Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 130-137 |
| Number of pages | 8 |
| Journal | Transactions of Japanese Society for Medical and Biological Engineering |
| Volume | 53 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2015 Oct 29 |
| Externally published | Yes |
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Keywords
- Cardiac beating motion
- Shape matching dynamics
- Visual simulation
ASJC Scopus subject areas
- Biomedical Engineering
Cite this
Visual simulation of cardiac beating motion with shape matching dynamics. / Ijiri, Takashi; Ashihara, Takashi; Umetani, Nobuyuki; Koyama, Yuki; Igarashi, Takeo; Haraguchi, Ryo; Yokota, Hideo; Nakazawa, Kazuo.
In: Transactions of Japanese Society for Medical and Biological Engineering, Vol. 53, No. 3, 29.10.2015, p. 130-137.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Visual simulation of cardiac beating motion with shape matching dynamics
AU - Ijiri, Takashi
AU - Ashihara, Takashi
AU - Umetani, Nobuyuki
AU - Koyama, Yuki
AU - Igarashi, Takeo
AU - Haraguchi, Ryo
AU - Yokota, Hideo
AU - Nakazawa, Kazuo
PY - 2015/10/29
Y1 - 2015/10/29
N2 - 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.
AB - 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.
KW - Cardiac beating motion
KW - Shape matching dynamics
KW - Visual simulation
UR - http://www.scopus.com/inward/record.url?scp=84945578740&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84945578740&partnerID=8YFLogxK
U2 - 10.11239/jsmbe.53.130
DO - 10.11239/jsmbe.53.130
M3 - Article
AN - SCOPUS:84945578740
VL - 53
SP - 130
EP - 137
JO - BME = Bio medical engineering / henshu, Nihon ME Gakkai
JF - BME = Bio medical engineering / henshu, Nihon ME Gakkai
SN - 1347-443X
IS - 3
ER -