Research Article
Predicting of Ki-67 Expression Level Using Diffusion-Weighted and Synthetic Magnetic Resonance Imaging in Invasive Ductal Breast Cancer
Table 2
Clinicopathological and DCE-MRI features of patients with IDC and low (<30%) or high (≥30%) Ki-67 proliferation.
| | Features | Ki-67 < 30% | Ki-67 ≥ 30% | value | | (n = 40) (%) | (n = 57) (%) |
| | Age (year ± SD) | 49.5 ± 9.0 | 49.3 ± 8.4 | 0.936 | | Lesion size (mm ±SD) | 24.4 ± 10.8 | 28.1 ± 15.1 | 0.195 | | Shape | | | 0.771 | | Oval/round | 10 (25.0) | 17 (29.8) | | | Irregular | 30 (75.0) | 40 (70.2) | | | Margin | | | 0.352 | | Circumscribed | 9 (22.5) | 19 (33.3) | | | Noncircumscribed | 31 (77.5) | 38 (66.7) | | | LN metastasis | | | 0.696 | | Positive | 20 (50.0) | 25 (43.9) | | | Negative | 20 (50.0) | 32 (56.1) | | | ER | | | 0.225 | | Positive | 32 (80.0) | 38 (66.7) | | | Negative | 8 (20.0) | 19 (33.3) | | | PR | | | 0.208 | | Positive | 29 (72.5) | 33 (57.9) | | | Negative | 11 (27.5) | 24 (42.1) | | | HER2 | | | 0.836 | | Positive | 11 (27.5) | 18 (31.6) | | | Negative | 29 (72.5) | 39 (68.4) | | | Histologic grade | | | 0.173 | | Grade 1/2 | 36 (90.0) | 44 (77.2) | | | Grade 3 | 4 (10.0) | 13 (22.8) | |
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DCE-MRI, dynamic contrast-enhanced magnetic resonance imaging; IDC, invasive ductal carcinoma; SD, standard deviation; ER, estrogen receptor; PR, progesterone receptor; HER2, human epidermal growth factor receptor 2; LN, lymph node.
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