Towards Placental Surface Vasculature Exploration in Virtual Reality

Johannes Novotny, Wesley R. Miller, François I. Luks, Derek Merck, Scott Collins, David H. Laidlaw

View presentation: 2020-10-29T17:15:00Z GMT-0600 Change your timezone on the schedule page
2020-10-29T17:15:00Z
Exemplar figure
A user in our YURT VR Display annotating a large-scale placenta dataset.
Fast forward

Direct link to video on YouTube: https://youtu.be/09daRgV3shg

Keywords

Magnetic resonance imaging, Biomedical imaging, Data visualization, Rendering (computer graphics), Virtual reality, Three-dimensional displays

Abstract

We present a case study evaluating the potential for interactively identifying placental surface blood vessels using magnetic resonance imaging (MRI) scans in virtual reality (VR) environments. We visualized the MRI data using direct volume rendering in a high-fidelity CAVE-like VR system, allowing medical professionals to identify relevant placental vessels directly from volume visualizations in the VR system, without prior vessel segmentation. Participants were able to trace most of the observable vascular structure, and consistently identified blood vessels down to diameters of 1 mm, an important requirement in diagnosing vascular diseases. Qualitative feedback from our participants suggests that our VR visualization is easy to understand and allows intuitive data exploration, but complex user interactions remained a challenge. Using these observations, we discuss implications and requirements for spatial tracing user interaction methods in VR environments. We believe that VR MRI visualizations are the next step towards effective surgery planning for prenatal diseases.