Can a checklist reduce SOS errors in chest radiography?
Can a checklist reduce SOS errors in chest radiography?
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DOI：
10.1016/j.acra.2005.11.032
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发表时间：
2006-03-01
影响因子：
4.8
通讯作者：
Schartz, KM
中科院分区：
文献类型：
--
作者：
Berbaum, K;Franken, EA;Schartz, KM
基本原理和目标。先前的一项研究表明，当观察者在视觉搜索和解释胸片时用语言表达他们的注意力焦点时，会意外地保护他们免受搜索满意度（SOS）效应的影响。我们建议，如果每个观察者都制定了一份非正式的清单来帮助生成口头描述，可能就会发生对SOS的保护。本研究的目的是确定一份正式的检查表是否能减少胸部放射学中的SOS效应。材料与方法。57张胸片，其中一半表现出不同的原生异常，由20名观察者阅读两次，一次有，一次没有添加模拟肺结节。使用污染的二正态ROC模型估计每个观察者在每个治疗条件下用于检测原生异常的受试者工作特征（ROC）曲线下的面积。在目前的实验中，放射科医生在解释时使用了一个清单，而不是描述他们的视觉搜索。结果与使用同一组x线片的语言化研究结果进行了比较。虽然使用检查表时没有发现SOS效应，但平均而言，使用检查表的ROC表现比口头报告正在进行的搜索时差得多（0.68对0.75，F(1,37) = 17.26, P < 0.001）。我们的结果表明，建议使用一个自我提示的清单来抵消SOS是不合理的。口头搜索相对于使用强制清单的优势可能是基于每一种干预与观察者搜索x线片的内部策略的一致性。
Rationale and Objectives. A previous study demonstrated unexpected protection from satisfaction of search (SOS) effects when observers verbalized the focus of their attention during visual search and interpretation of chest radiographs. We suggested that protection from SOS might have occurred if each observer developed an informal checklist to help generate the verbal descriptions. The objective of this study is to determine whether a formal checklist reduces SOS effects in chest radiology.Materials and Methods. Fifty-seven chest radiographs, half of which demonstrated diverse, native abnormalities were read twice by 20 observers, once with and once without the addition of a simulated pulmonary nodule. Area under the receiver operating characteristic (ROC) curve for detecting the native abnormalities was estimated for each observer in each treatment condition using the contaminated binormal ROC model. Radiologists in the current experiment used a checklist during the interpretation, rather than describing their visual search. Results were compared with those of the verbalization study, which used the same set of radiographs.Results. Although no SOS effect was found when the checklist was used, ROC performance was, on average, much poorer with the checklist than when ongoing search was reported verbally (0.68 versus 0.75, F(1,37) = 17.26, P < .001).Conclusions. Our results indicate that the recommendation to use a self-prompting checklist to counteract SOS is not warranted. The relative superiority of verbalizing search over using an imposed checklist may be based on the consistency of each of these interventions with the observer's internal strategy for searching radiographs.