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Título del libro: Pan American Health Care Exchanges, Pahce 2010
Título del capítulo: Computation of systolic / diastolic flow indices for coronary bypass surgery

Autores UNAM:
JULIO SOLANO GONZALEZ; DEMETRIO FABIAN GARCIA NOCETTI; IVONNE GRISEL SANCHEZ CERVANTES;
Autores externos:

Idioma:
Inglés
Año de publicación:
2010
Palabras clave:

Blood flow; Carotid artery; Continuous Wavelet Transform; Coronary bypass; Doppler; Doppler blood flow signals; ECG signals; Experimental protocols; Flow indices; Mean frequency; Real signals; T waves; Blood; Electrocardiography; Electrochromic devices; Health care; Hemodynamics; Surgery; Wavelet transforms


Resumen:

This paper describes a method to calculate the systolic/diastolic indices of the blood flow that pass through an artery or vein under test. The method analyzes the Doppler and the ECG signals, associating and synchronising them in order to calculate the indices. The maximum of the R and T waves, are calculated using a continuous wavelet transform. Simultaneously, the pseudo-instantaneous mean frequency is calculated from the Doppler blood flow signal. A projection of the R and T wave mark over the pseudo-instantaneous Doppler mean frequency curve is used for computing the indices. The paper shows preliminary results from real signals obtained from a carotid artery, an humeral artery and an aortic artery, demonstrating the effectiveness of the method. Further results will be obtained through a formal experimental protocol during coronary bypass surgery. © 2010 IEEE.


Entidades citadas de la UNAM: