Evento
Ventricular repolarization dispersion during ischemia course measured by temporal and spatial electrocardiographic parameters
Tipo del evento:
Conferencia
Nombre del evento:
XXXV International Conference on Computers in Cardiology
Fecha del evento:
14/09/2008
Institución Organizadora:
IEEE Computer Society;
Título del Libro:
Computers in Cardiology
Editorial:
IEEE Computer Society
ISBN:
978-1-4244-3706-1
Idioma:
Inglés
Clasificación temática:
Resumen
In this work we studied the evolution of increased ventricular repolarization dispersion (VRD) in the ECG during ischemia induced by Percutaneous Transluminal Coronary Angioplasty (PTCA). T-wave duration is measured by an automatic delineator and proposed as a index to quantify increased VRD. Moreover, spatial complexity of repolarization is measured by Singular Value Decomposition (SVD) related indexes. Results showed a statistically significant widening of T-wave peak-to-end during PTCA procedure in RCA and LAD occluded patients. Besides, a statistically significant dynamic change of the dipolar components was observed during PTCA in RCA, LAD and LCx occluded patients. On the other hand, the relative energy of non-dipolar components did not change during the time course of increased VRD evolution.
Palabras clave:
ECG SIGNAL PROCESSING
,
T WAVE
,
SVD
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Eventos de INST.ARG.DE MATEMATICAS "ALBERTO CALDERON"
Eventos de INST.ARG.DE MATEMATICAS "ALBERTO CALDERON"
Citación
Ventricular repolarization dispersion during ischemia course measured by temporal and spatial electrocardiographic parameters; XXXV International Conference on Computers in Cardiology; Bologna; Italia; 2008; 323-326
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