Experiences in data analysis and modelling with a multichannel biomagnetic system.
Evaluation of MEG/MCG data, measured with the Siemens biomagnetic multichannel system KRENIKON, in patients with epilepsy, infarction, Wolff-Parkinson-White (WPW) syndrome or extra systoles are in good agreement with the results of different investigation techniques. The evaluations have been performed using an equivalent current dipole model within a sphere or a half-space with homogeneous conductivity. In cases where the current dipole model is not adequate, multiple dipoles or complete distributions of current sources have to be considered. Results from simulations and applications to in vivo data and the influence of geometries better adjusted to realistic geometries are discussed.
Graumann
R
R
Siemens AG, Medical Engineering Group, Erlangen, Germany.
Boemmel
F
F
Schneider
S
S
D001921:Brain / Q000502:physiology*; D006321:Heart / Q000502:physiology* / Q000503:physiopathology; D006331:Heart Diseases / Q000503:physiopathology*; D006334:Heart Function Tests / Q000295:instrumentation*; D006801:Humans; D008280:Magnetics; D015225:Magnetoencephalography / Q000295:instrumentation*; D008953:Models, Anatomic; D008955:Models, Cardiovascular