography of breast lesions: correlation of anisotropy with clinical and histopathological findings

Anisotropy Coefficients

Quadrant Location

Total

Benign

Malignant

Inner half

Outer half

Inner half

Outer half

Inner half

Outer half

ADmax (kPa)

12.89 ± 35.95

5.60 ± 38.96

15.92 ± 31.42

6.10 ± 23.35

11.96 ± 37.47

5.25 ± 47.05

ADmean (kPa)

5.96 ± 14.32 *

1.77 ± 13.03

8.15 ± 13.57 *

1.60 ± 6.83

5.29 ± 14.61

1.89 ± 16.05

ADsd (kPa)

2.35 ± 8.39

1.02 ± 8.87

2.11 ± 5.94

0.81 ± 3.24

2.42 ± 9.06

1.16 ± 11.28

ADratio

0.13 ± 3.77

0.61 ± 4.05

0.32 ± 2.53

0.38 ± 1.63

0.07 ± 4.10

0.77 ± 5.12

AFmax (kPa2/100)

14.40 ± 23.45

15.42 ± 30.63

11.70 ± 27.43

5.76 ± 24.38

15.20 ± 22.32

22.32 ± 32.78

AFmean (kPa2/10)

23.77 ± 49.40

17.20 ± 38.68

23.97 ± 50.67 *

4.87 ± 12.54

23.72 ± 49.41

25.90 ± 47.58

AFsd (kPa2/10)

7.49 ± 11.88

7.93 ± 16.71

3.75 ± 6.95

1.10 ± 4.21

8.64 ± 12.86

12.75 ± 20.21

AFratio

14.05 ± 23.30

16.72 ± 38.79

6.10 ± 12.04

2.77 ± 9.64

16.50 ± 25.39

26.56 ± 47.68

  1. *Inner half vs. Outer half:
  2. Total lesions: ADmean P = 0.034
  3. Benign group: ADmean P = 0.004; AFmean P = 0.003