A kinematic approach for efficient and robust simulation of the cardiac beating motion

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

研究成果: Article

10 引用 (Scopus)

抜粋

Computer simulation techniques for cardiac beating motions potentially have many applications and a broad audience. However, most existing methods require enormous computational costs and often show unstable behavior for extreme parameter sets, which interrupts smooth simulation study and make it difficult to apply them to interactive applications. To address this issue, we present an efficient and robust framework for simulating the cardiac beating motion. The global cardiac motion is generated by the accumulation of local myocardial fiber contractions. We compute such local-to-global deformations using a kinematic approach; we divide a heart mesh model into overlapping local regions, contract them independently according to fiber orientation, and compute a global shape that satisfies contracted shapes of all local regions as much as possible. A comparison between our method and a physics-based method showed that our method can generate motion very close to that of a physics-based simulation. Our kinematic method has high controllability; the simulated ventricle-wall-contraction speed can be easily adjusted to that of a real heart by controlling local contraction timing. We demonstrate that our method achieves a highly realistic beating motion of a whole heart in real time on a consumer-level computer. Our method provides an important step to bridge a gap between cardiac simulations and interactive applications.

元の言語English
記事番号e36706
ジャーナルPLoS ONE
7
発行部数5
DOI
出版物ステータスPublished - 2012 5 30

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ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

これを引用

Ijiri, T., Ashihara, T., Umetani, N., Igarashi, T., Haraguchi, R., Yokota, H., & Nakazawa, K. (2012). A kinematic approach for efficient and robust simulation of the cardiac beating motion. PLoS ONE, 7(5), [e36706]. https://doi.org/10.1371/journal.pone.0036706