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Segmentation of Temporal Bone Anatomy for Patient-Specific Virtual Reality Simulation.
Steven Arild Wuyts Andersen1,2,3, Maxwell Bergman2, Jason P Keith4
1Department of Otolaryngology, Nationwide Children's Hospital, Columbus, OH, USA.
The Annals of Otology, Rhinology, and Laryngology
|November 4, 2020
Summary
Accurate segmentation of temporal bone anatomy is crucial for virtual reality (VR) surgical planning. Automated segmentation offers a flexible and feasible approach for patient-specific VR simulations.
Area of Science:
- Medical Imaging
- Surgical Simulation
- Anatomy
Background:
- Patient-specific virtual reality (VR) simulation requires precise segmentation of temporal bone surgical anatomy.
- Key structures include the facial nerve, ossicles, and cochlea.
Purpose of the Study:
- To explore and compare different segmentation approaches for temporal bone surgical anatomy.
- To evaluate methods for patient-specific VR simulation.
Main Methods:
- Retrospective analysis of computed tomography (CT) imaging from 9 pediatric patients.
- Manual segmentation using open-source software.
- Guided segmentation with OTOPLAN software.
- Automated segmentation using an atlas-based algorithm.
Main Results:
- Manual segmentation was time-consuming but flexible.
- OTOPLAN software had limitations in segmented structures and showed user variation.
- Atlas-based automated segmentation demonstrated comparable results to manual segmentation with minimal user interaction and acceptable processing time.
Conclusions:
- Segmentation is fundamental for patient-specific VR simulation in temporal bone surgery.
- Automated segmentation algorithms represent the most flexible and feasible approach.
- Further research is needed for abnormal anatomy cases.
