High-Performance Virtual Reality Volume Rendering of Original Optical Coherence Tomography Point-Cloud Data Enhanced...

Area of Science:

• Ophthalmology
• Medical Imaging
• Virtual Reality Technology

Background:

• Optical coherence tomography (OCT) is a crucial imaging modality in ophthalmology.
• Current OCT visualization methods may limit the understanding of complex 3D structures.
• Virtual reality (VR) offers immersive and interactive visualization potential.

Purpose of the Study:

• To test the feasibility of a novel VR technology for displaying OCT data.
• To evaluate user experience and potential applications of VR-based OCT visualization.

Main Methods:

• Developed a VR program using C++/OpenGL to import and display volumetric OCT data in real-time (180 fps).
• Utilized a high-end computer and tethered head-mounted display for the VR experience.
• Conducted a user evaluation study with 57 participants, including ophthalmologists, assessing simulator sickness and user experience.

Main Results:

• The VR-OCT system was well-tolerated, with minimal side effects reported (mean SSQ score of 5.8).
• No significant differences in side effects were observed between VR-naïve and experienced users.
• Participants reported an enjoyable 'presence effect' and found the VR-OCT system usable and satisfying.

Conclusions:

• A novel VR imaging technique was successfully developed for displaying and interacting with OCT data.
• This technology represents a next-generation OCT display method with potential for patient engagement, education, and training.
• The system offers new perspectives and interactions with point-cloud OCT data in a high-speed digital environment.