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Table 3 Differences of breast cancer SWE anisotropy parameters in conventional ultrasound

From: Relationship of shear wave elastography anisotropy with tumor stem cells and epithelial-mesenchymal transition in breast cancer

Items

Grouping

N

Afmax

Afmean

Afsd

Afratio

Admax (k Pa)

Admean (k Pa)

Adsd (k Pa)

Adratio

Boundary

Closely connected

62

1280.601 ± 2044.651

690.760 ± 843.965

30.560 ± 43.260

14.950 ± 23.245

3.072 ± 36.075

 − 5.298 ± 26.048

0.516 ± 5.180

 − 0.311 ± 3.900

Hyperechoic halo

57

4478.101 ± 5671.559*

1642.758 ± 1925.874

291.792 ± 740.536*

24.607 ± 39.957

3.314 ± 670.758

 − 0.184 ± 41.090

 − 3.630 ± 16.922

1.808 ± 4.683*

Internal echo

Mixed echo

38

4006.894 ± 6037.150

1597.243 ± 2070.524

490.872 ± 1032.938

10.607 ± 20.471

 − 13.572 ± 63.620

 − 12.194 ± 39.163

 − 9.183 ± 20.747

0.272 ± 3.340

Low echo

81

2436.582 ± 3819.525

1012.039 ± 1307.210

53.683 ± 77.4456

22.334 ± 34.787

8.180 ± 490.083

 − 0.248 ± 32.075

 − 0.962 ± 7.324

0.797 ± 4.697

Posterior echo

No change

47

2243.592 ± 3927.642

898.829 ± 1527.459

258.631 ± 767.832

6.780 ± 13.110

 − 3.809 ± 48.627

 − 9.653 ± 29.280

 − 5.587 ± 15.300

0.203 ± 2.673

Enhance

35

1289.005 ± 2505.800

721.051 ± 937.549

21.374 ± 26.313

34.317 ± 40.921

4.350 ± 36.477

 − 5.091 ± 26.986

 − 1.341 ± 15.309

 − 0.436 ± 5.979

Attenuation

37

4950.947 ± 5693.742**

1876.636 ± 1722.928*

112.526 ± 118.505*

24.394 ± 36.910**

12.543 ± 70.792

8.939 ± 43.340

0.048 ± 10.846

2.443 ± 4.389

Blood flow

Not shown

21

5089.468 ± 4953.320

1533.134 ± 1792.920

69.486 ± 81.171

5.916 ± 6.257

3.063 ± 76.196

 − 2.313 ± 41.786

 − 1.413 ± 8.783

 − 0.188 ± 2.593

Intra-lesion signal

74

2868.813 ± 4536.686

1244.147 ± 1548.292

184.157 ± 584.223

23.621 ± 35.432

5.521 ± 54.161

 − 2.093 ± 35.793

 − 2.953 ± 13.353

1.081 ± 4.818

Increased diffuse blood flow around the lesion

24

217.348 ± 315.284**

108.258 ± 143.059*

13.678 ± 13.409

4.152 ± 5.626

 − 10.660 ± 10.735

 − 8.840 ± 5.784

 − 2.960 ± 2.337

 − 1.100 ± 1.808

BI-RADS

4a

18

3390.180 ± 3873.428

1391.892 ± 1098.346

35.232 ± 34.624

8.940 ± 13.534

13.067 ± 62.156

1.850 ± 40.819

 − 0.710 ± 8.141

1.233 ± 3.579

4b

22

844.830 ± 1533.445

886.650 ± 969.893

39.128 ± 42.169

31.589 ± 45.310

 − 17.475 ± 24.830

 − 26.500 ± 14.517

 − 5.138 ± 1.889

 − 5.363 ± 4.455

4c

79

2934.180 ± 4660.317

1136.973 ± 1607.474

133.575 ± 469.924

18.893 ± 31.593

4.789 ± 54.369

 − 0.511 ± 33.973

 − 2.706 ± 13.042

1.348 ± 3.905**

  1. Afmax = [(cross-section maximum elasticity value) − (longitudinal-section maximum elasticity value)]2; Afmean = [(cross-section mean elasticity value) − (longitudinal-section mean elasticity value)]2; Afsd = [(cross-section stand deviation of elasticity value) − (longitudinal-section stand deviation of elasticity value)]2; Afratio = [(cross-section elasticity ratio) − (longitudinal-section elasticity ratio)]2; Admax = cross-section maximum elasticity value-longitudinal-section maximum elasticity value; Admean = cross-section mean elasticity value − longitudinal-section mean elasticity value; Adsd = cross-section stand deviation of elasticity value − longitudinal-section stand deviation of elasticity value; Adratio = cross-section elasticity ratio − longitudinal-section elasticity ratio; BI-RADS = breast imaging reporting and data system. Compared with corresponding subgroup, *P < 0.05, **P < 0.01
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BMC Medical Imaging

ISSN: 1471-2342

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