Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs

The purpose of this study was to characterize time-frequency behavior using the Continuous Wavelet Transform (CWT) and Fast Fourier Transform (FFT) to analyze ventricular and arterial pressure signals from anesthetized mongrel dogs. Both ventricular and arterial pressure pulsations were recorded usi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	JIMÉNEZ,RAÚL F, TORRES,PATRICIO, GÜNTHER,BRUNO, MORGADO,ENRIQUE, JIMÉNEZ,CLAUDIA A
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2004
Materias:	wavelet transform Fourier transform time-frequency-amplitude ventricular and arterial pressures
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300008
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0716-97602004000300008
record_format	dspace
spelling	oai:scielo:S0716-976020040003000082005-03-14Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogsJIMÉNEZ,RAÚL FTORRES,PATRICIOGÜNTHER,BRUNOMORGADO,ENRIQUEJIMÉNEZ,CLAUDIA A wavelet transform Fourier transform time-frequency-amplitude ventricular and arterial pressures The purpose of this study was to characterize time-frequency behavior using the Continuous Wavelet Transform (CWT) and Fast Fourier Transform (FFT) to analyze ventricular and arterial pressure signals from anesthetized mongrel dogs. Both ventricular and arterial pressure pulsations were recorded using catheter-tip manometers and the CWT was applied to these signals to obtain module coefficients, associated contours, and the 3-D representation of these modules. FFT was applied to obtain the Fourier spectrum. The mathematical analysis of the cardiovascular pressure pulsations permitted the identification of the evolution of the frequency components for the aortic and pulmonary valve functions as well as the intra-ventricular and respiratory influences on the cardiovascular dynamics. The CWT is a very sensitive and reliable procedure for determining the three-dimensional (time-frequency-amplitude) of the oscillatory phenomena during each cardiac cycle, providing more, although complementary, information than the spectral analysis obtained with the FFT. Thanks to the FFT, exact values in Hz could be found for the different events produced in each cycle, and thus the information provided by CWT could be related to the information provided by FFT. The combination of both mathematical methodologies permitted identification of each component of the analyzed signals. The 3D representation allowed an easy comparison of the relative importance of the complex magnitudes in frequency for the different components of the pulsatile waves.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.37 n.3 20042004-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300008en10.4067/S0716-97602004000300008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	wavelet transform Fourier transform time-frequency-amplitude ventricular and arterial pressures
spellingShingle	wavelet transform Fourier transform time-frequency-amplitude ventricular and arterial pressures JIMÉNEZ,RAÚL F TORRES,PATRICIO GÜNTHER,BRUNO MORGADO,ENRIQUE JIMÉNEZ,CLAUDIA A Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
description	The purpose of this study was to characterize time-frequency behavior using the Continuous Wavelet Transform (CWT) and Fast Fourier Transform (FFT) to analyze ventricular and arterial pressure signals from anesthetized mongrel dogs. Both ventricular and arterial pressure pulsations were recorded using catheter-tip manometers and the CWT was applied to these signals to obtain module coefficients, associated contours, and the 3-D representation of these modules. FFT was applied to obtain the Fourier spectrum. The mathematical analysis of the cardiovascular pressure pulsations permitted the identification of the evolution of the frequency components for the aortic and pulmonary valve functions as well as the intra-ventricular and respiratory influences on the cardiovascular dynamics. The CWT is a very sensitive and reliable procedure for determining the three-dimensional (time-frequency-amplitude) of the oscillatory phenomena during each cardiac cycle, providing more, although complementary, information than the spectral analysis obtained with the FFT. Thanks to the FFT, exact values in Hz could be found for the different events produced in each cycle, and thus the information provided by CWT could be related to the information provided by FFT. The combination of both mathematical methodologies permitted identification of each component of the analyzed signals. The 3D representation allowed an easy comparison of the relative importance of the complex magnitudes in frequency for the different components of the pulsatile waves.
author	JIMÉNEZ,RAÚL F TORRES,PATRICIO GÜNTHER,BRUNO MORGADO,ENRIQUE JIMÉNEZ,CLAUDIA A
author_facet	JIMÉNEZ,RAÚL F TORRES,PATRICIO GÜNTHER,BRUNO MORGADO,ENRIQUE JIMÉNEZ,CLAUDIA A
author_sort	JIMÉNEZ,RAÚL F
title	Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
title_short	Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
title_full	Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
title_fullStr	Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
title_full_unstemmed	Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
title_sort	wavelet and fourier analysis of ventricular and main arteries pulsations in anesthetized dogs
publisher	Sociedad de Biología de Chile
publishDate	2004
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300008
work_keys_str_mv	AT jimenezraulf waveletandfourieranalysisofventricularandmainarteriespulsationsinanesthetizeddogs AT torrespatricio waveletandfourieranalysisofventricularandmainarteriespulsationsinanesthetizeddogs AT guntherbruno waveletandfourieranalysisofventricularandmainarteriespulsationsinanesthetizeddogs AT morgadoenrique waveletandfourieranalysisofventricularandmainarteriespulsationsinanesthetizeddogs AT jimenezclaudiaa waveletandfourieranalysisofventricularandmainarteriespulsationsinanesthetizeddogs
_version_	1718441371489009664

Wavelet and Fourier analysis of ventricular and main arteries pulsations in anesthetized dogs

Ejemplares similares