Author

P. Lally

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Preprint Aug 2026

PerFact: Perception-Derived Fact Prompting for 3D Brain MRI Report Generation

In a controlled study that fixes the backbone, data split, target reports, and adaptation while varying only the injected grounding, perception-derived facts outperform retrieved prior reports, retrieval becomes redundant once facts are present, and end-to-end predicted facts remain effective without any ground-truth a...

Jian-Yu Sun, Zhen-Xuan Zhang, Guang Yang et al. · 0 citations