Cardiac modelling gallery
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These images and movies show electrical
activity in models of cardiac tissue. In each case the excitability of
the tissue is modelled using the simplified models developed by Flavio Fenton.
Please do not reproduce or use these images without permission.
2D models
In 2D sheets, re-entrant waves form rotating spiral waves. These can be
either stable (left) or unstable (right)
Click the links below to download movies (WMV format) showing examples
of stable and unstable spiral waves.
- Stable spiral small
(344 kB) or large
(1,936 kB).
- Unstable spiral small
(218 kB) or large
(1,436 kB).
3D models
In 3D, re-entrant wave form rotating scroll waves. As in 2D, these can
be stable or unstable. The image below shows re-entry in a 3D slab of
tissue, which represents a section taken from the heart wall. A scroll
wave rotates around a filament of phase singularity, which is shown in
the image below as a purple tube.
Click the links below to download movies showing examples
of unstable re-entry and filaments in 3D slabs of anisotropic cardiac
tissue.
- Unstable re-entry small
(WMV, 226 kB) or large
( MPG 2.96 MB).
- Corresponding filaments small
(WMV 166 kB) or large
(MPG 2.5 MB).
Whole ventricle simulations offer insights into the behaviour of
re-entrant waves and filaments in realistic cardiac geometry. The movie
below shows re-entry and filaments in an anatomically detailed model of
rabbit ventricles that was kindly made available by colleagues at USCD.
3
panel movie showing epicardial potential, isosurface view, and
filaments (MPG 1.97 MB).
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last updated 12-may-2006 by Richard Clayton