Magnetocardiographic localisation and modelling.
In our magnetocardiographic (MCG) localisation studies, two modelling approaches have been applied: (a) modelling the sources with dipole and quadrupole moments in a general multipole expansion and using a homogeneous, semi-infinite volume conductor, and (b) using a single current dipole source in a homogeneous, realistically shaped torso. Both approaches have been successfully applied in localising the premature ventricular excitation site in patients suffering from the Wolff-Parkinson-White syndrome. In addition, we have participated in developing a model of propagation of electrical activation in the ventricles. Anisotropic conductivity properties and spiral arrangement of myocardial fibres are included in the model.
Nenonen
J
J
Helsinki University of Technology, Department of Technical Physics, Espoo, Finland.
Forsman
K
K
Katila
T
T
Leiniö
M
M
Montonen
J
J
Horacek
B M
BM
Purcell
C
C
Stroink
G
G
D006334:Heart Function Tests; D006801:Humans; D008280:Magnetics; D008953:Models, Anatomic; D008955:Models, Cardiovascular