Alvarado Serrano, Carlos (Universitat Politècnica de Catalunya, 2001-11-19)
Alvarado Serrano, Carlos; Arregui, J.; Ramos Castro, Juan José; Pallàs Areny, Ramon (2005)
Open AccessIn this study, we present detection algorithms of characteristic points of the QRS and T waves based on the continuous wavelet transform (CWT) with splines. This technique can handle any integer scale and the analysis is ...
Do ventricular repolarization interval ratios depend on heart rate and should they be rate-corrected? Alvarado Serrano, Carlos; Ramos Castro, Juan José; Pallàs Areny, Ramon (Institute of Electrical and Electronics Engineers, 2003-09)
Open AccessQT interval decreases with increasing heart rate (HR), hence to define normal values of QT interval for different heart rates requires the application of a QT interval rate correction formula. However, the influence of HR ...
Alvarado Serrano, Carlos; Ramos Castro, Juan José; Pallàs Areny, Ramon (Elsevier, 2006-05)
Open AccessWe propose novel indices of ventricular repolarization intervals, the JTp/JT, Tpe/JTp and Tpe/JT ratios. These indices have been compared with the duration of the ventricular repolarization intervals and other ratios in ...
Spatial variability of ventricular activity intervals in normal subjects and old myocardial infarction patients Alvarado Serrano, Carlos; Ramos Castro, Juan José; Pallàs Areny, Ramon (Institute of Electrical and Electronics Engineers, 2004-06)
Open AccessIncreased dispersion of QT interval in the 12-lead ECG have been proposed as risk factor of ventricular arrhythmias in post myocardial infarction (post-MI) patients, but its sensitivity and specifity is low for diagnosis ...