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Finding qualitative research: an evaluation of search strategies.

BACKGROUND: Qualitative research makes an important contribution to our understanding of health and healthcare. However, qualitative evidence can be difficult to search for and identify, and the effectiveness of different types of search strategies is unknown. METHODS: Three search strategies for qualitative research in the example area of support for breast-feeding were evaluated using six electronic bibliographic databases. The strategies were based on using thesaurus terms, free-text terms and broad-based terms. These strategies were combined with recognised search terms for support for breast-feeding previously used in a Cochrane review. For each strategy, we evaluated the recall (potentially relevant records found) and precision (actually relevant records found). RESULTS: A total yield of 7420 potentially relevant records was retrieved by the three strategies combined. Of these, 262 were judged relevant. Using one strategy alone would miss relevant records. The broad-based strategy had the highest recall and the thesaurus strategy the highest precision. Precision was generally poor: 96% of records initially identified as potentially relevant were deemed irrelevant. Searching for qualitative research involves trade-offs between recall and precision. CONCLUSIONS: These findings confirm that strategies that attempt to maximise the number of potentially relevant records found are likely to result in a large number of false positives. The findings also suggest that a range of search terms is required to optimise searching for qualitative evidence. This underlines the problems of current methods for indexing qualitative research in bibliographic databases and indicates where improvements need to be made.

Breast Feeding↗

Quality assessment and cataloguing of telemedicine applications.

We created a Web catalogue of approved telemedicine systems that authoritative Italian research bodies had made available for more general use. The evaluation process was divided into two stages: (1) classification of the telemedicine systems and rough preliminary evaluation; (2) assessment of the telemedicine products and services. The scoring method was applied to four well-known telemedicine systems that had been tested in health-care settings: an echocardiology teleconsulting and analysis system; a ward nursing management system; a virtual cooperative system for the management of oncology patients and a telepathology system based on remotely controlled microscopy. After technical revision during the standardization/qualification process, the applications were transferred successfully to eight new health-care facilities. The methodology achieved the main goal of providing effective tools, such as a set of quality control procedures for telemedicine and telehealth projects and a Web catalogue of telemedicine applications with a standardized level of quality, available to all interested parties.

Cataloging↗

Building an anonymized catalogued radiology museum in PACS: a feasibility study.

The aim of this study was to test the feasibility of a software application that would allow the anonymization and cataloguing of whole DICOM datasets in order to build searchable radiology museums within PACS. The application was developed on a dedicated networked PC, using C# and HL7 coding. Whole DICOM datasets were pushed from PACS to a networked PC on which the application, Museum Builder, was developed. Museum Builder works by replacing the patient specific data (the forename, surname and hospital number) within each header of each DICOM file with terms from anatomical and surgical sieve menus. The date of birth is anonymized to 1 January of the same year. Whole DICOM datasets comprising hundreds of images can be anonymized and catalogued in a single episode. Museum Builder primes PACS with an HL7 script to receive a "new" patient. DICOM datasets are then pushed back to PACS where they are added to the database as "new" cases. The museum cases can then be searched for, on PACS, by any combination of terms that correspond to appropriate anatomical units, surgical sieve headings or radiological specialty. New radiology reports containing clinical histories, radiological descriptions, differential diagnoses and discussion can be added through the report window. Our institution has developed and used this tool to generate a PACS based radiology museum containing not only full DICOM datasets, but also relevant histological and clinical photographs. In conclusion, this technique offers a mechanism for generating anonymized catalogued radiology museums in PACS. Museum Builder represents a working prototype that demonstrates some of the archiving functions that are expected by teaching institutions from PACS.

Cataloging↗

ABLEDATA: a database of products for the disabled.

ABLEDATA (ABLE), a database funded by the National Institute on Disability and Rehabilitation Research (NIDRR) of the U.S. Department of Education and produced by the Adaptive Equipment Center of Newington Children's Hospital, Newington, Connecticut, provides information on more than 17,000 rehabilitation products from over 2,000 manufacturers in the U.S. and Canada. ABLE, which is available through BRS Search Service, BRS Colleague, and BRS After Dark, is a useful resource for rehabilitation professionals and others who wish to locate appropriate assistive devices for all categories of disabled persons.

Canada↗

LabVelocity: online tools for life science products, protocols, technical information, MEDLINE searches, and laboratory calculations.

As the pace of life science discovery increases, so do the demands on researchers. To remain competitive in the life science industry, researchers must use every tool at their disposal to keep up with new products, protocols, news, and literature in their field. While there are now myriad Web sites that assist researchers with this problem, many suffer from confusing user interfaces, poorly designed search engines, and a narrow information focus. Here, we present LabVelocity, a user-friendly Web site that provides a free multidisciplinary information-gathering service for the life science research community. Using LabVelocity, a researcher can quickly find the products, protocols, technical references, news, MEDLINE abstracts, and interactive software tools necessary for an experiment. This aggregation of information can streamline experimental planning and is especially useful when researchers want to set up a new laboratory or to venture outside their field of expertise.

Algorithms↗

The Compendium of Pharmaceuticals and Specialties: a critical analysis.

The Compendium of Pharmaceuticals and Specialties (CPS) is the most widely used source of drug information in Canada, and is heavily financed by the pharmaceutical industry. A close examination of its contents comparing a computer-drawn, randomized sample of monographs from its "White Pages" to standard pharmacological reference works demonstrates certain of its characteristics: it uncritically includes many inadequate preparations; it overstates the benefits and understates the adverse qualities of many preparations; and it contains little or no information on relative indications, efficacy, or price. These characteristics serve to promote the marketing goals of the drug manufacturers and severely limit the volume's usefulness as an objective source of drug information. The role of the CPS and similar publications in the overall context of current drug company marketing strategies is discussed. Finally, suggestions for improvements are made involving the elimination of direct manufacturer financing, and the creation of an objective, independent, nonprofit publishing agency supported by professional and governmental organizations.

Canada↗

The medical film 1897-1997: Part II. The second half-century.

Following the reluctance of teachers to use film for undergraduate and postgraduate medical education up until the Second World War, the active promotion of medical films after the war was encouraged by the production of catalogues of films available and the publication of medical film reviews both in journals and in books. This resulted in an increased use of films in the three decades following the war until videorecordings began to take their place and film projection is now a rarity in centres of medical education.

Cataloging↗

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