| An Evaluation of the UMLS in Representing Corpus Derived Clinical Concepts. | |
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MedLine Citation:
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PMID: 22195097 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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WE PERFORMED AN EVALUATION OF THE UNIFIED MEDICAL LANGUAGE SYSTEM (UMLS) IN REPRESENTING CONCEPTS DERIVED FROM MEDICAL NARRATIVE DOCUMENTS FROM THREE DOMAINS: chest x-ray reports, discharge summaries and admission notes. We detected concepts in these documents by identifying noun phrases (NPs) and N-grams, including unigrams (single words), bigrams (word pairs) and trigrams (word triples). After removing NPs and N-grams that did not represent discrete clinical concepts, we processed the remaining with the UMLS MetaMap program. We manually reviewed the results of MetaMap processing to determine whether MetaMap found full, partial or no representation of the concept. For full representations, we determined whether post-coordination was required. Our results showed that a large portion of concepts found in clinical narrative documents are either unrepresented or poorly represented in the current version of the UMLS Metathesaurus and that post-coordination was often required in order to fully represent a concept. |
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Authors:
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Jeff Friedlin; Marc Overhage |
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Publication Detail:
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Type: Journal Article Date: 2011-10-22 |
Journal Detail:
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Title: AMIA ... Annual Symposium proceedings / AMIA Symposium. AMIA Symposium Volume: 2011 ISSN: 1942-597X ISO Abbreviation: AMIA Annu Symp Proc Publication Date: 2011 |
Date Detail:
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Created Date: 2011-12-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101209213 Medline TA: AMIA Annu Symp Proc Country: United States |
Other Details:
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Languages: eng Pagination: 435-44 Citation Subset: IM |
Affiliation:
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Regenstrief Institute, Inc. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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