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The accuracy of the red dot system: can it improve with training?

Mackay, S and Hargreaves, J 2003, 'The accuracy of the red dot system: can it improve with training?' , Radiography: an Interational Journal of Diagnostic Imaging and Radiation Therapy, 9 (4) , pp. 283-289.

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Abstract

Purpose: This study aimed to investigate whether the introduction of a training programme for radiographers, covering the basic principles of pattern recognition and fracture detection, could increase their ability to exclude fractures within a red dot system. Methods: The red dot system is used in trauma radiology to highlight acute abnormalities for the casualty officer. For a period of 8 weeks seven radiographers were monitored with respect to their sensitivity, specificity and accuracy of use of the red dot. These radiographers were then given a 10-week training programme in the basic principles of trauma radiology. Their sensitivity, specificity and accuracy were again monitored for a period of 8 weeks following the training. Statistical analysis was undertaken using a Student's t-test for paired samples working at the 0.05% level of significance. Results: The accuracy of the radiographers as a group increased from 89.9% before the training to 93% after. Their sensitivity for fracture detection increased from 76.2% to 81.3%. Their specificity for fracture exclusion decreased slightly from 96.4% to 96.1%. These differences were not statistically significant. The false positive rate remained at 3% whereas the false negative rate fell from 7% to 4%. Conclusions: Although the results were not statistically significant, there is evidence to suggest that in this context training had an overall positive effect on the use of the red dot system by this team of radiographers. Future training programmes should focus on the areas of joint effusion, hand fracture, lower limb fracture and epiphyses which was where the errors arose within this study.

Item Type: Article
Uncontrolled Keywords: Trauma, accuracy, sensitivity, specificity, image interpretation
Themes: Subjects / Themes > L Education > LB Theory and practice of education
Subjects / Themes > R Medicine > R Medicine (General)
Subjects / Themes > L Education > LB Theory and practice of education > LB2300 Higher Education
Health and Wellbeing
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Health & Social Care
Colleges and Schools > College of Health & Social Care > School of Health Sciences
Journal or Publication Title: Radiography: an Interational Journal of Diagnostic Imaging and Radiation Therapy
Publisher: Elsevier
Refereed: Yes
ISSN: 10788174
Related URLs:
Depositing User: H Kenna
Date Deposited: 20 Jan 2009 16:24
Last Modified: 20 Aug 2013 16:52
URI: http://usir.salford.ac.uk/id/eprint/1198

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