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Finding lung nodules with and without comparative visual scanning

Finding lung nodules with and without comparative visual scanning Detection of lung nodules contained in chest X-ray films was studied during both tachistoscopic presentation and free search. Lung nodules were first rated for their visibility against the anatomical background of the chest films. With tachistoscopic presentation, detection accuracy was influenced by rated visibility and by exposure durations up to 180 msec. Eye movements and fixations were recorded during free search. These measures indicated that radiologists use a comparative scanning strategy to differentiate nodules from anatomical structures. The frequency of comparative scans was influenced by rated visibility: Less visible nodules received more comparisons than the more visible nodules. We believe that the radiologist compares suspected nodules with the features of normal structures which serve as references for decisions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Attention, Perception, & Psychophysics Springer Journals

Finding lung nodules with and without comparative visual scanning

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References (31)

Publisher
Springer Journals
Copyright
Copyright
Subject
Psychology; Cognitive Psychology
ISSN
1943-3921
eISSN
1532-5962
DOI
10.3758/BF03207377
Publisher site
See Article on Publisher Site

Abstract

Detection of lung nodules contained in chest X-ray films was studied during both tachistoscopic presentation and free search. Lung nodules were first rated for their visibility against the anatomical background of the chest films. With tachistoscopic presentation, detection accuracy was influenced by rated visibility and by exposure durations up to 180 msec. Eye movements and fixations were recorded during free search. These measures indicated that radiologists use a comparative scanning strategy to differentiate nodules from anatomical structures. The frequency of comparative scans was influenced by rated visibility: Less visible nodules received more comparisons than the more visible nodules. We believe that the radiologist compares suspected nodules with the features of normal structures which serve as references for decisions.

Journal

Attention, Perception, & PsychophysicsSpringer Journals

Published: Jan 8, 2011

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