Browsing by Subject "Electrocardiography"

Now showing items 1-20 of 50

  • Advanced Spatial Temporal Regularization for Inverse Electrocardiography (ECG) 

    González Navarro, Paula (Universitat Politècnica de Catalunya, 2014-07-23)
    Bachelor thesis
    Open Access
    Covenantee:  Northeastern University
    [ANGLÈS] Heart diseases are the first cause of Mortality in the world. The percentage of the deceased who dies because of a cardiac infarction rises every year. Therefore, an early identification of typical signs may be ...

  • Análisis automático de señales de Holter: adquisición, preprocesado y clasificación mediante Machine Learning 

    Cordero Rama, Jose Alejandro (Universitat Politècnica de Catalunya, 2012-09-27)
    Master thesis (pre-Bologna period)
    Restricted access - confidentiality agreement

  • Analysis of heart rate variability indices after selective acute atrial ischemia in humans 

    Gomis Román, Pedro; Álvarez García, Jesus; Caminal Magrans, Pere; Cinca, Juan (Computing in Cardiology, 2018)
    Conference lecture
    Open Access
    The purpose of this work is to analyze the effect of selective atrial coronary artery occlusion on heart rate variability (HRV). Twelve-hour, Holter recording were studied in 109 patients undergoing elective percutaneous ...

  • A novel algorithm for fast BCG cycle extraction in ambulatory scenarios 

    Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs Areny, Ramon (2016)
    Conference lecture
    Restricted access - publisher's policy
    A novel algorithm JDet for ballistocardiogram (BCG) cycle extraction is presented that is intended for the fast generation of ensemble averages in ambulatory scenarios where the ECG signal is not available. First, the ...

  • A novel robust index to assess beat-to-beat variability in heart rate time-series analysis 

    García González, Miguel Ángel; Pallàs Areny, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-06-30)
    Article
    Open Access
    A new index is proposed to estimate the variance of the differentiated heart rate (RR) time series from its truncated histogram. The index is more robust to artifacts than the standard deviation of the differentiated RR ...

  • Aplicació del mètode "Feature Selective Validation" al reconeixement de patrons 

    Ventosa Llopart, Josep Oriol (Universitat Politècnica de Catalunya, 2013-05-23)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Pattern recognition is a discipline with a long history. Despite this, some weaknesses can be found in existing methods. To get an idea of which can be these weaknesses, a brief introduction to pattern recognition ...

  • Assessment of electrocardiograms with pretraining and shallow networks 

    Ribas Ripoll, Vicent; Wojdel, Anna; Ramos, Pablo; Romero Merino, Enrique; Brugada Terradellas, Josep (Computing in Cardiology, 2014)
    Conference report
    Open Access
    Objective: Clinical Decision Support Systems normally resort to annotated signals for the automatic assessment of ECG signals. In this paper we put forward a new method for the assessment of normal/abnormal heart function ...

  • Banda inalàmbrica que mesura l'ectrecardiograma i la respiració 

    Muñoz Gayet, Joan (Universitat Politècnica de Catalunya, 2013-12-10)
    Bachelor thesis
    Open Access
    [ANGLÈS] The objective of this project is to create a device able to monitor at the same time the respiration and the electrocardiography (ECG) of a patient in ambulatory situations. From these signals, several data can ...

  • Base de datos de señales respiratorias de sujetos sanos 

    Montilla García, David (Universitat Politècnica de Catalunya, 2009-01-12)
    Master thesis (pre-Bologna period)
    Open Access
    Actualment l'estudi de la respiració en subjectes sans per a la determinació d'un patró respiratori es un tema poc estudiat i la publicació d'informació es escassa. En aquest projecte final de carrera s'ha realitzat un ...

  • Bioelectrical Signal Processing in Cardiology: inverse solution mapping on epicardial and endocardial potentials 

    Ratés i Borràs, Àngels (Universitat Politècnica de Catalunya, 2015-07-21)
    Bachelor thesis
    Open Access
    Covenantee:  Dalhousie University
    Inverse electrocardiography is aimed at reconstructing the heart electrical activity and its corresponding spread throughout the heart from non-invasive body surface measurements obtained through the Electrocardiogram (ECG) ...

