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BrainSegFounder (BraTS-finetuned SwinUNETR) -- BrainSegFounder BraTS-finetuned SwinUNETR (fold 0)

Description

BrainSegFounder (Cox et al., lab-smile), ported to JAX / Equinox. BrainSegFounder is a 3D medical foundation model built by staged self-supervised pretraining (UK Biobank then BraTS) of a MONAI SwinUNETR, then fine-tuned for BraTS tumour segmentation. This port is the BraTS-finetuned full SwinUNETR (encoder + decoder), reusing the shared nimox SwinUNETR primitive. The UK-Biobank stage-1 foundation weights are not part of the public release (UKB data-sharing terms); the available checkpoints are the BraTS-stage SSL backbone and this BraTS-finetuned segmentation model.

Intended use

Brain-tumour sub-region segmentation from 4-channel BraTS MRI (T1, T1ce, T2, FLAIR), per-channel nonzero z-score normalised, each spatial dim a multiple of 32. Returns 3 raw-logit channels for the overlapping sub-regions tumour core (TC), whole tumour (WT), enhancing tumour (ET); apply a per-channel sigmoid and threshold at 0.5 (multi-label). The v0 bundle is the network forward only (no sliding-window inference).

Usage

from ilex.models.brainsegfounder import BrainSegFounder
model = BrainSegFounder.from_pretrained('ilex-hub/brainsegfounder.brats.1')

Authors

Cox J., et al. (lab-smile)

Citation

Cox J., Liu Z., Zhao Y., et al. (2024). BrainSegFounder: Towards 3D Foundation Models for Neuroimage Segmentation. Medical Image Analysis. arXiv:2406.10395. Backbone: Hatamizadeh A., et al. (2022). Swin UNETR. arXiv:2201.01266.

References

  • Cox J., Liu Z., Zhao Y., et al. (2024). BrainSegFounder: Towards 3D Foundation Models for Neuroimage Segmentation. Medical Image Analysis. arXiv:2406.10395.
  • Code / weights: https://github.com/lab-smile/BrainSegFounder
  • Backbone: MONAI SwinUNETR (Hatamizadeh A., et al. 2022; arXiv:2201.01266).

License

HF Hub license tag: gpl-3.0

Effective terms: GNU General Public License v3.0 (the BrainSegFounder authors / lab-smile), on both the code (https://github.com/lab-smile/ BrainSegFounder) and the released weights. GPL-3.0 is a copyleft license: redistribution is permitted, but derivative works that incorporate the weights must themselves be GPL-3.0-licensed and provide source. The ilex JAX / Equinox port re-expresses the weights and is therefore distributed under GPL-3.0 for this bundle (the ilex port code is Apache-2.0 / GPL-3.0 dual; the GPL-3.0 arm governs this re-expression). The MONAI SwinUNETR architecture is itself Apache-2.0; the GPL-3.0 obligation comes from the BrainSegFounder weights. The UK-Biobank stage-1 pretrained weights are not redistributed here (UKB terms).

Upstream license reference: https://github.com/lab-smile/BrainSegFounder/blob/main/LICENSE

Copyright

Network architecture (MONAI SwinUNETR) and pretrained weights: copyright (c) the BrainSegFounder authors, released under the GNU General Public License v3.0 (GPL-3.0). JAX / Equinox port: copyright (c) the ilex authors, released under the Apache-2.0 / GPL-3.0 dual license used by ilex itself. Redistribution of the weights is subject to GPL-3.0.

Upstream source

Original weights / reference implementation: https://github.com/lab-smile/BrainSegFounder

Provenance

This artefact was produced by ilex's save/load pipeline. The architecture is implemented in ilex.models.brainsegfounder.BrainSegFounder and the weights have been converted from their upstream format. See the upstream source above for the canonical reference.

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