Time-frequency analysis of the endocavitarian signal in paroxysmal atrial fibrillation.
IEEE Trans Biomed Eng
; 59(10): 2838-44, 2012 Oct.
Article
en En
| MEDLINE
| ID: mdl-22875240
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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Banco de datos:
MEDLINE
Asunto principal:
Fibrilación Atrial
/
Procesamiento de Señales Asistido por Computador
/
Electrocardiografía
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Año:
2012
Tipo del documento:
Article