We apply the time-frequency analysis to the endocavitarian signal of patients suffering from paroxysmal atrial fibrillation. The time-frequency spectrum reveals the components of the endocavitarian signal. These components are located in the regions of the time-frequency domain that differ for in-rhythm and in-atrial fibrillation signals. By using experimental data, we perform a statistical study of these regions, and we obtain their average value. The difference in the shape of these regions is caused by the re-entry circuits that characterize atrial fibrillation. We propose a propagation model for atrial fibrillation based on the re-entry circuits, which explains the shape of the time-frequency spectrum.

Time-frequency analysis of the endocavitarian signal in paroxysmal atrial fibrillation / Pagana, Guido; Galleani, Lorenzo; Grossi, S.; RUO ROCH, Massimo; Pastore, Erica; Poggio, Mauro; Quaranta, G.. - In: IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING. - ISSN 0018-9294. - STAMPA. - 59:10(2012), pp. 2838-2844. [10.1109/TBME.2012.2211596]

Time-frequency analysis of the endocavitarian signal in paroxysmal atrial fibrillation

PAGANA, GUIDO;GALLEANI, Lorenzo;RUO ROCH, Massimo;PASTORE, ERICA;POGGIO, MAURO;
2012

Abstract

We apply the time-frequency analysis to the endocavitarian signal of patients suffering from paroxysmal atrial fibrillation. The time-frequency spectrum reveals the components of the endocavitarian signal. These components are located in the regions of the time-frequency domain that differ for in-rhythm and in-atrial fibrillation signals. By using experimental data, we perform a statistical study of these regions, and we obtain their average value. The difference in the shape of these regions is caused by the re-entry circuits that characterize atrial fibrillation. We propose a propagation model for atrial fibrillation based on the re-entry circuits, which explains the shape of the time-frequency spectrum.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2502246
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