TITLE

Nonlinear excited waves on the interventricular septum

AUTHOR(S)
Bekki, Naoaki; Harada, Yoshifumi; Kanai, Hiroshi
PUB. DATE
November 2012
SOURCE
AIP Conference Proceedings;Nov2012, Vol. 1493 Issue 1, p96
SOURCE TYPE
Conference Proceeding
DOC. TYPE
Article
ABSTRACT
Using a novel ultrasonic noninvasive imaging method, we observe some phase singularities in propagating excited waves on a human cardiac interventricular septum (IVS) for a healthy young male. We present a possible physical model explaining one-dimensional dynamics of phase singularities in nonlinearly excited waves on the IVS. We show that at least one of the observed phase singularities in the excited waves on the IVS can be explained by the Bekki-Nozaki hole solution of the complex Ginzburg-Landau equation without any adjustable parameters. We conclude that the complex Ginzburg-Landau equation is such a suitable model for one-dimensional dynamics of cardiac phase singularities in nonlinearly excited waves on the IVS.
ACCESSION #
83183128

 

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