Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria.
Int J Med Inform. 2010 Aug;79(8):585-97. doi: 10.1016/j.ijmedinf.2010.04.007.
The ISO/EN 13606 Electronic Health Record architecture standard permits semantically interoperable exchange of Electronic Health Record data by using archetypes to define the structure and semantics of Electronic Health Record contents. Practical implementations of the ISO/EN 13606 standard have been scarcely reported on, and none of the publications describes in detail an efficient technique of archetype-compliant data extraction from an Electronic Health Record system. We address this research issue in the present report, and focus on a specific class of largely research-oriented Electronic Health Record systems which are internally based on the Entity-Attribute-Value Model.
We propose an approach for extracting data described by archetypes from an Entity-Attribute-Value based Electronic Health Record system in an ISO/EN 13606-conformant manner. The approach is based on mapping from the structure of exported source documents to the archetype. It is implemented via standard XML technologies.
We tested our approach on an Electronic Health Record system employed for clinical research at the Medical University of Vienna. Using test data defined by three different archetypes, source documents were successfully extracted as archetype-conformant ISO/EN 13606 Electronic Health Record extracts.
Electronic Health Record data may be effectively extracted from Entity-Attribute-Value based Electronic Health Record systems using the suggested approach. As a prerequisite for applying our approach, the internal data model of the Electronic Health Record system and the archetype must overlap in a way that a semantic mapping between them is possible. The system must further provide an XML interface which permits the export of the source documents in conventional format. The export must include data and metadata that are mandatorily postulated by the archetype and the ISO/EN 13606 Reference Model.
ISO/EN 13606 电子健康记录架构标准允许通过使用原型来定义电子健康记录内容的结构和语义，实现语义上可互操作的电子健康记录数据交换。ISO/EN 13606 标准的实际实现很少有报道，并且没有一篇出版物详细描述了一种从电子健康记录系统中提取符合原型的数据的有效技术。我们在本报告中解决了这个研究问题，并专注于一种特定类型的主要面向研究的电子健康记录系统，这些系统内部基于实体-属性-值模型。
我们提出了一种从基于实体-属性-值的电子健康记录系统中以 ISO/EN 13606 一致的方式提取原型描述的数据的方法。该方法基于从导出源文档的结构到原型的映射。它是通过标准 XML 技术实现的。
我们在维也纳医科大学用于临床研究的电子健康记录系统上测试了我们的方法。使用由三个不同原型定义的测试数据，成功地提取了符合原型的 ISO/EN 13606 电子健康记录提取的源文档。
可以使用建议的方法从基于实体-属性-值的电子健康记录系统中有效地提取电子健康记录数据。作为应用我们的方法的前提条件，电子健康记录系统的内部数据模型和原型必须以一种可以进行语义映射的方式重叠。该系统还必须提供一个 XML 接口，允许以常规格式导出源文档。导出必须包括原型和 ISO/EN 13606 参考模型强制规定的必需数据和元数据。
