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Generating classes of 3D virtual mandibles for AR-based medical simulation
Neha R Hippalgaonkar1, Alexa D Sider, Felix G Hamza-Lup
1Department of Radiation Oncology, University of Central Florida, Orlando, FL, USA.
Summary
Researchers developed a method to accurately scale 3D virtual mandible models to match real patient anatomy. This 3D model scaling achieves morphometric equivalence within 1.30 mm RMS error for enhanced medical simulation.
Area of Science:
- Medical Simulation
- 3D Imaging Technology
- Augmented Reality (AR)
Background:
- Simulation and modeling are valuable tools across engineering, forensic science, and medicine.
- 3D imaging advancements enable augmented reality (AR) and mixed reality for training simulations.
Purpose of the Study:
- To develop and validate a method for scaling 3D virtual human mandible models to match a target patient's anatomy.
- Achieve morphometric equivalence with a root mean square (RMS) error of less than 2 mm.
Main Methods:
- Computed a relative scaling factor based on distances between landmarks on source and target mandibles.
- Applied the scaling factor to a 3D virtual mandible model.
Main Results:
- A method was developed to scale 3D virtual mandibles to real patient anatomy.
- The scaling method achieved morphometric equivalence within a 1.30 mm RMS error.
Conclusions:
- The scaled virtual mandible can serve as a reference for registering other anatomical models (e.g., lungs) onto a human patient simulator (HPS).
- Registration is facilitated by the physical relationship between the mandible and the spinal column.
