Virtual Heart: Modelling of Cardiac Dynamics and Intracardiac Bioimpedance - Couverture souple

Gordon, Rauno

 
9783838370644: Virtual Heart: Modelling of Cardiac Dynamics and Intracardiac Bioimpedance
Couverture souple
ISBN 10 : 3838370643 ISBN 13 : 9783838370644
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

I describe a system to study the relation between cardiac stroke volume and intracardiac bioimpedance signal. The system is a MATLAB based software composed of 3D dynamic heart modelling part and impedance signal simulation part. This system allows to conduct virtual experiments with dynamic heart models that can be designed with characteristics of real dynamic hearts. The simulation part computes the bioimpedance signal with Finite Difference Method. Electrode locations can be specified anywhere in the virtual heart and the FDM computes the complex electrical potential in the whole modelling domain. This method effectively gives the solution to the forward problem of electrical bioimpedance. Sample results of the working system are presented as simulated complex impedance signals at the catheter electrodes with 5 different stroke volumes of the heart and at 2 different frequencies. The results show that magnitude and also phase of the signal correlate with the changing volume of the heart. The impedance of static heart with anisotropic tissue properties was also studied and it uncovered the extent of errors that improper use of anisotropy could introduce.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

I describe a system to study the relation between cardiac stroke volume and intracardiac bioimpedance signal. The system is a MATLAB based software composed of 3D dynamic heart modelling part and impedance signal simulation part. This system allows to conduct virtual experiments with dynamic heart models that can be designed with characteristics of real dynamic hearts. The simulation part computes the bioimpedance signal with Finite Difference Method. Electrode locations can be specified anywhere in the virtual heart and the FDM computes the complex electrical potential in the whole modelling domain. This method effectively gives the solution to the forward problem of electrical bioimpedance. Sample results of the working system are presented as simulated complex impedance signals at the catheter electrodes with 5 different stroke volumes of the heart and at 2 different frequencies. The results show that magnitude and also phase of the signal correlate with the changing volume of the heart. The impedance of static heart with anisotropic tissue properties was also studied and it uncovered the extent of errors that improper use of anisotropy could introduce.

Biographie de l'auteur

Rauno Gordon graduated Tallinn University of Technology with a degree in physics in 2000 and continued research in the Institute of Electronics. In 2007 he defended his PhD in the field of bioimpedance and computer simulation of bioelectric signals. He has since worked in international research groups and EU projects with computer simulations.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3838370643
ISBN 13 
9783838370644
Reliure
Broché
Nombre de pages
128
Coordonnées du fabricant
non disponible
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