Enhancing medical AI with retrieval-augmented generation: A mini narrative review

Retrieval-augmented generation (RAG) is a powerful technique in artificial intelligence (AI) and machine learning that enhances the capabilities of large language models (LLMs) by integrating external data sources, allowing for more accurate, contextually relevant responses. In medical applications,...

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Main Authors: Omid Kohandel Gargari, Gholamreza Habibi
Format: Article
Language:English
Published: SAGE Publishing 2025-04-01
Series:Digital Health
Online Access:https://doi.org/10.1177/20552076251337177
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author Omid Kohandel Gargari
Gholamreza Habibi
author_facet Omid Kohandel Gargari
Gholamreza Habibi
author_sort Omid Kohandel Gargari
collection DOAJ
description Retrieval-augmented generation (RAG) is a powerful technique in artificial intelligence (AI) and machine learning that enhances the capabilities of large language models (LLMs) by integrating external data sources, allowing for more accurate, contextually relevant responses. In medical applications, RAG has the potential to improve diagnostic accuracy, clinical decision support, and patient care. This narrative review explores the application of RAG across various medical domains, including guideline interpretation, diagnostic assistance, clinical trial eligibility screening, clinical information retrieval, and information extraction from scientific literature. Studies highlight the benefits of RAG in providing accurate, up-to-date information, improving clinical outcomes, and streamlining processes. Notable applications include GPT-4 models enhanced with RAG to interpret hepatologic guidelines, assist in differential diagnosis, and aid in clinical trial screening. Furthermore, RAG-based systems have demonstrated superior performance over traditional methods in tasks such as patient diagnosis, clinical decision-making, and medical information extraction. Despite its advantages, challenges remain, particularly in model evaluation, cost-efficiency, and reducing AI hallucinations. This review emphasizes the potential of RAG in advancing medical AI applications and advocates for further optimization of retrieval mechanisms, embedding models, and collaboration between AI researchers and healthcare professionals to maximize RAG's impact on medical practice.
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spelling doaj-art-9ddbde19d8bf45e5b4f9e26b2f1cee182025-08-20T02:57:44ZengSAGE PublishingDigital Health2055-20762025-04-011110.1177/20552076251337177Enhancing medical AI with retrieval-augmented generation: A mini narrative reviewOmid Kohandel GargariGholamreza HabibiRetrieval-augmented generation (RAG) is a powerful technique in artificial intelligence (AI) and machine learning that enhances the capabilities of large language models (LLMs) by integrating external data sources, allowing for more accurate, contextually relevant responses. In medical applications, RAG has the potential to improve diagnostic accuracy, clinical decision support, and patient care. This narrative review explores the application of RAG across various medical domains, including guideline interpretation, diagnostic assistance, clinical trial eligibility screening, clinical information retrieval, and information extraction from scientific literature. Studies highlight the benefits of RAG in providing accurate, up-to-date information, improving clinical outcomes, and streamlining processes. Notable applications include GPT-4 models enhanced with RAG to interpret hepatologic guidelines, assist in differential diagnosis, and aid in clinical trial screening. Furthermore, RAG-based systems have demonstrated superior performance over traditional methods in tasks such as patient diagnosis, clinical decision-making, and medical information extraction. Despite its advantages, challenges remain, particularly in model evaluation, cost-efficiency, and reducing AI hallucinations. This review emphasizes the potential of RAG in advancing medical AI applications and advocates for further optimization of retrieval mechanisms, embedding models, and collaboration between AI researchers and healthcare professionals to maximize RAG's impact on medical practice.https://doi.org/10.1177/20552076251337177
spellingShingle Omid Kohandel Gargari
Gholamreza Habibi
Enhancing medical AI with retrieval-augmented generation: A mini narrative review
Digital Health
title Enhancing medical AI with retrieval-augmented generation: A mini narrative review
title_full Enhancing medical AI with retrieval-augmented generation: A mini narrative review
title_fullStr Enhancing medical AI with retrieval-augmented generation: A mini narrative review
title_full_unstemmed Enhancing medical AI with retrieval-augmented generation: A mini narrative review
title_short Enhancing medical AI with retrieval-augmented generation: A mini narrative review
title_sort enhancing medical ai with retrieval augmented generation a mini narrative review
url https://doi.org/10.1177/20552076251337177
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