Researchvision languagellmradiologyevidence alignment
LLM Guides Diagnostic Evidence Alignment For Imaging
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On Feb 7, 2026, a preprint by Huimin Yan et al. proposes LGDEA, an LLM-Guided Diagnostic Evidence Alignment method that shifts vision–language pretraining from global/local alignment to evidence-level alignment. It uses large language models to extract diagnostic evidence from radiology reports, builds a shared evidence space, and leverages unpaired images and reports. Experiments show consistent improvements on phrase grounding, image–text retrieval, and zero-shot classification.
