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Generation of Triangular Mesh of Coronary Artery Using Mesh Merging

메쉬 병합을 통한 관상동맥의 삼각 표면 메쉬 모델 생성

  • 장영걸 (연세대학교 의과학과) ;
  • 김동환 (한국과학기술연구원 로봇연구단) ;
  • 전병환 (연세대학교 의과학과) ;
  • 한동진 (연세의료원 심혈관연구소) ;
  • 심학준 (연세의료원 심혈관연구소) ;
  • 장혁재 (연세의료원 심장내과)
  • Received : 2015.10.01
  • Accepted : 2015.12.15
  • Published : 2016.04.15

Abstract

Generating a 3D surface model from coronary artery segmentation helps to not only improve the rendering efficiency but also the diagnostic accuracy by providing physiological informations such as fractional flow reserve using computational fluid dynamics (CFD). This paper proposes a method to generate a triangular surface mesh using vessel structure information acquired with coronary artery segmentation. The marching cube algorithm is a typical method for generating a triangular surface mesh from a segmentation result as bit mask. But it is difficult for methods based on marching cube algorithm to express the lumen of thin, small and winding vessels because the algorithm only works in a three-dimensional (3D) discrete space. The proposed method generates a more accurate triangular surface mesh for each singular vessel using vessel centerlines, normal vectors and lumen diameters estimated during the process of coronary artery segmentation as the input. Then, the meshes that are overlapped due to branching are processed by mesh merging and merged into a coronary mesh.

Keywords

triangular mesh;mesh generation;mesh merging;computational fluid dynamics;tubular structure rendering

Acknowledgement

Grant : 다중의료영상을 활용한 3차원 초정밀 시뮬레이션 기반 심.혈관 질환 진단-치료지원 통합소프트웨어 시스템 개발

Supported by : 정보통신기술진흥센터

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