Table 2 Differences in SWE parameters of cross section and longitudinal section of breast cancer of conventional ultrasound
Items | Grouping | Cases | E-maximum cross section diameter(mm) | E-maximum longitudinal section diameter(mm) | Emax (cross section) (k Pa) | Emax (longitudinal section) (k Pa) | Emean (cross section) (k Pa) | Emean (longitudinal section) (k Pa) | Esd (cross section) (k Pa) | Esd (longitudinal section) (k Pa) | Eratio (cross section) | Eratio (longitudinal section) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Boundary | Closely connected | 62 | 17.912 ± 4.994 | 17.321 ± 4.354 | 86.060 ± 45.765 | 82.914 ± 41.734 | 55.481 ± 34.786 | 60.905 ± 31.074 | 13.460 ± 5.205 | 15.595 ± 6.374 | 7.350 ± 4.199 | 7.669 ± 3.168 |
Hyperechoic halo | 57 | 20.514 ± 6.944 | 19.681 ± 6.713 | 120.400 ± 68.395* | 117.086 ± 75.431* | 79.765 ± 43.264** | 79.949 ± 48.472 | 18.822 ± 11.519 | 22.451 ± 19.556 | 10.386 ± 7.429 | 8.578 ± 6.872 | |
Internal echo | Mixed echo | 38 | 21.589 ± 5.632 | 19.822 ± 4.896 | 142.328 ± 63.540 | 155.900 ± 82.714 | 90.800 ± 42.617 | 102.994 ± 55.940 | 21.889 ± 10.111 | 31.072 ± 24.808 | 10.678 ± 8.543 | 10.406 ± 8.174 |
Low echo | 81 | 18.405 ± 6.071 | 18.015 ± 5.854 | 90.285 ± 53.415** | 82.105 ± 42.272** | 59.789 ± 37.496** | 60.036 ± 29.569** | 14.225 ± 8.061** | 15.187 ± 6.310** | 8.210 ± 5.109 | 7.413 ± 3.802 | |
Posterior echo | No change | 47 | 17.444 ± 6.006 | 16.759 ± 6.151 | 92.926 ± 57.482 | 96.735 ± 70.160 | 59.650 ± 36.002 | 69.303 ± 43.949 | 13.921 ± 8.747 | 19.674 ± 19.992 | 8.535 ± 7.042 | 8.332 ± 6.724 |
Enhance | 35 | 17.455 ± 5.575 | 17.214 ± 4.701 | 71.495 ± 42.604 | 67.145 ± 23.514 | 44.218 ± 28.780 | 49.309 ± 21.402 | 11.682 ± 3.602 | 13.023 ± 2.364 | 6.427 ± 5.031 | 6.864 ± 3.586 | |
Attenuation | 37 | 23.226 ± 4.788** | 22.052 ± 4.085** | 145.083 ± 54.085** | 132.539 ± 59.082** | 99.156 ± 37.776** | 90.217 ± 42.165** | 23.104 ± 9.385** | 23.056 ± 9.234** | 11.365 ± 4.500** | 8.922 ± 3.782 | |
Blood flow | None or undetectable | 21 | 14.425 ± 1.521 | 14.813 ± 1.968 | 132.263 ± 56.249 | 129.200 ± 49.720 | 79.550 ± 25.219 | 81.863 ± 26.564 | 17.100 ± 5.284 | 18.513 ± 5.406 | 9.275 ± 3.176 | 9.463 ± 3.689 |
Intra-lesion signal | 74 | 19.292 ± 6.277 | 18.720 ± 5.822 | 98.741 ± 57.638 | 93.220 ± 59.850 | 65.339 ± 39.775 | 67.433 ± 39.759 | 15.551 ± 9.197 | 18.552 ± 15.679 | 9.369 ± 6.597 | 8.287 ± 5.663 | |
Increased diffuse blood flow around the lesion | 24 | 21.910 ± 5.323* | 19.530 ± 6.023 | 98.800 ± 72.969 | 109.460 ± 79.270 | 65.940 ± 55.564 | 74.780 ± 57.509 | 17.630 ± 11.226 | 20.590 ± 12.326 | 4.730 ± 1.572* | 5.830 ± 2.108 | |
BI-RADS | 4a | 18 | 14.220 ± 6.737 | 12.380 ± 2.848 | 87.480 ± 79.255 | 71.800 ± 10.133 | 50.520 ± 45.899 | 52.520 ± 30.195 | 10.840 ± 8.271 | 11.700 ± 0.822 | 5.920 ± 4.272 | 4.440 ± 0.329 |
4b | 22 | 13.025 ± 5.662 | 14.988 ± 5.192 | 51.588 ± 10.885 | 69.063 ± 15.450 | 26.788 ± 4.175 | 44.238 ± 21.487 | 8.725 ± 1.914 | 13.863 ± 0.650 | 2.800 ± 0.949 | 8.163 ± 3.551 | |
4c, 5 | 79 | 20.242 ± 5.526** | 19.302 ± 5.491** | 109.382 ± 59.035* | 104.592 ± 66.123 | 72.948 ± 39.889** | 69.339 ± 39.770 | 17.238 ± 9.196** | 19.944 ± 15.601* | 9.712 ± 6.111** | 8.364 ± 5.502* |