Med-StepBench is the first large-scale step-wise hallucination benchmark for 3D oncological PET/CT that decomposes clinical reasoning into four stages and reveals systematic VLM failures hidden by aggregate metrics.
Cares: A comprehensive benchmark of trustworthiness in medical vision language models.Advances in Neural Information Processing Sys- tems, 37:140334–140365
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Med-StepBench: A Hierarchical Reasoning Framework for Evaluating Hallucinations in Medical Vision-Language Models
Med-StepBench is the first large-scale step-wise hallucination benchmark for 3D oncological PET/CT that decomposes clinical reasoning into four stages and reveals systematic VLM failures hidden by aggregate metrics.