ResearchResearch paperComputer Vision · Large Language Models1 source · Oct 19, 2026

Progressive multi-scale tumor-state memory for incomplete multimodal brain tumor segmentation

We propose a progressive multi-scale tumor-state memory network (PMTM) for segmentation from any non-empty subset of T1ce, T1, FLAIR, and T2.

Key points

  • Brain tumor segmentation uses complementary magnetic resonance imaging (MRI) sequences, but some sequences may be unavailable in practice.
  • Their absence changes the information available for segmenting different tumor regions.
  • Fusion methods can support different input subsets.
  • We evaluate PMTM on BraTS2018, BraTS2020, and BraTS2023 GLI across all 15 non-empty modality subsets.

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