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Listar por autor "Rieta Ibañez, José Joaquín"

Mostrando ítems 21-40 de 142

Application of the relative wavelet energy to heart rate independent detection of atrial fibrillation

García, Manuel; Ródenas García, Juan; Alcaraz, Raúl; Rieta, J J (Elsevier, 2016-07)

Background and Objectives: Atrial fibrillation (AF) is the most common sustained cardiac ar- rhythmia and a growing healthcare burden worldwide. It is often asymptomatic and may appear as episodes of very short duration; ...
Application of wavelet entropy to predict atrial fibrillation progression from the surface ECG

Alcaraz, Raúl; Rieta Ibañez, José Joaquín (Hindawi Publishing Corporation, 2012)

Atrial fibrillation (AF) is the most common supraventricular arrhythmia in clinical practice, thus, being the subject of intensive research both in medicine and engineering. Wavelet Entropy (WE) is a measure of the disorder ...
Applications of Signal Analysis to Atrial Fibrillation

Rieta Ibañez, José Joaquín; Alcaraz Martínez, Raúl (InTech, 2013-02-27)
Are Coronary Sinus Features Reflecting the Effect of Catheter Ablation of Atrial Fibrillation as P-waves Do?

Vraka, Aikaterini; Bertomeu-González, Vicente; Hornenro, Fernando; Langley, Philip; Alcaraz, Raúl; Rieta, J J (IEEE, 2021-11-19)

[EN] Atrial substrate alteration due to catheter ablation (CA) of atrial fibrillation (AF) is primarily assessed from P-waves. Nonetheless, how CA affects critical structures is ignored. The aim of the current study is to ...
Assessing the Stability of Complex Fractionated Atrial Electrograms for the Characterization of Atrial Substrate in Atrial Fibrillation

Finotti, Emanuela; Ciaccio, Edward J.; Garan, Hasan; Hornero, Fernando; Alcaraz, Raúl; Rieta, J J (IEEE, 2020-10-30)

[EN] Aimed at characterizing the atrial substrate in atrial fibrillation (AF), a wide number of indexes has been investigated on complex fractionated atrial electrograms (CFAEs). However, many times the assessment of CFAEs ...
Assessment of non-invasive time and frequency atrial fibrillation organization markers with unipolar atrial electrograms

Alcaraz, Raúl; Hornero, Fernando; Rieta, J J (IOP Publishing: Hybrid Open Access, 2011-01)

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 ...
Assisting Electrophysiological Substrate Quantification in Atrial Fibrillation Ablation

Vraka, Aikaterini; Hornero, Fernando; Osca, Joaquín; Faes, Luca; Alcaraz, Raúl; Rieta, J J (IEEE, 2019-11-23)

[EN] Catheter ablation (CA) is the most popular treatment of atrial fibrillation (AF) with good results in paroxysmal AF, while its efficiency is significantly reduced in persistent AF. With the equipment used for CA ...
Atrial Fibrillation Surgical Ablation Long-term Outcome Prediction Just with One Lead of the Preoperative Surface Electrocardiogram

García, Manuel; Escribano, Pilar; Ródenas, Juan; Martínez-Iniesta, Miguel; Hornero, Fernando; Rieta, J J; Alcaraz, Raúl (IEEE, 2020-10-30)

[EN] To revert atrial fibrillation (AF) in patients requiring concomitant open-heart surgery, surgical ablation (SA) is one of the most effective procedures. However, this intervention is as- sociated with major side ...
Blending Inverted Lectures and Laboratory Experiments to Improve Learning in an Introductory Course in Digital Systems

Alcaraz, Raúl; Martínez-Rodrigo, Arturo; Zangroniz, Roberto; Rieta, J J (Institute of Electrical and Electronics Engineers, 2020-08)
Cancelación de actividad ventricular en un ECG mediante redes neuronales

Jorda Jimenez, Miguel Alejandro (Universitat Politècnica de València, 2015-04-01)

Este trabajo ha consistido en la programación en Matlab de distintas RN's, su posterior entrenamiento con un conjunto de señales y targets obtenidos a partir de otros métodos populares entre la comunidad científica para ...
Catheter Ablation Outcome Prediction With Advanced Time-Frequency Features of the Fibrillatory Waves From Patients in Persistent Atrial Fibrillation

