Multimodal pseudo-CT synthesis for PET attenuation correction using separate modality encoding and topogram conditioning
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Abstract (arXiv)
We participated in the BIC-MAC Challenge with a multimodal 3D patch-based U-Net for pseudo-CT generation from NAC-PET, MRI, and 2D topograms. By using separate PET and MR encoders, multi-scale feature fusion, and FiLM-based topogram conditioning at the bottleneck, we obtain a model that integrates complementary cross-modal information while reducing reliance on precise voxel-wise correspondence between modalities. Our final submission can be found: https://github.com/rrr-uom-projects/BIC-MAC-MICCAI2026
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References · 2
- 2015Deep Residual Learning for Image Recognitioncited by 52,096
- 2017Squeeze-and-Excitation Networkscited by 4,789
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