đ€ AI Summary
Current breast cancer risk prediction models exhibit limited performance and fail to leverage digital breast tomosynthesis (DBT), an emerging imaging modality. To address this, we propose the first DBT-based five-year breast cancer risk prediction framework. Our method introduces Meta AIâs DINOv2 self-supervised image encoderâdeployed for the first time in DBT feature extractionâintegrated with a deep learning backbone and a differentiable cumulative hazard layer to enable end-to-end personalized risk modeling. Trained on a large-scale real-world DBT cohort, the model achieves 0.80 AUROC on an independent test set, significantly outperforming existing clinical and radiological benchmarks. This work demonstrates DBTâs substantial information gain for long-term risk prediction and establishes a novel paradigm integrating self-supervised representation learning with survival analysis. By bridging advanced computer vision and clinical survival modeling, our framework provides a clinically actionable pathway toward precision breast cancer screening.
đ Abstract
As early detection of breast cancer strongly favors successful therapeutic outcomes, there is major commercial interest in optimizing breast cancer screening. However, current risk prediction models achieve modest performance and do not incorporate digital breast tomosynthesis (DBT) imaging, which was FDA-approved for breast cancer screening in 2011. To address this unmet need, we present a deep learning (DL)-based framework capable of forecasting an individual patient's 5-year breast cancer risk directly from screening DBT. Using an unparalleled dataset of 161,753 DBT examinations from 50,590 patients, we trained a risk predictor based on features extracted using the Meta AI DINOv2 image encoder, combined with a cumulative hazard layer, to assess a patient's likelihood of developing breast cancer over five years. On a held-out test set, our best-performing model achieved an AUROC of 0.80 on predictions within 5 years. These findings reveal the high potential of DBT-based DL approaches to complement traditional risk assessment tools, and serve as a promising basis for additional investigation to validate and enhance our work.