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Biomedical subjects

W Hersh

Publications and source records attributed to W Hersh.

5 recordsLinked to original sources

Use of a multi-application computer workstation in a clinical setting.

The goal of this study was to assess the usage frequency, user satisfaction, and quality of literature searchers for a multi-application computer workstation in a university-based general medicine clinic. A computer with medical literature searching, textbook searching, and a decision-support program was deployed in the workroom of the clinic and made available for routine use. Data were collected for ten months. More than three quarters of the study participants used the computer, with use increasing by level of medical training. Despite physicians' known preferences for nonjournal sources of information, literature searching was the application used most frequently, followed by textbooks and decision support. The literature searches were replicated by experienced clinician and librarian searchers using first full MEDLINE and then text-word-only searching, to compare the quantities of relevant references retrieved. Novice searchers retrieved a larger number of relevant references than did the experienced searchers, but they also retrieved more nonrelevant references. For both groups of experienced searchers, the full MEDLINE feature set conferred little benefit over searching with only text words. These searching results call into question the value of traditional searching methods for both novice and experienced physicians.

Attitude to Computers

Evaluation of SAPHIRE: an automated approach to indexing and retrieving medical literature.

An analysis of SAPHIRE, an experimental information retrieval system featuring automated indexing and natural language retrieval, was performed on MEDLINE references using data previously generated for a MEDLINE evaluation. Compared with searches performed by novice and expert physicians using MEDLINE, SAPHIRE achieved comparable recall and precision. While its combined recall and precision performance did not equal the level of librarians, SAPHIRE did achieve a significantly higher level of absolute recall. SAPHIRE has other potential advantages over existing MEDLINE systems. Its natural language interface does not require knowledge of MeSH, and it provides relevance ranking of retrieved references.

Abstracting and Indexing

Knowledge management as a decision support method: a diagnostic workup strategy application.

We have explored the potential of a computer-based approach called "knowledge management" to aid in clinical problem solving and education. The major features of the approach are its ability to support flexible and immediate access by a user to relevant knowledge and annotation and organization of the knowledge for personal use and subsequent retrieval. We illustrate this approach with its application to diagnostic workup strategy problems. In this application, knowledge may be in the form of static narrative text, diagrams, pictures, graphs, tables, flow charts, or bibliographic citations. Other more dynamic forms of knowledge may be the result of simulations, "what if" analyses or modeling, quantitative mathematical or statistical calculation, or heuristic inference. User assessment has demonstrated the system's ease of use and user perception of its desirability, but underscores the need for a "critical mass" of knowledge before such an approach will be widely utilized.

Decision Support Techniques

Another man's poison.

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Education, Medical, Continuing