title: SNOMED CT module-driven clinical archetype management.
abstract: OBJECTIVE
  To explore semantic search to improve management and user navigation in clinical archetype repositories.
  
  
  METHODS
  In order to support semantic searches across archetypes, an automated method based on SNOMED CT modularization is implemented to transform clinical archetypes into SNOMED CT extracts. Concurrently, query terms are converted into SNOMED CT concepts using the search engine Lucene. Retrieval is then carried out by matching query concepts with the corresponding SNOMED CT segments.
  
  
  RESULTS
  A test collection of the 16 clinical archetypes, including over 250 terms, and a subset of 55 clinical terms from two medical dictionaries, MediLexicon and MedlinePlus, were used to test our method. The keyword-based service supported by the OpenEHR repository offered us a benchmark to evaluate the enhancement of performance. In total, our approach reached 97.4% precision and 69.1% recall, providing a substantial improvement of recall (more than 70%) compared to the benchmark.
  
  
  CONCLUSIONS
  Exploiting medical domain knowledge from ontologies such as SNOMED CT may overcome some limitations of the keyword-based systems and thus improve the search experience of repository users. An automated approach based on ontology segmentation is an efficient and feasible way for supporting modeling, management and user navigation in clinical archetype repositories.
authors: Department of Electronics and Computer Science, Campus Vida, University of Santiago de Compostela, 15782 Santiago de Compostela, La Coruña, Spain. joseluis.allones@usc.es
authors: J L
authors: JL
authors: Allones
authors: M
authors: M
authors: Taboada
authors: D
authors: D
authors: Martinez
authors: R
authors: R
authors: Lozano
authors: M J
authors: MJ
authors: Sobrido
mesh_terms: D019985:Benchmarking; D016247:Information Storage and Retrieval; D015203:Reproducibility of Results; D039061:Systematized Nomenclature of Medicine