Table 3.
Relationships between mean SWV ratio and clinicopathologic features of 143 invasive ductal cancers
| Clinicopathologic features | < 2.16 | 2.16-3.95 | ≥ 3.95 | Median SWV ratio |
|---|---|---|---|---|
| Agea | ||||
| < 50 (n = 28) | 5 | 13 | 10 | 3.17 |
| ≥ 50 (n = 115) | 20 | 55 | 40 | 3.88 |
| Tumor sizeb | ||||
| < 10 mm (n = 11) | 9 | 2 | 0 | 1.63 |
| 10-20 mm (n = 53) | 14 | 22 | 17 | 3.13 |
| ≥ 20 mm (n = 79) | 2 | 29 | 48 | 4.29 |
| Lymph nodal metastasisc | ||||
| Negative (n = 89) | 20 | 37 | 32 | 3.43 |
| Positive (n = 54) | 5 | 10 | 39 | 4.34 |
| Histological graded | ||||
| Grade 1 (n = 12) | 4 | 3 | 5 | 3.50 |
| Grade 2 (n = 86) | 18 | 35 | 33 | 3.34 |
| Grade 3 (n = 45) | 3 | 15 | 27 | 4.25 |
| ER expressiona | ||||
| Negative (n = 59) | 7 | 25 | 27 | 3.78 |
| Positive (n = 84) | 18 | 28 | 38 | 3.72 |
| PR expressiona | ||||
| Negative (n = 67) | 9 | 28 | 30 | 3.82 |
| Positive (n = 76) | 16 | 25 | 35 | 3.70 |
| C-erbB-2 expressiona | ||||
| Negative (n = 39) | 1 | 10 | 28 | 3.78 |
| Positive (n = 104) | 14 | 41 | 49 | 3.76 |
ER: estrogen receptor, PR: C-erbB-2: progesterone receptor human epidermal growth factor receptor 2, SWV ratio (breast mass/adjacent breast tissue): shear wave velocity ratio.
a
P > 0.05;
b
P < 0.001;
c
P = 0.001;
d
P = 0.007.