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

IF 2.4 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Multimodal Technologies and Interaction Pub Date : 2024-05-13 DOI:10.3390/mti8050040

J. Serras, Andrew Duchowski, I. Nobre, Catarina Moreira, Anderson Maciel, Joaquim A. Jorge

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Abstract

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.

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用于结肠增生诊断的沉浸式虚拟结肠造影查看器：设计与思考研究

基于桌面的虚拟结肠镜检查是一种行之有效的、准确的结肠异常鉴别方法。然而，这种方法非常耗时。用于虚拟结肠镜检查的更快、更身临其境的界面仍处于萌芽阶段，需要更好地理解。本文介绍了一种新颖的设计，它利用虚拟现实范例组件来提高沉浸式分析的效率和效果。我们的方法提供了一种新颖的工具，通过眼动跟踪、灵活的导航方法和独特的界面来显示与重建结肠表面相融合的扫描结果，从而突出显示结肠内未见的区域。在临床环境中评估和验证这种工具的过程非常艰辛。本文通过与放射科专家和学生进行思考讨论，对其进行了形成性评估。针对不同用户的情况，分析了与结肠覆盖率、诊断准确性和完成时间相关的问题。虽然该实验的目的不是定量测量性能，但它为该领域的其他研究人员提供了指导经验。

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