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Medical Information Extraction in European Portuguese

Medical Information Extraction in European Portuguese
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Author(s): Liliana Ferreira (University of Aveiro, Portugal), António Teixeira (University of Aveiro, Portugal) and João Paulo Silva Cunha (University of Aveiro, Portugal)
Copyright: 2013
Pages: 20
Source title: Handbook of Research on ICTs for Human-Centered Healthcare and Social Care Services
Source Author(s)/Editor(s): Maria Manuela Cruz-Cunha (Polytechnic Institute of Cavado and Ave, Portugal), Isabel Maria Miranda (Municipality of Guimarães, Portugal) and Patricia Gonçalves (School of Technology at the Polytechnic Institute of Cavado and Ave, Portugal)
DOI: 10.4018/978-1-4666-3986-7.ch032

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Abstract

The electronic storage of medical patient data is becoming a daily experience in most of the practices and hospitals worldwide. However, much of the available data is in free text form, a convenient way of expressing concepts and events but especially challenging if one wants to perform automatic searches, summarization, or statistical analyses. Information Extraction can relieve some of these problems by offering a semantically informed interpretation and abstraction of the texts. MedInX, the Medical Information eXtraction system presented in this chapter is designed to process textual clinical discharge records in order to perform automatic and accurate mapping of free text reports onto a structured representation. MedInX components are based on Natural Language Processing principles and provide several mechanisms to read, process, and utilize external resources, such as terminologies and ontologies. MedInX current practical applications include automatic code assignment and an audit system capable of systematically analyze the content and completeness of the clinical reports. Recent evaluation efforts on a set of authentic patient discharge letters indicate that the system performs with 95% precision and recall.

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