Topological Fragmentation of Medical 3D Surface Mesh Models for Multi-Hierarchy Anatomical Classification

Research output: Contribution to journalArticlepeer-review

Abstract

High resolution 3D mesh representations of patient anatomy with appendant functional classification are of high importance in the field of clinical education and therapy planning. Thereby, classification is not always possible directly from patient morphology, thus necessitating tool support. In this work a hierarchical mesh data model for multi-hierarchy anatomical classification is introduced, allowing labeling of a patient model according to various medical taxonomies. The classification regions are thereby specified utilizing a spline representation to be placed and deformed by a medical expert at low effort. Furthermore, application of randomized dilation allows conversion of the specified regions on the surface into fragmented and closed sub-meshes, comprising the entire anatomical structure. As proof of concept, the semi-automated classification method is implemented for VTK library and visualization of the multi-hierarchy anatomical model is validated with OpenGL, successfully extracting sub-meshes of the brain lobes and preparing classification regions according to Brodmann area taxonomy.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalInternational Journal of Electronics and Telecommunications
Volume61
Issue number2
DOIs
Publication statusPublished - 1 Jun 2015

Keywords

  • 3D surface mesh
  • functional classification in medicine
  • levels of detail
  • multi-hierarchy classification
  • spline-based surface selection

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