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Integration of clinical information across patient records: a comparison of mechanisms used to enforce semantic coherence

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2 Author(s)
Rossi Mori, A. ; Reparto Inf. Med., CNR, Rome, Italy ; Consorti, F.

Semantic coherence of clinical information is the bottleneck for true interoperability among applications in health telematics. Healthcare records are in principle made up of statements about the patient's health and activities performed, organized within attested transactions or messages. Various mechanisms have been developed to optimally represent details of statements in a record system, creating de facto three subdivisions: (1) "containers" of clinical information, i.e., section headings, data elements in local records; segments and data fields in messages; (2) their "contents," i.e., coding systems and terminologies; and (3) "transaction context," i.e., circumstances related to document production and message exchange, typically represented in their headers. Details rely on a common semantic background and should, therefore, be seen in a continuum; nevertheless, design methodologies and tools for the three subdivisions evolved independently and assignment of details to subdivisions is not predetermined by principles, but depends on implementation issues. Recent developments within the European Committee for Standardization (CEN/TC251/WG II) and in the European Project GALEN-IN-USE provide a new insight on semantics in healthcare. In order to guide harmonization of semantic aspects in the different series of standards-in information models, messages, document markup, terminology systems-we present a comparison of the various mechanisms they use to enforce semantic coherence on clinical information.

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Information Technology in Biomedicine, IEEE Transactions on  (Volume:2 ,  Issue: 4 )