A new dynamic surface reconstruction method for cardiac 3D mapping procedure

DOI

10.2991/mmebc-16.2016.382How to use a DOI?

Keywords

Cardiac Mapping; Dynamic Surface Reconstruction; Delaunay Based; Iterative Replacement

Abstract

During cardiac 3D mapping procedure, the dynamic surface reconstruction of heart chambers helps to diagnose cardiac disease and improve the operation precision by keeping the catheter in place. The paper introduces a new fast dynamic surface reconstruction method considering the distribution characteristics of the sample points collected during ablation. The algorithm defines the possible optimum reconstructed surface embedding in the Delaunay diagram of the sample points, and uses an iteration method to construct the defined optimum surface. The optimum reconstructed surface constraints can guarantee that the reconstructed surface is geometrically approximate to the original surface. The algorithm successively inserts points into the reconstructed surface by replacing the surface structure in a small neighbor of the inserted points. In order to keeping the integrity of the surface, the algorithm completes the replacement on basis of inside/outside of the Delaunay diagram. In order to assure a topological equivalence between the reconstructed surface and the original surface, the paper introduces an inflating method to keep reconstructed surface manifold. The reconstructed surface is smoothed by the Loop subdivision algorithm. The paper experiments on six left atrium (LA) CT models, and the reconstruction results demonstrate that the proposed method can progressively reconstruct a surface which is geometrically and topologically approximate to the original heart chamber with a fast speed.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yingsong Huang
AU  - Jian Wu
AU  - Riqing Chen
PY  - 2016/06
DA  - 2016/06
TI  - A new dynamic surface reconstruction method for cardiac 3D mapping procedure
BT  - Proceedings of the 2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer
PB  - Atlantis Press
SP  - 1896
EP  - 1903
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmebc-16.2016.382
DO  - 10.2991/mmebc-16.2016.382
ID  - Huang2016/06
ER  -