AI for Impact on Breast Cancer

Free Annotated Mammogram Dataset to Advance AI Research in Breast Cancer Detection

Collaboration for Women’s Health
Request Access
This dataset provides access to a curated collection of annotated Digital Breast Tomosynthesis (DBT) studies intended to support academic and translational research in breast cancer detection and imaging AI.
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To request access, please complete the application form including institutional affiliation and intended research purpose.

‍Dataset Summary
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558 female patients
• Digital Breast Tomosynthesis (3D Mammography)
• 271 malignant (48.5%) / 287 benign (51.5%) cases
• Average size: 1.34 cm
• Approximately 85% of lesions <2 cm
• Expert segmentation annotations
• DICOM, NRRD, and structured JSON outputs
• Fully de-identified in compliance with HIPAA and GDPR

‍Citation & Acknowledgment
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Users of this dataset are requested to acknowledge the Segmed–iMerit collaboration in any resulting publications or public disclosures, as well as refer to the DBT-2026 preprint, co-authored by clinical experts from Segmed and iMerit, as follow:

Wu J, Perandini L, Batra T, Igoshin S, Bari S, de Araujo AL, Willemink MJ. DBT-2026, a de-identified publicly available dataset of digital breast tomosynthesis exams with ground truth biopsies. medRxiv 2026.03.03.25337924; doi: 10.64898/2026.03.03.25337924.

For additional details, please refer to the Joint Research Use Agreement accepted when submitting the application form, to the Release Announcement or contact andreia@segmed.ai.