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Proceedings Paper

Where’s WALDO: a potential tool for training radiology residents?
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Paper Abstract

We investigated the effects of using games to identify hidden abnormalities to enhance visual diagnostic skills in radiology residents. Radiology residents viewed 50 chest images while their eye position was recorded. They were then given a Where’s WALDO book to study over 3 weeks. They then reviewed the 50 chest images again. Performance in detecting abnormalities and visual search parameters were analyzed. There was no significant difference as a function of Waldo vs control for pre vs post testing. With respect to the eye-tracking data, the first measure considered was total viewing time. Overall there was a significant difference as a function of Waldo vs control group (z = 2.332, p = 0.0197) and pre vs post (F = 43.48, p < 0.0001) with those in the Waldo group experiencing a larger drop in viewing time from pre (mean = 20.65, sd = 15.29 Waldo; mean = 12.43, sd = 6.91 control) to post (mean = 14.62, sd = 10.32 Waldo; mean = 10.86, sd = 6.11 control). Fixation durations were significantly shorter (F = 16.51, p < 0.0001) pre (mean = 332.31, sd = 232.47 Waldo; mean = 378.32, sd = 234.88 control) than post (mean = 328.36, sd = 210.41 Waldo; mean = 359.45, sd = 228.17 control) and for control vs Waldo (F = 188.56, p < 0.0001). Practicing Where’s WALDO or similar nonradiology search task images may facilitate the acquisition of radiology image interpretation skills.

Paper Details

Date Published: 16 March 2020
PDF: 6 pages
Proc. SPIE 11316, Medical Imaging 2020: Image Perception, Observer Performance, and Technology Assessment, 1131605 (16 March 2020); doi: 10.1117/12.2550460
Show Author Affiliations
Elizabeth A. Krupinski, Emory Univ. School of Medicine (United States)
Henry Zhan, Emory Univ. School of Medicine (United States)
Sadaf Sahraian, Johns Hopkins Univ. School of Medicine (United States)
Elham Beheshtian, Johns Hopkins Univ. School of Medicine (United States)
Robert E. Morales, Univ. of Maryland School of Medicine (United States)
David Yousem, Johns Hopkins Univ. School of Medicine (United States)


Published in SPIE Proceedings Vol. 11316:
Medical Imaging 2020: Image Perception, Observer Performance, and Technology Assessment
Frank W. Samuelson; Sian Taylor-Phillips, Editor(s)

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