Recent experimental and theoretical results have stressed the importance
of modeling studies of reentrant arrhythmias in cardiac tissue and
at the whole heart level. We introduce a six-variable model obtained
by a reformulation of the Priebe-Beuckelmann model of a single human
ventricular cell. The reformulated model is 4.9 times faster for
numerical computations and it is more stable than the original model.
It retains the action potential shape at various frequencies, restitution
of action potential duration, and restitution of conduction velocity.
We were able to reproduce the main properties of epicardial, endocardial,
and M cells by modifying selected ionic currents. We performed a
simulation study of spiral wave behavior in a two-dimensional sheet
of human ventricular tissue and showed that spiral waves have a frequency
of 3.3 Hz and a linear core of approximately 50-mm diameter that
rotates with an average frequency of 0.62 rad/s. Simulation results
agreed with experimental data. In conclusion, the proposed model
is suitable for efficient and accurate studies of reentrant phenomena
in human ventricular tissue.
%0 Journal Article
%1 Bern_2002_H2296
%A Bernus, O.
%A Wilders, R.
%A Zemlin, C. W.
%A Verschelde, H.
%A Panfilov, A. V.
%D 2002
%J Am. J. Physiol. Heart Circ. Physiol.
%K 12003840 Action Animals, Arrhythmia, Biological, Channel Channels, Computer Conductivity, Electric Electrophysiology, Endocardium, Gating, Gov't, Heart Humans, Ion Mathematics, Membrane Models, Non-U.S. Pericardium, Potassium Potentials, Research Simulation, Sodium Support, Ventricles,
%N 6
%P H2296-308
%R 10.1152/ajpheart.00731.2001
%T A computationally efficient electrophysiological model of human ventricular
cells.
%U http://dx.doi.org/10.1152/ajpheart.00731.2001
%V 282
%X Recent experimental and theoretical results have stressed the importance
of modeling studies of reentrant arrhythmias in cardiac tissue and
at the whole heart level. We introduce a six-variable model obtained
by a reformulation of the Priebe-Beuckelmann model of a single human
ventricular cell. The reformulated model is 4.9 times faster for
numerical computations and it is more stable than the original model.
It retains the action potential shape at various frequencies, restitution
of action potential duration, and restitution of conduction velocity.
We were able to reproduce the main properties of epicardial, endocardial,
and M cells by modifying selected ionic currents. We performed a
simulation study of spiral wave behavior in a two-dimensional sheet
of human ventricular tissue and showed that spiral waves have a frequency
of 3.3 Hz and a linear core of approximately 50-mm diameter that
rotates with an average frequency of 0.62 rad/s. Simulation results
agreed with experimental data. In conclusion, the proposed model
is suitable for efficient and accurate studies of reentrant phenomena
in human ventricular tissue.
@article{Bern_2002_H2296,
abstract = {Recent experimental and theoretical results have stressed the importance
of modeling studies of reentrant arrhythmias in cardiac tissue and
at the whole heart level. We introduce a six-variable model obtained
by a reformulation of the Priebe-Beuckelmann model of a single human
ventricular cell. The reformulated model is 4.9 times faster for
numerical computations and it is more stable than the original model.
It retains the action potential shape at various frequencies, restitution
of action potential duration, and restitution of conduction velocity.
We were able to reproduce the main properties of epicardial, endocardial,
and M cells by modifying selected ionic currents. We performed a
simulation study of spiral wave behavior in a two-dimensional sheet
of human ventricular tissue and showed that spiral waves have a frequency
of 3.3 Hz and a linear core of approximately 50-mm diameter that
rotates with an average frequency of 0.62 rad/s. Simulation results
agreed with experimental data. In conclusion, the proposed model
is suitable for efficient and accurate studies of reentrant phenomena
in human ventricular tissue.},
added-at = {2009-06-03T11:20:58.000+0200},
author = {Bernus, O. and Wilders, R. and Zemlin, C. W. and Verschelde, H. and Panfilov, A. V.},
biburl = {https://www.bibsonomy.org/bibtex/209957bea0eda2f2fbd39c44b6b02972a/hake},
description = {The whole bibliography file I use.},
doi = {10.1152/ajpheart.00731.2001},
file = {Bern_2002_H2296.pdf:Bern_2002_H2296.pdf:PDF},
interhash = {2bc124bdc035dd4d9cd07561fa12ba1c},
intrahash = {09957bea0eda2f2fbd39c44b6b02972a},
journal = {Am. J. Physiol. Heart Circ. Physiol.},
key = 14,
keywords = {12003840 Action Animals, Arrhythmia, Biological, Channel Channels, Computer Conductivity, Electric Electrophysiology, Endocardium, Gating, Gov't, Heart Humans, Ion Mathematics, Membrane Models, Non-U.S. Pericardium, Potassium Potentials, Research Simulation, Sodium Support, Ventricles,},
month = Jun,
number = 6,
pages = {H2296-308},
timestamp = {2009-06-03T11:21:02.000+0200},
title = {A computationally efficient electrophysiological model of human ventricular
cells.},
url = {http://dx.doi.org/10.1152/ajpheart.00731.2001},
volume = 282,
year = 2002
}