磁心动图定位与建模。

Magnetocardiographic localisation and modelling.

作者信息

Nenonen J, Forsman K, Katila T, Leiniö M, Montonen J, Horacek B M, Purcell C, Stroink G

机构信息

Helsinki University of Technology, Department of Technical Physics, Espoo, Finland.

出版信息

Clin Phys Physiol Meas. 1991;12 Suppl A:11-4. doi: 10.1088/0143-0815/12/a/002.

DOI:10.1088/0143-0815/12/a/002

PMID:1778043

Abstract

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.

摘要

在我们的磁心动图（MCG）定位研究中，应用了两种建模方法：（a）在一般多极展开中用偶极矩和四极矩对源进行建模，并使用均匀、半无限体积导体；（b）在均匀、形状逼真的躯干中使用单个电流偶极源。这两种方法都已成功应用于定位患有预激综合征患者的室性早搏兴奋部位。此外，我们还参与了心室电激活传播模型的开发。该模型纳入了心肌纤维的各向异性导电特性和螺旋排列。