Querying openEHR-based Electronic Health Record in the IHE XDS enviroment

Borut Fabjan (2016) Querying openEHR-based Electronic Health Record in the IHE XDS enviroment. MSc thesis.

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Abstract

This thesis presents the challenges related to adoption of electronic health record systems and use of standards to achieve functional and semantic interoperability. It focuses on the IHE XDS.b integration profile that enables interoperability of health information systems at the level of documentation handling. Semantic interoperability is presented from the aspect of structured data in exchanged documents establishing an openEHR based electronic health record system. Special attention is given to EHR search capabilities; IHE XDS.b search capabilities are limited to document metadata where content-based search is not supported. The key contribution of this work is a method for querying openEHR based Electronic Health Record in the IHE XDS environment. The conventional openEHR EHR System is extended to act as an IHE XDS Document Repository. Support for content-based queries is implemented through on-demand documents whose content is assembled using an AQL at the time of processing the retrieve request. The proposed method combines functional interoperability provided by the IHE integration profile XDS.b for the exchange of documents with semantic interoperability of openEHR based EHR system. The feasibility of the proposed method is presented on the case of a nation wide EHR system, eZdravje.

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