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A study of the concept of urinary tract infections in different domains of medicine using the MEDLINE® database
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
Department of Immunology, Microbiology, pathology and Infectious Diseases, Karolinska Institutet, Stockholm, Sweden.
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
Linköping University, Department of Molecular and Clinical Medicine, Clinical Microbiology. Linköping University, Faculty of Health Sciences.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

In the construction of decision-support systems, differences between expert and end-user domains may pose a problem. As a way of studying differences between medical domains regarding management of urinary tract infections, we investigated the MEDLINE® for differences in indexing patterns. Further, our intention was to assess the MEDLINE® database as a source for studying medical domains. We examined the use of main headings, subheadings and the level of main headings in six medical domains that manage urinary tract infections. Many intuitive but also some counterintuitive results were found. We conclude that it is difficult to use the MEDLINE® database for studying medical domains mainJy due to unclear semantics both in the headings and the indexing process, which results in variability in indexing. This variability probably hides significant results. We also conclude that the differences found indicate that in addition to differences between domains, there are also large variations within domains.

National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-88955OAI: oai:DiVA.org:liu-88955DiVA: diva2:606470
Available from: 2013-02-19 Created: 2013-02-19 Last updated: 2013-02-19
In thesis
1. Aspects of the use of medical decision-support systems: the role of context in decision support
Open this publication in new window or tab >>Aspects of the use of medical decision-support systems: the role of context in decision support
2001 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

There is a great need today for distribution of medical information. The amount of information is growing quickly, and information that could potentially influence clinical practice fails to reach health care professionals. The supply of information to health care has from the start been the main goal of medical informatics. However, with very few exceptions, the systems developed to support the formalization and distribution of medical knowledge, i.e. decision-support or expert systems, have not attained clinical use. Thus, since there is an unsatisfied need for information and the methods developed so far have been successful to only a limited extent, it is important to gain insight into both how decision-support systems are used and which of their properties may influence the usability.

This thesis describes aspects of the use of medical decision-support systems by looking at two prototype implementations of such systems. The prototypes concerned bacterial endocarditis and urinary tract infections respectively. The first prototype system was evaluated and a theory of the use of the system was developed, thereby leading to further theorization and the development of a new system design. The goal of the system designs was to facilitate the interpretation and assessment of generated advice. This kind of support was realized by applying an expertext system model, a model that supports triangulation of decision-support methods and information sources. To organize the information in an expertext environment, a common terminological domain model was used in the second system design. In the theorization, a special focus was on contextual aspects of system use. Differences between knowledge provider and end-user contexts concerning the use of decision-support systems were analyzed. The importance of support for multi-perspective interpretation of system output such as is present in our system designs was confirmed.

Place, publisher, year, edition, pages
Linköping: UNIT, 2001. 45 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 662
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-29007 (URN)14240 (Local ID)91-7219-896-6 (ISBN)14240 (Archive number)14240 (OAI)
Public defence
2001-01-09, Sal 1, Farmakologen, Plan 8, Universitetssjukhuset, Linköping, 09:00 (Swedish)
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2013-02-19

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Karlsson, DanielÅhlfeldt, HansForsum, Urban

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