Analysis of the ST-segment in terms of principal components: application on multichannel magnetocardiographic recordings |
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| Authors: | BG Schless H-P Müller M DeMelis A Pasquarelli SN Erné V Hombach |
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| Institution: | 1. Department of Cardiology, University of Ulm, D-89081 Ulm, Germanyhans-peter.mueller@zibmt.uni-ulm.de;3. Division for Biosignals and Imaging Technologies, Central Institute for Biomedical Engineering, University of Ulm, D-89069 Ulm, Germany;4. Department of Cardiology, University of Ulm, D-89081 Ulm, Germany |
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| 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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| Keywords: | Pacemakers implantable power sources |
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