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PubMed · 125436

Interpreting chest radiographs without visual search.

H L Kundel·C F Nodine
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Abstract

Ten radiologists were shown a series of 10 normal and 10 abnormal chest films under two viewing conditions: a 0.2-second flash and unlimited viewing time. The results were compared in terms of verbal content, diagnostic accuracy, and level of confidence. The overall accuracy was surprisingly high (70% true positives) considering that no search was possible. Performance improved as expected with free search (97% true positives). These data support the hypothesis that visual search begins with a global response that establishes content, detects gross deviations from normal, and organizes subsequent foveal checking fixations to conduct a detailed examination of ambiguities. The total search strategy then consists of an ordered sequence of interspersed global and checking fixations.

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CardiomegalyDiagnostic ErrorsFalse Positive ReactionsFemaleFixation, OcularHeartHumansLungLung DiseasesMaleRadiographyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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H L Kundel, C F Nodine. 1975. Interpreting chest radiographs without visual search.. https://doi.org/10.1148/116.3.527

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