ResearchResearch paperComputer Vision1 source · Oct 15, 2026

Mixture of Multi-Sequence Feature Difference for Contrast-Enhanced MRI Synthesis

Contrast-enhanced magnetic resonance imaging (CE-MRI) is crucial for accurately diagnosing and segmenting brain tumors.

Key points

  • Here, we propose a CE-MRI synthesis method from non-contrast sequences, reducing both risk and cost.
  • Unlike existing methods that rely on channel-wise concatenation to fuse multi-sequence information for synthesis, we introduce a Mixture of Feature Difference (MoFD) module.
  • Our method successfully reconstructs tumor regions and achieves segmentation performance comparable to that obtained with real CE-MRI.
  • Our ablation studies show that although adversarial learning improves perceptual quality, a regression-based variant of our method achieves higher structural fidelity.

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