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arXiv 2404.06503cs.CL
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比较两种临床笔记生成模型设计;LLM是有用的一致性评估器吗?

Comparing Two Model Designs for Clinical Note Generation; Is an LLM a Useful Evaluator of Consistency?

Solventum(索尔文腾公司);Health Information Systems(健康信息系统)

Nathan Brake, Thomas Schaaf

AI总结:

本文比较独立与联合生成SOAP笔记各部分的PEGASUS-X模型,并验证Llama2可近似人工评估一致性,发现条件化生成可提升临床笔记一致性。

摘要:

在与患者互动后,医生负责提交临床文档,这些文档通常组织为SOAP笔记。临床笔记并非简单的对话总结,而是需要使用恰当的医学术语。随后,相关信息可以按照SOAP笔记的结构被提取和组织。本文分析了基于对话录音生成SOAP笔记不同部分的两种方法,并专门从笔记一致性方面对其进行考察。第一种方法独立生成各个部分,而第二种方法将所有部分一起生成。在本研究中,我们使用PEGASUS-X Transformer模型,并观察到两种方法产生相近的ROUGE值(差异小于1%),且在Factuality指标方面没有差异。我们进行了人工评估以衡量一致性的各个方面,并证明像Llama2这样的LLM可用于执行相同任务,其一致性与人工标注者大致相同。在Llama2分析与人工评审者之间,我们观察到年龄、性别和受伤身体部位一致性的Cohen Kappa评分者间信度分别为0.79、1.00和0.32。由此,我们证明了利用LLM衡量那些可由人类识别、但当前未被自动指标捕获的质量指标的实用性。这使得评估能够扩展到更大的数据集,并且我们发现,通过以所有先前生成部分的输出为条件来生成每个新部分,临床笔记一致性得到了改善。

英文摘要:

Following an interaction with a patient, physicians are responsible for the submission of clinical documentation, often organized as a SOAP note. A clinical note is not simply a summary of the conversation but requires the use of appropriate medical terminology. The relevant information can then be extracted and organized according to the structure of the SOAP note. In this paper we analyze two different approaches to generate the different sections of a SOAP note based on the audio recording of the conversation, and specifically examine them in terms of note consistency. The first approach generates the sections independently, while the second method generates them all together. In this work we make use of PEGASUS-X Transformer models and observe that both methods lead to similar ROUGE values (less than 1% difference) and have no difference in terms of the Factuality metric. We perform a human evaluation to measure aspects of consistency and demonstrate that LLMs like Llama2 can be used to perform the same tasks with roughly the same agreement as the human annotators. Between the Llama2 analysis and the human reviewers we observe a Cohen Kappa inter-rater reliability of 0.79, 1.00, and 0.32 for consistency of age, gender, and body part injury, respectively. With this we demonstrate the usefulness of leveraging an LLM to measure quality indicators that can be identified by humans but are not currently captured by automatic metrics. This allows scaling evaluation to larger data sets, and we find that clinical note consistency improves by generating each new section conditioned on the output of all previously generated sections.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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