Anatomically guided diffusion pretraining on 3D CT reaches 67.8 Dice on BTCV organ segmentation, beating restorative baselines but not the contrastive vox2vec.
It incurs high annotation costs but also leads to models that often suffer from poor generaliza- tion to new data sources
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Medical Semantic Segmentation with Diffusion Pretrain
Anatomically guided diffusion pretraining on 3D CT reaches 67.8 Dice on BTCV organ segmentation, beating restorative baselines but not the contrastive vox2vec.