Development of a navigable 3D virtual model of temporal bone anatomy

Abstract

Background

Computed Tomography (CT) scanning offers an accurate structural definition of bones, blood vessels, and soft tissues; however, mental integration of cross-sectional 2D CT images for a 3D understanding of complex anatomical structures becomes difficult when the field of view is confined to the temporal bone. This project tried to provide a feasible solution to this problem by creating a navigable 3D virtual model which may aid in better comprehension of the temporal bone anatomy.

Methods

A helical-CT scan was used to obtain high-resolution cross-sectional slices of a cadaveric human temporal bone. Using the volume-rendering capabilities of 3D Slicer^®, which involves volume data management, cropping of the data set, and threshold painting, detailed anatomical structures were segmented based on the intensity captured from different regions. This volumetric data was converted to an interactive virtual model using Blender^®.

Results

The final product is a web page that allows interaction and navigation with a 3D annotated model of the temporal bone, which can be accessed from any device with a web browser.

Conclusion

This model can function as a training tool for students, teachers, and practitioners to understand and review the complex anatomy of the temporal bone.

Keywords:

• Temporal bone
• virtual model
• teaching tool
• simulation
• anatomy

Ethical approval

The author certifies that they have considered all ethical guidelines and adheres to the legal requirements of the study country. The images and other information reported in the article is original and free of plagiarism. There was no physical, social, psychological and all other types of harm done to any person or animal in the project. The project was undertaken strictly for developmental purposes.

Disclosure statement

No potential conflict of interest was reported by the author(s).