Method for Tracking Eye Gaze during Interpretation of Endoluminal 3D CT Colonography: Technical Description and Proposed Metrics for Analysis

Abstract

(2013) Method for tracking eye gaze during interpretation of endoluminal 3D CT colonography: technical description and proposed metrics for analysis. Radiology, 267 (3).Downloaded from: http://insight.cumbria.ac.uk/id/eprint/1971/ Usage of any items from the University of Cumbria's institutional repository 'Insight' must conform to the following fair usage guidelines.Any item and its associated metadata held in the University of Cumbria's institutional repository Insight (unless stated otherwise on the metadata record) may be copied, displayed or performed, and stored in line with the JISC fair dealing guidelines (available here) for educational and not-for-profit activities provided that• the authors, title and full bibliographic details of the item are cited clearly when any part of the work is referred to verbally or in the written form To develop an eye-tracking method applicable to threedimensional (3D) images, where the abnormality is both moving and changing in size.

Visual Perception in Nuclear Medicine and Volumetric Data

“…Radiologists inspected virtual colons, which were rendered from CT volumes. Phillips et al [25] showed that experts tended to have shorter dwell times per xations and shorter cascades amplitudes than inexperience observers. As this contradicted previous studies on 2D modalities [26], objectives for further medical image perception research on 3D data arose to investigate additional perceptual-cognitive factor involved in the inspection of multidimensional and multimodality data (Fig.…”

“…The observer had focused on the polyp within 2 s after it appeared for the rst time (t = 0.07 s). Adapted from [25].…”

“…Another recent eye-tracking study [25] that involved the inspection of volumetric data was based on ythrough modes of virtual colonoscopy examinations, where the abnormality (i.e., polyps) was moving and changing in size (Fig. 4).…”

The Flash-Preview Moving Window Paradigm: Unpacking Visual Expertise One Glimpse at a Time

“…We therefore see the FPMW paradigm as a continuation of this long tradition to understand visual expertise using eye-tracking methodology alongside traditional 'flash' methodologies. Although this FPMW methodology currently focuses on static image interpretation, and not on how dynamic medical images are interpreted (Bertram, Helle, Kaakinen, & Svedström, 2013;Drew et al, 2013b;Phillips et al, 2013) we are nevertheless excited to see how the FPMW will force us to re-evaluate what we think we know about visual expertise in medical image perception. Unlike many of the other methodologies that can be used to investigate visual expertise and are discussed in this special issue, research has only just begun on using FPMW to understand visual expertise.…”

Image Size Influences Visual Search and Perception of Hemorrhages When Reading Cranial CT

“…However, not many studies have yet used eye tracking to study perception and cognition in the context of volumetric medical images. This may partly be due to a more complicated setting where fixations span several slices and the calculation of classical parameters such as the time to first fixation having to be started from the first point in time when a lesion is visible rather than from the case onset (Phillips et al, 2013). Studies that have used eye tracking in the volumetric imaging context have so far often avoided these challenges by only using single images from the entire stack (Matsumoto et al, 2011) or by using raw data instead of fixation data (Drew et al, 2013;Drew, Vo, & Wolfe, 2013a).…”