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README.md

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+---
+license: other
+license_name: attribution
+tags:
+  - medical-imaging
+  - segmentation
+  - prostate
+  - mri
+  - multi-site
+task_categories:
+  - image-segmentation
+pretty_name: "Multi-Site Prostate MRI Segmentation (BIDMC / FedDG)"
+---
+
+# Multi-Site Prostate MRI Segmentation Dataset
+
+T2-weighted prostate MRI volumes from 6 clinical sites, curated for domain generalization research in medical image segmentation.
+
+## Dataset Details
+
+| Property | Value |
+|---|---|
+| **Modality** | MRI (T2-weighted) |
+| **Organ** | Prostate (whole gland) |
+| **Total cases** | 116 |
+| **Format** | NIfTI (.nii.gz) |
+
+### Sites
+
+| Site | Institution | Cases |
+|---|---|---|
+| RUNMC | Radboud Univ. Nijmegen Medical Centre | 30 |
+| BMC | Boston Medical Center | 30 |
+| I2CVB | Init. for Collaborative CV Benchmarking | 19 |
+| UCL | University College London | 13 |
+| BIDMC | Beth Israel Deaconess Medical Center | 12 |
+| HK | Haukeland University Hospital | 12 |
+
+## File Structure
+
+Each site folder contains paired volumes:
+- `CaseXX.nii.gz` — T2-weighted MRI volume
+- `CaseXX_segmentation.nii.gz` — Binary prostate mask
+
+## Citation
+
+```bibtex
+@inproceedings{liu2021feddg,
+  title={FedDG: Federated Domain Generalization on Medical Image Segmentation via Episodic Learning in Continuous Frequency Space},
+  author={Liu, Quande and Chen, Cheng and Qin, Jing and Dou, Qi and Heng, Pheng-Ann},
+  booktitle={CVPR},
+  year={2021}
+}
+```