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The variation of radiologists' performance over the course of a reading session
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Elze, Markus C., Taylor-Phillips, Sian, Mello-Thoms, Claudia R., Krupinski, Elizabeth A., Gale, Alastair G. and Clarke, Aileen (2013) The variation of radiologists' performance over the course of a reading session. SPIE Proceedings : Medical Imaging 2013: Image Perception, Observer Performance, and Technology Assessment, Volume 8673 (Article number 14867310). doi:10.1117/12.2007872 ISSN 0277-786X.
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Official URL: http://dx.doi.org/10.1117/12.2007872
Abstract
The radiologist’s task of reviewing many cases successively is highly repetitive and requires a high level of concentration. Fatigue effects have, for example, been shown in studies comparing performance at different times of day. However, little is known about changes in performance during an individual reading session. During a session reading an enriched case set, performance may be affected by both fatigue (i.e. decreasing performance) and training (i.e. increasing performance) effects. In this paper, we reanalyze 3 datasets from 4 studies for changes in radiologist performance during a reading session. Studies feature 8-20 radiologists reading and assessing 27-60 cases in single, uninterrupted sessions. As the studies were not designed for this analysis, study setups range from bone fractures to mammograms and randomization varies between studies. Thus, they are analyzed separately using mixed-effects models. There is some indication that, as time goes on, specificity increases (shown with p<0.05 for 2 out of 3 datasets, no significant difference for the other) while sensitivity may also increase (p<0.05 for 1 out of 3 datasets). The difficulty of ‘normal’ (healthy / non-malignant) and ‘abnormal’ (unhealthy / malignant) cases differs (p<0.05 for 3 out of 3 datasets) and the reader’s experience may also be relevant (p<0.05 for 1 out of 3 datasets). These results suggest that careful planning of breaks and session length may help optimize reader performance. Note that the overall results are still inconclusive and a targeted study to investigate fatigue and training effects within a reading session is recommended.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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Journal or Publication Title: | SPIE Proceedings : Medical Imaging 2013: Image Perception, Observer Performance, and Technology Assessment | ||||
Publisher: | S P I E - International Society for Optical Engineering | ||||
ISBN: | 9780819494474 | ||||
ISSN: | 0277-786X | ||||
Official Date: | 28 March 2013 | ||||
Dates: |
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Volume: | Volume 8673 | ||||
Number: | Article number 14867310 | ||||
Number of Pages: | 6 | ||||
DOI: | 10.1117/12.2007872 | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
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