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Teaching search patterns to medical trainees in an educational laboratory to improve perception of pulmonary nodules

Teaching search patterns to medical trainees in an educational laboratory to improve perception... Abstract. The goal of this research is to demonstrate that teaching healthcare trainees a formal search or scan pattern for evaluation of the lungs improves their ability to identify pulmonary nodules on chest radiographs (CXRs). A group of physician assistant trainees were randomly assigned to control and experimental groups. Each group was shown two sets of CXRs, each set with a nodule prevalence of approximately 50%. The experimental group received search pattern training between case sets, whereas the control group did not. Both groups were asked to mark nodules when present and indicate their diagnostic confidence. Subject performance at nodule detection was quantified using changes in area under the localization receiver operating characteristic curve ( Δ AUC ). There was no significant improvement in performance between case sets for the control group. There was a significant improvement in subject performance after training for the experimental group, Δ AUC = 0.1539 , p = 0.0012 . These results demonstrate that teaching a search pattern to trainees improves their ability to identify nodules and decreases the number of perceptual errors in nodule identification, and suggest that our knowledge of medical image perception may be used to develop rational tools for the education of healthcare trainees. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Medical Imaging SPIE

Teaching search patterns to medical trainees in an educational laboratory to improve perception of pulmonary nodules

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Publisher
SPIE
Copyright
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Subject
Special Section on Medical Image Perception and Observer Performance; Paper
ISSN
2329-4302
eISSN
2329-4310
DOI
10.1117/1.JMI.3.1.011006
pmid
26870749
Publisher site
See Article on Publisher Site

Abstract

Abstract. The goal of this research is to demonstrate that teaching healthcare trainees a formal search or scan pattern for evaluation of the lungs improves their ability to identify pulmonary nodules on chest radiographs (CXRs). A group of physician assistant trainees were randomly assigned to control and experimental groups. Each group was shown two sets of CXRs, each set with a nodule prevalence of approximately 50%. The experimental group received search pattern training between case sets, whereas the control group did not. Both groups were asked to mark nodules when present and indicate their diagnostic confidence. Subject performance at nodule detection was quantified using changes in area under the localization receiver operating characteristic curve ( Δ AUC ). There was no significant improvement in performance between case sets for the control group. There was a significant improvement in subject performance after training for the experimental group, Δ AUC = 0.1539 , p = 0.0012 . These results demonstrate that teaching a search pattern to trainees improves their ability to identify nodules and decreases the number of perceptual errors in nodule identification, and suggest that our knowledge of medical image perception may be used to develop rational tools for the education of healthcare trainees.

Journal

Journal of Medical ImagingSPIE

Published: Jan 1, 2016

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