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Revista Cubana de Informática Médica

On-line version ISSN 1684-1859


ARANDA ACUNA, Evelyn María; VILLALBA, Cynthia  and  VAZQUEZ NOGUERA, José Luis. Medical Terminology Server for the Hospital de Clínicas de Paraguay using Apache Lucene. RCIM [online]. 2018, vol.10, n.2, e09. ISSN 1684-1859.


In the Hospital Clínicas of Paraguay, the current process of searching for terminologies for medical coding in health standards takes a long time since it is done manually. It is proposed to optimize the current search process through the implementation of a medical terminology server using web services and a text search engine library.


Three layer client-server architecture is proposed (also known as multilevel architecture), organized as follows: presentation layer, business layer and data layer. The use of this pattern was due to its contribution to the independence between the layers and the clear definition of them in terms of the objective pursued. The terminology server is represented in the business layer. It is composed of a set of REST web services and a text search engine library, called Apache Lucene.

Experiments and Results:

Two experiments were carried out according to the objective mentioned above. The implemented terminology server responds up to 19 times faster than the current search process and proved to be quite competitive against Metamorphosys. While both tools have a similar average response time, the terminology server is up to 5 times faster than Metamorphosys in their outliers.


The terminology server implemented reduces the search time of the current process being faster than the current search process. Finally, before the comparison of the server implemented against the Metamorphosys search engine, the implemented server is competitive since they have similar response times.

Keywords : terminology server; Metamorphosys medical coding.

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