arXiv:2501.18435cs.CL2025-01被引 4

GENIE用小模型一键提取病历文本信息,高效准确且易部署。

GENIE: Generative Note Information Extraction model for structuring EHR data

  • 基于微调小规模大模型,单次处理整段病历
  • 同时提取实体、状态、位置、数值等多类信息,准确率超传统工具
  • 开源模型与数据,适合医疗数据结构化研究者使用

电子健康记录(EHR)蕴含丰富纵向数据,但临床文本的非结构化特性限制了其应用。传统方法如规则系统和多阶段流水线配置繁琐,难以适应不同医疗机构的文本。现有系统对术语属性提取不全面。尽管大语言模型(LLM)如GPT-4表现优异,但速度慢、成本高,难以大规模应用。为此,我们提出GENIE——一种生成式病历信息抽取系统,利用微调的小规模LLM,单次处理完整段落,高效提取实体、断言状态、位置、修饰语、数值及目的等信息。该统一端到端方法简化流程,减少错误,无需大量人工干预。通过稳健的数据预处理和模型微调,GENIE在多项信息抽取任务中表现优于cTAKES、MetaMap等传统工具,并可扩展支持更多属性提取。模型已开源,旨在推动医疗数据结构化领域的协作与进步。

原文摘要 · Abstract (English)

Electronic Health Records (EHRs) hold immense potential for advancing healthcare, offering rich, longitudinal data that combines structured information with valuable insights from unstructured clinical notes. However, the unstructured nature of clinical text poses significant challenges for secondary applications. Traditional methods for structuring EHR free-text data, such as rule-based systems and multi-stage pipelines, are often limited by their time-consuming configurations and inability to adapt across clinical notes from diverse healthcare settings. Few systems provide a comprehensive attribute extraction for terminologies. While giant large language models (LLMs) like GPT-4 and LLaMA 405B excel at structuring tasks, they are slow, costly, and impractical for large-scale use. To overcome these limitations, we introduce GENIE, a Generative Note Information Extraction system that leverages LLMs to streamline the structuring of unstructured clinical text into usable data with standardized format. GENIE processes entire paragraphs in a single pass, extracting entities, assertion statuses, locations, modifiers, values, and purposes with high accuracy. Its unified, end-to-end approach simplifies workflows, reduces errors, and eliminates the need for extensive manual intervention. Using a robust data preparation pipeline and fine-tuned small scale LLMs, GENIE achieves competitive performance across multiple information extraction tasks, outperforming traditional tools like cTAKES and MetaMap and can handle extra attributes to be extracted. GENIE strongly enhances real-world applicability and scalability in healthcare systems. By open-sourcing the model and test data, we aim to encourage collaboration and drive further advancements in EHR structurization.

信息抽取医疗AI大模型应用

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