The Frequency Changes in Electrograms during Ischemia Experiments – Analysis by Matching Pursuit Decomposition
Autoři | |
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Rok publikování | 2015 |
Druh | Článek ve sborníku |
Konference | Computing in Cardiology 2015 |
Fakulta / Pracoviště MU | |
Citace | |
Obor | Fyziologie |
Klíčová slova | frequency components; algorithms Matching Pursuit; Wigner-Ville Distribution |
Popis | The aim of this study was to analyse frequency components in electrograms (EGs) recorded from surface of isolated guinea pig hearts perfused according to Langendorff. Time-frequency analysis is based on algorithms Matching Pursuit and Wigner-Ville Distribution and its combination showing the energy density of the signal. The presented algorithms were tested on a set of electrograms, recorded during ischemia followed by reperfusion. The frequency components changed markedly during global ischemia experiments. |
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