Magnetocardiographic localization of accessory conduction pathway in patients suffering from WPW syndrome

The authors´ have studied the group of 12 patients suffering from the Wolf-Parkinson-White (WPW) syndrome. The noninvasive magnetocardiographic (MCG) mapping data were used to find a functional localization of accessory conduction pathway (AP) by using the current dipole source model in different volume conductor models. The best reference interval for magnetic data baseline corrections as well as the onset of AP were determined automatically by means of averaged standard deviation of magnetic recordings. The stability of MCG inverse solutions has been studied. For all cases the calculated AP spatial coordinates were compared to corresponding results obtained by the invasive electrophysiological study (EPS).