The effect of a digital training tool to aid chest image interpretation: Hybridising eye tracking technology and a decision support tool

Introduction: Eye tracking technology, checklists and search strategies have been demonstrated as useful aids in image interpretation. A training tool was developed, by the research team, which included these features. This study aimed to evaluate the effect of the training tool on participant image interpretation performance. Methods: The study was carried out with reporting radiographers who had either commenced training in chest image interpretation (n = 12) or were trained in musculoskeletal image interpretation (n = 23) (total n = 35). Participants were allocated to a control or intervention group. Participants completed an initial assessment at recruitment and re-attended nine months later for a follow-up assessment. The intervention group were given unlimited access to a digital training tool. During assessments participants interpreted 20 chest images whilst using eye tracking technology (total of 1400 images were interpreted). A confidence level was obtained from participants on their diagnosis and a questionnaire, to obtain demographic data, was completed following the assessment. Results: Improvements were seen in the confidence of intervention group participants (p < 0.05). False Positive (FP) scores decreased for both the control and intervention group (p < 0.05), this decrease was from 4.20 to 3.20 for the control group and from 5.87 to 3.27 for the intervention group. True Negative (TN) scores increased, from 5.13 to 6.73 for the intervention group (p < 0.05). Mean decision time decreased for both the control and intervention group. Conclusion: The tool led to positive effects on participant performance and could be a useful aid in chest image interpretation learning. Implications for practice: Improvements in performance were observed with a digital tool. The tool could improve image interpretation methods and training. Crown Copyright (c) 2020 Published by Elsevier Ltd on behalf of The College of Radiographers. All rights reserved.

Automated summary

The study demonstrated that the use of a digital training tool had a positive impact on participant image interpretation performance, leading to increased confidence levels and decreased false positive rates while improving true negative rates. The tool showed potential in enhancing image interpretation methods and training.