大型语言模型在使用临床笔记预测术后风险方面的基本能力.
Charles Alba1,2,3, Bing Xue1,2, Joanna Abraham1,4,5
1AI for Health Institute, Washington University in St. Louis, 1 Brookings Drive, St Louis, 63130, MO, USA.
NPJ digital medicine
|February 11, 2025
概括
大型语言模型 (LLM) 从临床笔记中显著提高了术后风险的预测. 微调策略,特别是统一的基础模型,提高准确性,以获得更好的术后护理.
科学领域:
- 医疗信息学 医疗信息学
- 人工智能在医学中的应用
- 临床数据分析 临床数据分析
背景情况:
- 临床笔记包含有价值的术后患者数据.
- 大型语言模型 (LLM) 提供了利用这些数据的机会.
- 预测术后风险对于患者的治疗结果至关重要.
研究的目的:
- 评估LLMs在预测六种术后风险方面的表现.
- 将不同的LLM微调策略与传统方法进行比较.
- 评估LLM在术后护理中的潜力.
主要方法:
- 使用了84,875份手术前笔记和手术病例 (2018-2021年).
- 将预先训练的LLM与传统的词嵌入进行了比较.
- 调查了自我监督的微调和标签结合.
- 使用接收器运行特征曲线 (AUROC) 下面的面积和精度回调曲线 (AUPRC) 下面的面积来评估性能.
主要成果:
- 预先训练的LLM显著优于传统的词嵌入 (AUROC +38.3%,AUPRC +33.2%).
- 自主监督的微调带来了进一步的改进 (AUROC +3.2%,AUPRC +1.5%).
- 标签的整合提高了性能 (AUROC +1.8%,AUPRC +2%).
- 统一的基础模型实现了最高的性能 (AUROC +3.6%,AUPRC +2.6%超过自我监督).
结论:
- 从临床笔记中,LLM在预测术后风险方面表现出强大的能力.
- 先进的微调策略,特别是统一的基础模型,优化了LLM的性能.
- 法律学整合具有改善外科手术期间护理和患者安全的巨大潜力.
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