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Retrospective review of the drop in observer detection performance over time in lesion-enriched experimentals studies

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Taylor-Phillips, Sian, Elze, Markus C., Krupinski, Elizabeth A., Dennick, Kathryn J., Gale, Alastair G., Clarke, Aileen and Mello-Thoms, Claudia R. (2015) Retrospective review of the drop in observer detection performance over time in lesion-enriched experimentals studies. Journal of Digital Imaging, Volume 28 (Number 1). pp. 32-40. doi:10.1007/s10278-014-9717-9

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Official URL: http://dx.doi.org/10.1007/s10278-014-9717-9

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Abstract

The vigilance decrement describes a decrease in sensitivity or increase in specificity with time on task. It has been observed in a variety of repetitive visual tasks, but little is known about these patterns in radiologists. We investigated whether there is systematic variation in performance over the course of a radiology reading session. We re-analyzed data from six previous lesion-enriched radiology studies. Studies featured 8–22 participants assessing 27–100 cases (including mammograms, chest CT, chest x-ray, and bone x-ray) in a reading session. Changes in performance and speed as the reading session progressed were analyzed using mixed effects models. Time taken per case decreased 9–23 % as the reading session progressed (p < 0.005 for every study). There was a sensitivity decrease or specificity increase over the course of reading 100 chest x-rays (p = 0.005), 60 bone fracture x-rays (p = 0.03), and 100 chest CT scans (p < 0.0001). This effect was not found in the shorter mammography sessions with 27 or 50 cases. We found evidence supporting the hypothesis that behavior and performance may change over the course of reading an enriched test set. Further research is required to ascertain whether this effect is present in radiological practice.

Item Type: Journal Article
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Medicine > Warwick Medical School > Health Sciences > Population, Evidence & Technologies (PET)
Faculty of Medicine > Warwick Medical School > Health Sciences > Statistics and Epidemiology
Faculty of Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH): Radiologists, Vigilance (Psychology)
Journal or Publication Title: Journal of Digital Imaging
Publisher: Springer New York LLC; SiiM
ISSN: 0897-1889
Official Date: February 2015
Dates:
DateEvent
February 2015Published
9 July 2014Available
Volume: Volume 28
Number: Number 1
Page Range: pp. 32-40
DOI: 10.1007/s10278-014-9717-9
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Funder: National Institute for Health Research (Great Britain) (NIHR), University of Warwick, Studienstiftung des Deutschen Volkes [German National Academic Foundation] (SDV)

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