CoMT: Chain-of-Medical-Thought Reduces Hallucination in Medical Report Generation

Fuente: arXiv
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Autores principales: Jiang, Yue, Chen, Jiawei, Yang, Dingkang, Li, Mingcheng, Wang, Shunli, Wu, Tong, Li, Ke, Zhang, Lihua
Formato: Preprint
Publicado: 2024
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author Jiang, Yue
Chen, Jiawei
Yang, Dingkang
Li, Mingcheng
Wang, Shunli
Wu, Tong
Li, Ke
Zhang, Lihua
author_facet Jiang, Yue
Chen, Jiawei
Yang, Dingkang
Li, Mingcheng
Wang, Shunli
Wu, Tong
Li, Ke
Zhang, Lihua
contents Automatic medical report generation (MRG), which possesses significant research value as it can aid radiologists in clinical diagnosis and report composition, has garnered increasing attention. Despite recent progress, generating accurate reports remains arduous due to the requirement for precise clinical comprehension and disease diagnosis inference. Furthermore, owing to the limited accessibility of medical data and the imbalanced distribution of diseases, the underrepresentation of rare diseases in training data makes large-scale medical visual language models (LVLMs) prone to hallucinations, such as omissions or fabrications, severely undermining diagnostic performance and further intensifying the challenges for MRG in practice. In this study, to effectively mitigate hallucinations in medical report generation, we propose a chain-of-medical-thought approach (CoMT), which intends to imitate the cognitive process of human doctors by decomposing diagnostic procedures. The radiological features with different importance are structured into fine-grained medical thought chains to enhance the inferential ability during diagnosis, thereby alleviating hallucination problems and enhancing the diagnostic accuracy of MRG. The code and dataset have been released at https://github.com/FRENKIE-CHIANG/CoMT.
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institution arXiv
publishDate 2024
record_format arxiv
spellingShingle CoMT: Chain-of-Medical-Thought Reduces Hallucination in Medical Report Generation
Jiang, Yue
Chen, Jiawei
Yang, Dingkang
Li, Mingcheng
Wang, Shunli
Wu, Tong
Li, Ke
Zhang, Lihua
Computer Vision and Pattern Recognition
Automatic medical report generation (MRG), which possesses significant research value as it can aid radiologists in clinical diagnosis and report composition, has garnered increasing attention. Despite recent progress, generating accurate reports remains arduous due to the requirement for precise clinical comprehension and disease diagnosis inference. Furthermore, owing to the limited accessibility of medical data and the imbalanced distribution of diseases, the underrepresentation of rare diseases in training data makes large-scale medical visual language models (LVLMs) prone to hallucinations, such as omissions or fabrications, severely undermining diagnostic performance and further intensifying the challenges for MRG in practice. In this study, to effectively mitigate hallucinations in medical report generation, we propose a chain-of-medical-thought approach (CoMT), which intends to imitate the cognitive process of human doctors by decomposing diagnostic procedures. The radiological features with different importance are structured into fine-grained medical thought chains to enhance the inferential ability during diagnosis, thereby alleviating hallucination problems and enhancing the diagnostic accuracy of MRG. The code and dataset have been released at https://github.com/FRENKIE-CHIANG/CoMT.
title CoMT: Chain-of-Medical-Thought Reduces Hallucination in Medical Report Generation
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2406.11451