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Method for tracking eye gaze during interpretation of endoluminal 3D CT colonography: Technical description and proposed metrics for analysis

The monitoring of eye gaze behaviour when examining two dimensional medical imaging displays is a current method of understanding radiological performance. This work is the first attempt to successfully monitor the performance of radiologists when examining three dimensional computer generated displays of the colon. The resulting metrics will lead to the improved design of medical imaging displays. This is the world’s first research publication on radiologists’ eye gaze behaviour when examining three dimensional CT images of the colon, carried out as part of a National Institute for Health Research (NIHR) funded multi-centre consortium. The work presents state of the art findings in medical imaging and demonstrates that new eye movement parameters are needed when considering radiological performance in examining dynamic medical imaging displays. The new technical approaches led to Prof. Gale being invited as a keynote speaker on medical image perception at the 13th European Conference on Eye Movements in Lund, Sweden in 2013.