Table 1.
Description of study cases
| Case | Ground truth | Patient age | Breast density | Mass description |
|---|---|---|---|---|
| B3021 | Malignant | 59 | Heterogeneous | (1) Shape: lobulated, Margin: ill-defined, Subtlety: 3 |
| Malignant | (2) Shape: lobulated, Margin: ill-defined, Subtlety: 3 | |||
| Malignant | (3) Shape: lobulated, Margin: ill-defined, Subtlety: 3 | |||
| B3054 | Malignant | 71 | Heterogeneous | Shape: irregular, Margin: speculated, Subtlety: 4 |
| B3070 | Malignant | 56 | Heterogeneous | Shape: irregular—architectural distortion, Margin: spiculated, Subtlety: 2 |
| B3072 | Malignant | 38 | Heterogeneous | Shape: irregular, Margin: ill-defined, Subtlety: 3 |
| B3376 | Malignant | 65 | Heterogeneous | Shape: irregular- architectural distortion, Margin: obscure-spiculated, Subtlety: 3 |
| C0142 | Malignant | 60 | Dense | Shape: architectural distortion, Margin: ill-defined, Subtlety: 3 |
| C0149 | Malignant | 57 | Fibroglandular | Shape: oval, Margin: obscure, Subtlety: 1 |
| C0157 | Malignant | 62 | Fatty | (1) Shape: oval, Margin: microlobulated, Subtlety: 5 |
| Malignant | (2) Shape: oval, Margin: microlobulated, Subtlety: 5 | |||
| Malignant | (3) Shape: oval, Margin: microlobulated, Subtlety: 5 | |||
| C0162 | Malignant | 40 | Heterogeneous | Shape: irregular, Margin: ill-defined, with associated calcifications, Subtlety: 4 |
| C0339 | Malignant | 44 | Heterogeneous | Shape: round, Margin: spiculated, Subtlety: 5 |
| B3122 | Benign | 65 | Fibroglandular | Shape: round, Margin: microlobulated, Subtlety: 3 |
| B3151 | Benign | 60 | Heterogeneous | Shape: lobulated, Margin: circumscribed, Subtlety: 3 |
| C0274 | Benign | 54 | Fibroglandular | Shape: oval, Margin: circumscribed, Subtlety: 5 |
| C0286 | Benign | 38 | Fibroglandular | Shape: round, Margin: obscured, Subtlety: 4 |
| C0311 | Benign | 46 | Fibroglandular | Shape: round, Margin: obscured, Subtlety: 3 |
| B3616 | Normal | 50 | Fibroglandular | N/A |
| B3633 | Normal | 62 | Fatty | N/A |
| B3660 | Normal | 41 | Fibroglandular | N/A |
| B3673 | Normal | 39 | Heterogeneous | N/A |
| B3677 | Normal | 75 | Fibroglandular | N/A |
The breast density, mass shape, and mass margin descriptors are according to the BI-RADS (Breast Imaging Reporting and Data System) lexicon established by the American College of Radiology.44 The subtlety rating ranges from 1 (subtle lesion) to 5 (obvious lesion).