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PubMed1992

The electronic information revolution and how to exploit it.

Medical information is increasingly stored in electronic format, enabling faster and more flexible access to the literature. Online, compact disc and floppy disc databases are widely available. The origins and development of these different database media are described. The strengths and weaknesses of each, and the ways in which they complement each other, are examined. Ease of access to medical information can result in data management problems; the role of bibliographic software in ensuring full exploitation of the electronic information revolution is therefore emphasized.

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PubMed1992

Exchange of Veterans Affairs medical data using national and local networks.

Remote data exchange is extremely useful to a number of medical applications. It requires an infrastructure including systems, network and software tools. With such an infrastructure, existing local applications can be extended to serve national needs. There are many approaches to providing remote data exchange. Selection of an approach for an application requires balancing of various factors, including the need for rapid interactive access to data and ad hoc queries, the adequacy of access to predefined data sets, the need for an integrated view of the data, the ability to provide adequate security protection, the amount of data required, and the time frame in which data is required. The applications described here demonstrate new ways that the VA is reaping benefits from its infrastructure and its compatible integrated hospital information systems located at its facilities. The needs that have been met are also needs of private hospitals. However, in many cases the infrastructure to allow data exchange is not present. The VA's experiences may serve to establish the benefits that can be obtained by all hospitals.

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PubMed1992

Computer and imaging technology's impact on stereotactic neurosurgery. A 1987-1991 update.

Many improvements in computer and imaging technology have occurred since the last meeting of the American Society for Stereotactic and Functional Neurosurgery in 1987. These improvements are leading to a much wider acceptance of computerization and computer-assisted surgical procedures in the stereotactic neurosurgery field. This paper surveys the current fields of computer and imaging technology and its relationship and impact on the field of stereotactic neurosurgery during the period of 1987-1991. Forecasts about future developments are also discussed.

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PubMed1992

The image database: pictures and computers.

Information technology offers important new ways of using pictures for teaching in medicine. Methods for storing and delivering high quality images for computer-based learning systems are discussed.

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PubMed1992

Searching for answers. Using computers to find the literature you need for patient care.

The medical journal literature is extensive and contains information that can help physicians care for patients. Minnesota physicians are able to tap into a variety of resources to help them locate relevant articles. Literature searches may be run by librarians in a local hospital library, a larger health sciences library, or via various professional associations. Physicians interested in conducting their own searches are able to use local systems or dial into national ones. Innovations in computers will allow easier and faster access to the medical literature in the future.

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PubMed1992

Performance appraisal of online MEDLINE access routes.

OBJECTIVE: To compare the performance and cost of 11 online MEDLINE systems with MEDLINE at Elhill. DESIGN: Comparative study. SYSTEMS: Eleven online daytime systems commercially available in North America offering the MEDLINE database. MEASURES: Number of relevant citations, number of irrelevant citations, proportion of searches producing no relevant citations and cost per relevant citation were analyzed for each system. Relevance and cost for each system were compared with direct searching of MEDLINE through NLM for librarian and clinician search strategies for 18 clinical questions. The citations retrieved by both strategies were pooled and rated for relevance on a 7-point scale. RESULTS: Numbers of relevant and irrelevant citations and cost per relevant citation were higher for clinician searches than librarian searches, reflecting the higher total number of citations retrieved by the clinician approaches. A lower proportion of clinician searches produced no relevant citations than librarian searches. CONCLUSIONS: Eleven daytime MEDLINE systems performed similarly in terms of retrieval and cost within similar searching groups. Clinicians, however, tended to capture larger overall retrievals resulting in higher numbers of relevant and irrelevant citations than librarians.

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PubMed1992

A multipurpose teaching workstation using expert systems, CD ROM and interactive laserdisc.

This demonstration shows a multipurpose workstation used in a clinical teaching application which combines currently available software suitable for clinical diagnosis and teaching. The medical software includes QMR, Scientific American Medicine, the Slice of Life and generic video laserdisc authoring software developed at the University of Ottawa. The system allows a clinical instructor either in an individual or in a small group teaching setting on a ward or in a classroom, to access high quality differential diagnosis information via QMR, which is then supplemented by the text components of Scientific American Medicine on CD ROM, with video laserdisc of the appropriate anatomy, imagery and pathology provided by one of the various laserdiscs. The generic authoring software allows the instructor or students to construct subject related tutorial or testing modules either with or without video laserdisc support. The workstation uses DESQview as the multitasking environment to control the various resources. This program allows easy transfer from one application to another and allows for marking and pasting of text material into a study document. DESQview can also be used to script a specific learning sequence. The demonstration will show the interaction required to study a specific clinical problem and how this can be made into a meaningful multimedia experience with hardcopy for study purposes.

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