Escribano, Pilar; Ródenas, Juan; Arias, Miguel A.; Langley, Philip; Rieta, J J; Alcaraz, Raúl (IEEE, 2020-09-16)

[EN] Although catheter ablation (CA) is still the first-line treatment for persistent atrial fibrillation (AF) patients, its limited long-term success rate has motivated clinical interest in preoperative prediction on ...
Central tendency measure and wavelet transform combined in the non-invasive analysis of atrial fibrillation recordings

Alcaraz, Raúl; Rieta Ibañez, José Joaquín (BioMed Central, 2012-08-09)

Background Atrial fibrillation (AF) is the most common supraventricular arrhythmia in the clinical practice, being the subject of intensive research. Methods The present work introduces two different Wavelet Transform ...
Characterization and processing of atrial fibrillation episodes by convolutive blind source separation algorithms and nonlinear analysis of spectral features

Vayá Salort, Carlos (Universitat Politècnica de València, 2010-06-28)

Las arritmias supraventriculares, en particular la fibrilación auricular (FA), son las enfermedades cardíacas más comúnmente encontradas en la práctica clínica rutinaria. La prevalencia de la FA es inferior al 1\% en la ...
Characterization of the Substrate Modification in Patients Undergoing Catheter Ablation of Atrial Fibrillation

Vraka, Aikaterini (Universitat Politècnica de València, 2023-01-20)

[ES] La fibrilación auricular (FA) es la arritmia cardíaca más común. A pesar de la gran popularidad de la ablación con catéter (AC) como tratamiento principal, todavía hay margen de mejora. Aunque las venas pulmonares ...
Classification of paroxysmal and persistent atrial fibrillation in ambulatory ECG recordings

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 ...
Comparación de Redes Neuronales Preentrenadas para la Evaluación de la Calidad en Registros Electrocardiográficos

Huerta Herraiz, A.; Martínez Rodrigo, A.; Puchol Calderón, A.; Pachón Iglesias, M.I.; Rieta, J J; Alcaraz Martínez, R. (Sociedad Española de Ingeniería Biomédica, 2020-11-27)

[ES] Actualmente, es habitual el uso de las redes neuronales convolucionales para el analisis del registro electrocardiografico (ECG). Sin embargo, su capacidad para evaluar la calidad con la que se registra esta senal ...
Comparative Study of Convolutional Neural Networks for ECG Quality Assessment

Huerta, Alvaro; Martinez-Rodrigo, Arturo; Puchol, Alberto; Pachon, Marta, I; Rieta, J J; Alcaraz, Raul (IEEE, 2020-09-16)

[EN] In the last years, convolutional neural networks (CNNs) have become popular in ECG analysis, since they do not require pre-processing stages, nor specific pre-training. However, their ability for ECG quality assessment ...
Comparative Study of Methods for Cycle Length Estimation in Fractionated Electrograms of Atrial Fibrillation

Osorio, Diego; Vraka, Aikaterini; Moreno-Arribas, José; Bertomeu-González, Vicente; Alcaraz, Raúl; Rieta, J J (MDPI AG, 2022-10)

[EN] Atrial cycle length (CL) is an important feature for the analysis of electrogram (EGM) characteristics acquired during catheter ablation (CA) of atrial fibrillation (AF), the commonest cardiac arrhythmia. Nevertheless, ...
Comparison of Pre-Trained Deep Learning Algorithms for Quality Assessment of Electrocardiographic Recordings

Huerta, Álvaro; Martínez-Rodrigo, Arturo; Puchol, Alberto; Pachón, Marta I.; Alcaraz, Raúl; Rieta, J J (IEEE, 2020-10-30)

[EN] Convolutional neural networks (CNNs) have recently become popular for electrocardiogram (ECG) analysis. However, their ability for ECG quality assessment has still not been thoroughly assessed. This challenging topic, ...
Confiabilidad de las Ondas de Activación Local para Evaluar el Sustrato Auricular de Pacientes con Fibrilación Auricular Paroxística

Vraka, A.; Hornero Sos, F.; Bertomeu-González, V.; Osca Asensi, J.; Alcaraz Martínez, R.; Rieta, J J (Sociedad Española de Ingeniería Biomédica, 2020-11-27)

[ES] El análisis de electrogramas (EGMs) del seno coronario (SC) durante la ablación por catérer (AC) de fibrilación auricular (FA) es clave para la evaluación del sustrato auricular. No obstante, los canales del catéter ...