Analysis of the QRS complex in three-dimensional magnetocardiogram by use of a wavelet transform based band pass filters

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Liu, Mai^a | Uchikawa, Yoshinori^{a; *}

Affiliations: [a] Graduate School of Science and Engineering, Tokyo Denki University, Ishizaka, Hatoyamacho, Hikigun, Saitama 350-0394, Japan

Correspondence: [*] Corresponding author: Yoshinori Uchikawa, Tel.: +81 492 96 2911; Fax: +81 492 96 6413; E-mail: [email protected]

Abstract: A wavelet transform based band pass filters were used to analyze the QRS complex in a three-dimensional magnetocardiogram (3-D MCG) recorded from normal subjects and a patient with anterior myocardial infarction (MI). The high frequency components of the QRS complex related to the ventricular late fields (LF) were detected from the patient with anterior MI at different scale. The weak magnetic signals were quantified by calculating root-mean-square (RMS) value at different scale. In order to discuss the activities of the heart between the normal subject and the patient with anterior MI, the spatial energy distribution (SED) of the QRS complex was also evaluated by displaying isoenergy contour maps at different scale.

DOI: 10.3233/JAE-2002-404

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 14, no. 1-4, pp. 369-376, 2002