Visual simulation of cardiac beating motion with shape matching dynamics

Takashi Ijiri, Takashi Ashihara, Nobuyuki Umetani, Yuki Koyama, Takeo Igarashi, Ryo Haraguchi, Hideo Yokota, Kazuo Nakazawa

研究成果: Article査読

抄録

A shape matching dynamics (SMD) is a robust and efficient elastic model based on geometric constraints. This article introduces our study [1] that adopts SMD to visual simulation of cardiac beating motion. In our technique, a heart is represented by a tetrahedral mesh model and a local region is defined at each vertex by connecting its immediate neighbors. During the simulation, we first contract all local regions depending on predefined muscle fiber orientations and contraction rate. Then using SMD, we compute the global shape of the heart model so that it satisfies the contracted local regions. Our technique introduces a fiber-orientation-dependent weighting function to emulate an anisotropic stiffness of myocardium. Since our technique is based on SMD, it is possible to compute cardiac motion in real-time on a commercially available PC.

本文言語English
ページ(範囲)130-137
ページ数8
ジャーナルTransactions of Japanese Society for Medical and Biological Engineering
53
3
DOI
出版ステータスPublished - 2015 10 29
外部発表はい

ASJC Scopus subject areas

  • 生体医工学

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