  • Calcium alternans produced by increased sarcoplasmic reticulum refractoriness 

    Rodríguez Cantalapiedra, Inma; Lugo, Carlos; Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas (IEEE Computer Society Publications, 2011)
    Conference report
    Restricted access - publisher's policy
    Despite the important role of electro-mechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. In this paper we want to study alternans that can be associated with alternations in ...

  • Cardiac interference reduction in diaphragmatic MMG signals during a maintained inspiratory pressure test 

    Sarlabous Uranga, Leonardo; Torres Cebrián, Abel; Fiz Fernández, José Antonio; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    A recursive least square (RLS) adaptive filtering algorithm for reduction of cardiac interference in diaphragmatic mecanomyographic (MMGdi) signals is addressed in this paper. MMGdi signals were acquired with a capacitive ...

  • Characterization and classification of patients with different levels of cardiac death risk by using Poincaré plot analysis 

    Rodriguez Benitez, Javier; Voss, Andreas; Caminal Magrans, Pere; Bayés Genis, Antoni; Giraldo Giraldo, Beatriz (2017)
    Conference lecture
    Open Access
    Cardiac death risk is still a big problem by an important part of the population, especially in elderly patients. In this study, we propose to characterize and analyze the cardiovascular and cardiorespiratory systems using ...

  • Characterization and Handling of Disturbances within Electrocardiographic Recordings of Different Origin 

    Ribas Mercau, Nicolás Agustín (Universitat Politècnica de Catalunya / Technische Universität Dresden. Fakultät Elektrotechnik und Informationstechnik, 2014-03-31)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Technische Universität Dresden
    [ANGLÈS] A study of a method for automatic assessment of the quality of electrocardiogram (ECG) signals has been motivated by emerging applications such as the recording of the signals and transmission to mobile phones in ...

  • Comparación de correctores automáticos de artefactos en series RR 

    Benítez Herrera, Adolfo (Universitat Politècnica de Catalunya, 2013-02-08)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] This End of Degree Project (EDP) analyzes three commercial software which correct Hear Rate Variability (HRV) RR time series. The analysis was performed by entering the RR time series in each program with an ...

  • Desarrollo y evaluación de diferentes métodos de detección de apnea a partir de la señal electrocardiográfica (ECG) 

    Manzanera Navarro, Vladimir (Universitat Politècnica de Catalunya, 2009-06-30)
    Master thesis (pre-Bologna period)
    Open Access
    El desarrollo y la mejora de distintos métodos de detección del síndrome de la apnea obstructiva del sueño (SAOS) a partir de únicamente la señal electrocardiográfica (ECG) es la base del proyecto realizado. Hasta ahora ...

  • Design and implementation of a wireless system for ECG acquisition 

    Gómez Clapers, Joan (Universitat Politècnica de Catalunya, 2010-02-19)
    Master thesis
    Restricted access - author's decision

  • Direct pulse transit time measurement from an electronic weighing scale 

    Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs Areny, Ramon (2016)
    Conference report
    Restricted access - publisher's policy
    A novel method to measure Pulse Transit Time (PTT) from the force sensors of a modified electronic weighing scale is presented. The method relies on the relation between PTT and the interval between I and J waves of the ...

  • Diseño, desarrollo y test de un prototipo de pulsera para adquirir el electrocardiograma y la onda de pulso 

    Barea Cañizares, Alberto (Universitat Politècnica de Catalunya, 2016)
    Master thesis (pre-Bologna period)
    Open Access
    The project is focused on the design of a wristband and the associated signal conditioning circuitry that enables to measure simultaneously the pulse arrival and the QRS complexes of the user. The prototype consists of a ...

  • Diseño y desarrollo de un sistema multiparamétrico para la evaluación del estrés 

    Fernández Miguel, Ana María; Lozano Moncayo, Marco Antonio (Universitat Politècnica de Catalunya, 2009-01-12)
    Master thesis (pre-Bologna period)
    Open Access
    L’objectiu d’aquest projecte ha estat el desenvolupament d’una eina de treball per al metge especialitzat en medicina esportiva, concretament per al estudi de l’estrès físic. La premissa del desenvolupament ha estat crear ...