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An integrated Expression Repository EHR system
Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0001-6468-2432
Region Västra Götaland.
2012 (Engelska)Konferensbidrag, Muntlig presentation med publicerat abstract (Övrigt vetenskapligt)
Abstract [en]

Introduction: The aim of this work is to develop and test a system for storing and querying pre- and post-coordinated SNOMED CT expressions in an Electronic Health Record (EHR) system. SNOMED CT is here used as a reference terminology and to allow abstraction of EHR data for transfer to quality databases.

Background: Enumerating all combinations of SNOMED CT concepts is not possible due to combinatorial explosion. E.g. pain may be qualified by severity (7 severities), pain character (152), body site (25888 sites), course (31) etc. giving a total of some 800 million possible, although not always sensible, different ways to express pain.

For SNOMED CT to be useful, terminology services need to be integrated with the other parts of the information infrastructure, e.g. EHRs. As the boundary between terminology and information model representation may vary among use cases, care should be taken in implementing such integrations.

Results: A system is developed to support the management of post-coordinated SNOMED CT expressions. This expression repository allows subsumption testing of pre- and post-coordinated expressions using a full view, i.e. historical views are possible. A transitive closure of the Is a-relation is updated continuously with new post-coordinated expressions stored in the repository. The repository is also integrated with an openEHR-based EHR system including archetype querying possibilities. The integrated system allows querying of terminology-bound archetype instances using pre- and post-coordinated SNOMED CT expressions.

Ort, förlag, år, upplaga, sidor
Copenhagen, 2012.
Nyckelord [en]
SNOMED CT, EHR, Electronic Health Record
Nationell ämneskategori
Datorsystem
Identifikatorer
URN: urn:nbn:se:liu:diva-120635OAI: oai:DiVA.org:liu-120635DiVA, id: diva2:847375
Konferens
SNOMED CT Implementation Showcase 2014 25th & 26st October 2012, City Conference Centre, Stockholm, Sweden
Tillgänglig från: 2015-08-20 Skapad: 2015-08-20 Senast uppdaterad: 2015-09-08

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Karlsson, DanielNyström, Mikael

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