Virtual Heart

Rauno Gordon

ISBN 10: 3838370643 / ISBN 13: 9783838370644

Published by LAP LAMBERT Academic Publishing Apr 2011, 2011

About this Item

This item is printed on demand - it takes 3-4 days longer - Neuware -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. 128 pp. Englisch.

Seller Inventory # 9783838370644

Bibliographic Details

• Title: Virtual Heart
• Publisher: LAP LAMBERT Academic Publishing Apr 2011
• Publication Date: 2011
• Language: English
• ISBN 10: 3838370643
• ISBN 13: 9783838370644
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 8D millimeters 220 millimeters width by 150 millimeters height by 8 millimeters depth
• Weight: 209 grams

About this title

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.

About the Author

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.