Blackmore C Craig
Department of Radiology, Harborview Medical Center, University of Washington, 325 Ninth Avenue, Box 359728, Seattle, WA 98104, USA.
Acad Radiol. 2004 Feb;11(2):134-40. doi: 10.1016/s1076-6332(03)00651-2.
To practice evidence-based radiology, knowledge of how to critically assess the literature is vital. This article outlines how to evaluate the radiology literature by asking these questions: Is it true?, Is it relevant?, and Is it sufficient? Clinical examples are used to explain several important causes of bias, as well as to clarify how these biases can affect the relevance of a particular study to a given clinical situation. Finally, discussion centers on the strength of evidence for both positive and negative findings in a research study.
要践行循证放射学，掌握如何批判性地评估文献的知识至关重要。本文概述了通过提出以下问题来评估放射学文献的方法：它是真实的吗？它相关吗？它充分吗？文中使用临床实例来解释几种重要的偏倚原因，以及阐明这些偏倚如何影响某项特定研究与特定临床情况的相关性。最后，讨论集中在研究中阳性和阴性结果的证据强度上。
