MedSlice: modelos de lenguaje grandes ajustados para la segmentación segura de notas clínicas
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Updated: Jun 20, 2026
A Comprehensive Protocol for Manual Segmentation of the Medial Temporal Lobe Structures
Published on: July 2, 2014
Joshua Davis1,2, Thomas Sounack1, Kate Sciacca1,3
1Department of Supportive Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, United States.
Objectives:
Extracting sections from clinical notes is crucial for downstream analysis but is challenging due to variability in formatting and labor-intensive nature of manual sectioning. This study develops a pipeline for automated note sectioning using open-source large language models (LLMs), focusing on three sections: History of Present Illness, Interval History, and Assessment and Plan.
Materials And Methods:
We fine-tuned three open-source LLMs to extract sections using a curated dataset of 487 progress notes, comparing results relative to proprietary models (GPT-4o, GPT-4o mini). Internal and external validity were assessed via precision, recall, and F1 score.
Results:
Fine-tuned Llama 3.1 8B (F1 = 0.92) outperformed GPT-4o. On the external validity test set, performance remained high (F1 = 0.85).
Discussion:
While proprietary LLMs have shown promise, privacy concerns limit their utility in medicine; fine-tuned, open-source LLMs offer advantages in cost, performance, and accessibility.
Conclusion:
Fine-tuned, open-source LLMs can surpass proprietary models in clinical note sectioning.
