Analysis of the ST-segment in terms of principal components: application on multichannel magnetocardiographic recordings

BG Schless Department of Cardiology, University of Ulm, D-89081 Ulm, GermanyCorrespondence[email protected]

H-P Müller Division for Biosignals and Imaging Technologies, Central Institute for Biomedical Engineering, University of Ulm, D-89069 Ulm, Germany

M DeMelis Division for Biosignals and Imaging Technologies, Central Institute for Biomedical Engineering, University of Ulm, D-89069 Ulm, Germany

A Pasquarelli Division for Biosignals and Imaging Technologies, Central Institute for Biomedical Engineering, University of Ulm, D-89069 Ulm, Germany

SN Erné Division for Biosignals and Imaging Technologies, Central Institute for Biomedical Engineering, University of Ulm, D-89069 Ulm, Germany

V Hombach Department of Cardiology, University of Ulm, D-89081 Ulm, Germany

Abstract

Parameterization of the ST-segment is used as a tool for risk stratification for patients to suffer from ventricular tachycardia. This parameterization is performed in terms of Principal Component Analysis (PCA) applied on multichannel magnetocardiographic (MCG) recordings. 55-channel MCG was recorded from 14 normal persons, 10 patients with CHD, 14 patients with MI, and six patients with VT. We found a significantly (p < 0.05) lower PCA-score in patients with MI compared to normals. The lowest PCA-score was found in VT patients. Significant differences can be found between VT patients and normals and also between VT patients and CHD patients.

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Analysis of the ST-segment in terms of principal components: application on multichannel magnetocardiographic recordings

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Analysis of the ST-segment in terms of principal components: application on multichannel magnetocardiographic recordings

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