Journal article

Spatiotemporal correlation analyses: a new procedure for standardisation of DC magnetocardiograms

Matthias Goernig, Christian Tute, Mario Liehr, Stephan Lau, Jens Haueisen, Hans R Figulla, Uwe Leder

Biomedical Engineering / Biomedizinische Technik | WALTER DE GRUYTER & CO | Published : 2006

Abstract

There is a lack of standard methods for the analysis of magnetocardiograms (MCGs). MCG signals have a shape similar to the ECG (P wave, QRS complex, T wave). High-quality multichannel recordings can indicate even slight disturbances of de- and repolarisation. The purpose of our study was to apply a new approach in the analysis of signal-averaged DC-MCGs. DC-MCGs (31-channel) were recorded in 182 subjects: 110 patients after myocardial infarction and 72 controls. Spatiotemporal correlation analysis of the QRS complex and T wave patterns throughout the entire heart cycle was used to analyse homogeneity of de- and repolarisation. These plots were compared to standard ECG analyses (electrical ax..

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