Extracting Medical Image-Related Entities from Spanish Electronic Health Records Using NER Methods

Alexander Platas, Marcos Merino, Elena Zotova, Montse Cuadros, Karen López-Linares, Mikel Pérez de Mendiola, María Gálvez, Cristina Barba, Antón Asla


Abstract
This paper presents a novel corpus in Spanish tailored for the extraction of medical image-related entities from radiological reports using Named Entity Recognition (NER) methods. The dataset was created by aggregating and refining multiple existing corpora, focusing on entities that can be visually interpreted in associated medical images. This resource aims to bridge the gap between natural language processing and computer vision in the biomedical domain. The study evaluates various NER methods, including encoder-only, encoder-decoder, and decoder-only architectures. It explores fine-tuning, zero-shot, and few-shot In-Context Learning (ICL) strategies to determine the most effective approach for entity extraction. The resulting dataset is publicly available.
Anthology ID:
2026.lrec-1.829
Volume:
Proceedings of the Fifteenth Language Resources and Evaluation Conference
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Stelios Piperidis, Núria Bel, Henk van den Heuvel, Nancy Ide, Simon Krek, Antonio Toral
Venue:
LREC
SIG:
Publisher:
ELRA Language Resource Association
Note:
Pages:
10569–10578
Language:
External URL:
https://lrec.elra.info/lrec2026-main-829
DOI:
10.63317/4t6agzu5ygqr
Bibkey:
Cite (ACL):
Alexander Platas, Marcos Merino, Elena Zotova, Montse Cuadros, Karen López-Linares, Mikel Pérez de Mendiola, María Gálvez, Cristina Barba, and Antón Asla. 2026. Extracting Medical Image-Related Entities from Spanish Electronic Health Records Using NER Methods. In Proceedings of the Fifteenth Language Resources and Evaluation Conference, pages 10569–10578, Palma de Mallorca, Spain. ELRA Language Resource Association.
Cite (Informal):
Extracting Medical Image-Related Entities from Spanish Electronic Health Records Using NER Methods (Platas et al., LREC 2026)
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