Virtual reality

Virtual reality (VR) is an imaging technology that uses high-resolution computer-generated graphics and multi-sensor interaction technologies to provide an immersion into a virtual or artificial digital world.

Unlike augmented reality (AR) which overlays simulated objects into the real-world background, virtual reality (VR) creates a simulated virtual three-dimensional (3D) environment ¹.

Clinical applications

This technology can be used to display volumetric medical images, such as computed tomography (CT) and magnetic resonance imaging (MRI) allowing for a more accurate representation of the three-dimensional nature of anatomical structures which is beneficial in diagnosis, education and procedural planning ².

Interacting with volumetric images in a virtual space with a stereoscopic view has several advantages over the conventional monoscopic 2D slices on a flat panel: 

• perception of depth and distance ^3,4,5

• natural free movement in virtual space ^3,4

• consistent images and cancels variable environment lighting ⁶

Virtual reality has also been adopted as part of radiography education with the virtual environment replacing or adding to the traditional simulation learning for students prior to and during clinical placements ⁷ with the option to perform imaging on a virtual patient in the VR suite using VR headsets and hand controllers, allowing them to learn through deliberate practice. The VR software also allows students to make and learn from their mistakes for deeper understanding ⁷.