Evaluation of a surgical interface for robotic cryoablation task using an eye-tracking system
Açık, Alper and Erol-Barkana, Duygun and Akgün, Gökhan and Yantaç, Asım Evren and Aydın, Çağla (2016) Evaluation of a surgical interface for robotic cryoablation task using an eye-tracking system. International Journal of Human Computer Studies, 95 . pp. 39-53. ISSN 1071-5819 (Print) 1095-9300 (Online)
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Official URL: http://dx.doi.org/10.1016/j.ijhcs.2016.07.004
Computer-assisted navigation systems coupled with surgical interfaces (SIs) are providing doctors with tools that are safer for patients compared to traditional methods. Usability analysis of the SIs that guides their development is hence important. In this study, we record the eye movements of doctors and other people with no medical expertise during interaction with an SI that directs a simulated cryoablation task. There are two different arrangements for the layout of the same SI, and the goal is to evaluate whether one of these arrangements is ergonomically better than the other. We use several gaze related statistics some of which are employed in an SI design context for the first time. Even though the performance and gaze related analysis reveals that the two arrangements are comparable in many respects, there are also differences. Specifically, one arrangement leads to more saccades along the vertical and horizontal directions, lower saccade amplitudes in the crucial phase of the task, more locally clustered and yet globally spread viewing. Accordingly, that arrangement is selected for future use. The present study provides a proof of concept for the integration of novel gaze analysis tools developed for scene perception studies into the interface development process.
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