Prats Boluda, Gema; Garcia Casado, Francisco Javier; Martínez De Juan, José Luís; Ye Lin, Yiyao(Elsevier, 2011-05)
[EN] Although the surface electroenterogram (EEnG) is a weak signal contaminated by strong physiological interference, such as ECG and respiration, abdominal surface recordings of the EEnG could provide a non-invasive ...
The standard electrocardiogram (ECG) is the most common non-invasive way to study atrial fibrillation (AF). In this respect, previous works have shown that the surface lead V 1 reflects mainly the dominant atrial frequency ...
Rodrigo Bort, Miguel; Guillem Sánchez, María Salud; Climent, Andreu M.; Pedrón Torrecilla, Jorge; Liberos Mascarell, Alejandro; Millet Roig, José; Fernandez-Aviles, Francisco; Atienza, Felipe; Berenfeld, Omer(Elsevier, 2014-09)
Background: Ablation is an effective therapy in atrial fibrillation (AF) patients in which an electrical driver can be identified.
Objective: The aim of this study is to present and discuss a novel and strictly non-invasive ...
Alcaraz, Raúl; Sandberg, Frida; Sornmo, Leif; Rieta Ibañez, José Joaquín(Institute of Electrical and Electronics Engineers (IEEE), 2011-05)
The problem of classifying short atrial fibrillatory segments in ambulatory ECG recordings as being either paroxysmal or persistent is addressed by investigating a robust approach to signal characterization. The method ...
Atrial fibrillation, which is the most common
cardiac arrhythmia, is typically classified into four clinical
subtypes: paroxysmal, persistent, long-standing persistent
and permanent. The ability to distinguish between
them ...
Objective: There is an ongoing research effort devoted to characterize the signal regularity metrics approximate entropy (ApEn) and sample entropy (SampEn) in order to better interpret their results in the context of ...
Chapel, J. M.; Castillo, C.; Hernández, J.; Cipone, M.; Benedito, J. L.(Universitat Politècnica de València, 2017-12-28)
[EN] The aim of this study was to provide reference values for a single, popular breed of pet rabbit. Moreover, additional objectives were to determine whether sex, body position or age alter Netherland Dwarf rabbit ...
Martínez Gomar, José(Universitat Politècnica de València, 2013-02-19)
[ES] Varios grupos de investigación han propuesto distintos protocolos de registro electrocardiográfico de superficie no estándar para cuantificar de manera específica señales de Fibrilación Auricular (FA). Por lo tanto, ...
[EN] Surface Laplacian estimates via concentric ring electrodes (CREs) have proven to enhance spatial resolution compared to conventional disc electrodes, which is of great importance for P-wave analysis. In this study, ...
Introduction. Artifactual variations in the ST segment may lead to confusion with acute coronary syndromes. Objective. To evaluate
how the technical characteristics of the recording mode may distort the ST segment. Material ...
Dux-Santoy Hurtado, Lydia; Sebastián Aguilar, Rafael; Felix-Rodriguez, Jose; Ferrero De Loma-Osorio, José María; Saiz Rodríguez, Francisco Javier(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)
[EN] The use of antiarrhythmic drugs is common to treat heart rhythm disorders. Computational modeling and simulation are promising tools that could be used to investigate the effects of specific drugs on cardiac ...
[EN] Background: Ablation of drivers maintaining atrial fibrillation (AF) has been demonstrated as an effective therapy. Drivers in the form of rapidly activated atrial regions can be noninvasively localized to either left ...
The ChipCorder ® technology employs a non volatile analog recording technique based on EEPROM technology (i. e. although the signal is time-sampled, its analog voltage is stored in memory cells based on capacitors). This ...
Pedrón Torrecilla, Jorge(Universitat Politècnica de València, 2015-11-30)
[EN] The behavior of the heart is governed by electrical currents generated in the myocardium, and therefore, the study of the cardiac electrical activity is essential for the diagnosis of cardiac diseases.
The forward ...
Rodrigo Bort, Miguel(Universitat Politècnica de València, 2015-09-18)
[EN] Ablation is an effective therapy in atrial fibrillation (AF) patients in which an electrical driver can be identified. Several techniques for locating ablation targets have been proposed during the last years. The aim ...
Guillem Sánchez, María Salud; M. Climent, Andreu; Millet Roig, José; Berne, P; Ramos, R; Brugada, J; Brugada, R(Blackwell Publishing, 2016)
[EN] Abstract
INTRODUCTION:
The diagnosis of Brugada syndrome based on the ECG is hampered by the dynamic nature of its ECG manifestations. Brugada syndrome patients are only 25% likely to present a type 1 ECG. The ...
The complete understanding of the mechanisms leading to the initiation, maintenance and self-termination of atrial fibrillation (AF) still is an unsolved challenge for cardiac electrophysiology. Studies in which AF has ...
[EN] [Background] Phase mapping has become a broadly used technique to identify atrial reentrant circuits for ablative therapy guidance. This work studies the phase mapping process and how the signal nature and its filtering ...
[EN] While progress has been made in design optimization of concentric ring electrodes maximizing the accuracy of the surface Laplacian estimation, it was based exclusively on the negligible dimensions model of the electrode. ...
Cluitmans, Matthijs; Brooks, D.; MacLeod, Rob S.; Dossel, Olaf; Guillem Sánchez, María Salud; van Dam, P.; Svehlikova, Jana; He, Bin; Sapp, John; Wang, Liwei; Bear, Laura(Frontiers Media SA, 2018-09-20)
[EN] Electrocardiographic imaging (ECGI) reconstructs the electrical activity of the heart from a dense array of body-surface electrocardiograms and a patient-specific heart-torso geometry. Depending on how it is formulated, ...