IAM   02674
INSTITUTO ARGENTINO DE MATEMATICA ALBERTO CALDERON
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Ventricular Repolarization Dispersion during Ischemia Course Measured by Temporal and Spatial Electrocardiographic Parameters
Autor/es:
P.D. ARINI, FH BAGLIVO, J.P. MARTINEZ, P. LAGUNA
Lugar:
Bologna, ITALY
Reunión:
Congreso; XXXV International Conference on Computers in Cardiology; 2008
Institución organizadora:
IEEE Computer Society
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.