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How to perform a critical appraisal of diagnostic tests: 7 steps
Aamer Chughtai1, Aine Marie Kelly, Paul Cronin
1Department of Radiology, Division of Cardiothoracic Radiology, University of Michigan, Ann Arbor, MI, USA.
Abstract:
The critically appraised topic (CAT) is a format in evidence-based practice for sharing information. A CAT is a standardized way of summarizing the most current research evidence focused on a pertinent clinical question. Its aim is to provide both a critique of the most up-to-date retrieved research and an indication of the clinical relevance of results. A clinical question is initially generated following a patient encounter, which leads to and directs a literature search to answer the clinical question. Studies obtained from the literature search are assigned a level of evidence. This allows the most valid and relevant articles to be selected and to be critically appraised. The results are summarized, and this information is translated into clinically useful procedures and processes.
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