Table 2.
Summary of the relationship between shear wave elastography parameters and IHC parameters.
| SWE parameters |
Emean±SD (kPa) |
Emax±SD (kPa) |
Emin±SD (kPa) |
Esd±SD (kPa) |
fmass±SD (Hz) |
|---|---|---|---|---|---|
| ER | |||||
| P value | 0.63 | 0.59 | 0.08 | 0.20 | 0.004* |
| Negative (39) | 73.4±36.6 | 153.3±64.9 | 26.6±23.6 | 2.7±1.9 | 166.0±78.2 |
| Positive (225) | 76.6±37.7 | 149.4±65.2 | 31.4±23.0 | 2.4±1.7 | 230.1±132.1 |
| PR | |||||
| P value | 0.48 | 0.77 | 0.10 | 0.24 | 0.001* |
| Negative (50) | 72.5±34.3 | 152.8±64.4 | 26.6±21.7 | 2.7±2.0 | 160.4±76.7 |
| Positive (214) | 77.0±38.3 | 149.3±65.4 | 31.6±23.4 | 2.3±1.6 | 234.7±133.0 |
| HER2 | |||||
| P value | 0.67 | 0.004* | 0.45 | <0.001* | <0.001* |
| Negative (218) | 79.0±37.9 | 151.2±62.9 | 32.5±24.2 | 2.3±1.6 | 235.1±129.4 |
| Positive (31) | 79.1±22.8 | 184.6±45.6 | 25.7±13.1 | 3.6±2.1 | 130.4±66.4 |
| Ki-67 | |||||
| P value | 0.05 | 0.03* | 0.21 | 0.12 | <0.001* |
| <14% (101) | 74.5±38.0 | 144.5±62.9 | 30.5±22.4 | 2.2±1.5 | 262.4±128.9 |
| ≥14% (114) | 83.6±36.0 | 162.5±62.3 | 34.8±24.8 | 2.6±1.9 | 206.6±128.0 |
| IHC subtype | |||||
| P value | 0.01* | <0.001* | 0.01* | 0.01* | <0.001* |
| Luminal A (99) | 75.6±37.5 | 145.6±61.8 | 31.0±22.3 | 2.2±1.5 | 265.5±128.2 |
| Luminal B with HER2− (82) | 84.1±38.8 | 156.1±65.7 | 36.4±25.8 | 2.4±1.7 | 227.8±138.4 |
| Luminal B with HER2+ (23) | 83.5±21.8 | 192.9±39.4 | 27.6±13.1 | 3.6±2.0 | 127.6±59.6 |
| HER2+ (6) | 64.6±24.8 | 162.2±65.4 | 18.8±13.7 | 3.9±2.8 | 125.8±87.9 |
| TN (23) | 75.6±37.5 | 153.1±66.5 | 26.6±21.7 | 2.5±1.7 | 175.8±77.0 |
The numbers in parenthesis are the mass numbers. SD indicates standard deviation.
Abbreviations: IHC= immunohistochemical; ER=estrogen receptor status; PR=progesterone receptor; HER2=human epidermal growth factor receptor 2; TN=triple negative.
*
p<0.05, difference is statistically significant.