Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
AUTOMATING VIRTUAL ORAL AND MAXILLOFACIAL SURGICAL PLANNING: DEVELOPMENT OF AN INTERFACE WITH PYTHON IN OPEN-SOURCE SOFTWARE
Submission Author:
Dayanna Axly Santiago Villantoy , SP , Brazil
Co-Authors:
Dayanna Axly Santiago Villantoy, Lívia Helena Martineli Teixeira , Marcília Valéria Guimarães, Pedro Noritomi, Denize Novais
Presenter: Dayanna Axly Santiago Villantoy
doi://10.26678/ABCM.COBEM2023.COB2023-0754
Abstract
Using three-dimensional (3D) models for surgical planning is becoming increasingly relevant in health and provides benefits such as reduced costs and surgical time. Although commercial Computer-Aided Design (CAD) software can obtain and manipulate 3D medical images, their high cost limits their use in complex surgical planning, particularly in public hospitals. So, open-source software tools, such as Invesalius, which reconstructs 3D biomodels from images generated by tomography (TC) and magnetic resonance (MR) imaging, and Blender, which has various modelling tools for editing and transforming models, are more feasible. In this context, this article aims to develop a plugin in open-source software like Blender that integrates a Python interpreter to automate and customise biomodels used in complex buccomaxillofacial surgical planning. The plugin generates mirrored replicas of regions affected by craniofacial dysfunctions. For that, a panel was developed with functions adapted to import/export the .stl file of the biomodel and combine modifiers and tools to optimise and reduce the time and required steps for a specific edition of stl mesh. This procedure allows the definition of a customised set that follows the anatomical landmarks of the three-dimensional model without modifying the object's proportions with the edits performed. The validation method compares the mesh generated after using the plugin with the original STL mesh from the tomography scan. Additionally, the entire process involves collaboration with a specialised surgeon in the field. Preliminary tests of the plugin functionality conducted at the Centro de Tecnologia da Informação Renato Archer (CTI Renato Archer) showed relevant results for mirroring the healthy region onto the affected area, the essential procedure for complex surgical planning of mandibular, orbital and maxillofacial reconstructions. Therefore, this study contributes to developing more accessible technologies for complex surgical buccomaxilofacial planning in hospitals by using open-source software as a cost-effective alternative to commercial 3D modelling software.
Keywords
Plugin, Biomodels, Open Source Software, Medical Images, Python, 3D Modeling, Surgical planning, STL, Bioengenieering
