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Characteristics of screening mammogram dataset
| BI‐RADS density level (4th edition) | Training (N = 455) | Test (N = 58) | Validation (N = 91) | |||
|---|---|---|---|---|---|---|
| MLO | CC | MLO | CC | MLO | CC | |
| Density 1 | 60 | 60 | 8 | 8 | 30 | 30 |
| Density 2 | 366 | 366 | 46 | 46 | 44 | 44 |
| Density 3 | 454 | 454 | 58 | 58 | 56 | 56 |
| Density 4 | 30 | 30 | 4 | 4 | 52 | 52 |
| Total (# of mammogram images) | 910 | 910 | 116 | 116 | 182 | 182 |
