Immersive Virtual Colonography Viewer for Colon Growths Diagnosis: Design and Think-Aloud Study

Desktop-based virtual colonoscopy is a proven and accurate process for identifying colon abnormalities. However, it is time-consuming. Faster, immersive interfaces for virtual colonoscopy are still incipient and need to be better understood. This article introduces a novel design that leverages VR p...

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Bibliographic Details
Published in:Multimodal technologies and interaction 2024-05, Vol.8 (5), p.40
Main Authors: Serras, João, Duchowski, Andrew, Nobre, Isabel, Moreira, Catarina, Maciel, Anderson, Jorge, Joaquim
Format: Article
Language:English
Subjects:
3D visualization
Abnormalities
Colonoscopy
Colorectal cancer
Design
Efficiency
Eye movements
immersive virtual colonoscopy (IVC)
Medical imaging
Medical imaging equipment
non-invasive diagnosis
Polyps
Rectum
Tumors
Virtual reality
virtual reality (VR)
Visualization
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Summary:Desktop-based virtual colonoscopy is a proven and accurate process for identifying colon abnormalities. However, it is time-consuming. Faster, immersive interfaces for virtual colonoscopy are still incipient and need to be better understood. This article introduces a novel design that leverages VR paradigm components to enhance the efficiency and effectiveness of immersive analysis. Our approach contributes a novel tool highlighting unseen areas within the colon via eye-tracking, a flexible navigation approach, and a distinct interface for displaying scans blended with the reconstructed colon surface. The path to evaluating and validating such a tool for clinical settings is arduous. This article contributes a formative evaluation using think-aloud sessions with radiology experts and students. Questions related to colon coverage, diagnostic accuracy, and time to complete are analyzed with different user profiles. Although not aimed at quantitatively measuring performance, the experiment provides lessons learned to guide other researchers in the field.
ISSN:2414-4088
2414-4088
DOI:10.3390/mti8050040