Abstract： A tetrahedral mesh generating method based on 2D contour series is proposed to reconstruct 3D medical geometric models of genual tissues. Firstly, contours in the chosen slices are extracted and branch-matched. Secondly, planar domains bounded by these contours in slices are triangulated into 2D triangular meshes. Finally, 3D tetrahedral mesh is generated by forming a set of tetrahedrons between every two adjacent slices based on the corresponding triangular meshes. The proposed method was applied to 3D model reconstruction for the knee joint virtual surgery simulation system, generating several 3D meshes, take, for example, the model of the genual thighbone is a mesh with 494 nodes and 2046 tetrahedral element, and the model of the genual fat tissue is a tetrahedral mesh with 2854 nodes and 14011 tetrahedrons. There 3D models are successfully used to simulate the knee joint surgery, which proves the feasibility and effectiveness of the proposed 3D model reconstruction method.
陈欣 熊岳山. 基于二维轮廓序列的膝关节三维重建[J]. 计算机应用, 2007, 27(3): 546-549.
. 3D Reconstruction of Knee Joint based on 2D Contour Series. Journal of Computer Applications, 2007, 27(3): 546-549.
