Browsing by Subject "Electrocardiography"

Now showing items 1-20 of 76

    • A 36 µW 1.1 mm2 reconfigurable analog front-end for cardiovascular and respiratory signals recording 

      Xu, Jiawei; Konijnenburg, Mario; Ha, Hyunsoo; van Wegberg, Roland; Song, Shuang; Blanco Almazán, María Dolores; Van Hoof, Chris; Van Helleputte, Nick (2018-04-06)
      Article
      Open Access
      This paper presents a 1.2 V 36 µW reconfigurable analog front-end (R-AFE) as a general-purpose low-cost IC for multiple-mode biomedical signals acquisition. The R-AFE efficiently reuses a reconfigurable preamplifier, a ...

    • 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 ...

    • Advanced Interfaces for the development of music-therapy in people with disabilities 

      Valenzuela Ramírez, Andrea (Universitat Politècnica de Catalunya, 2019-06-25)
      Bachelor thesis
      Restricted access - author's decision

    • 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 ...

    • 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 ...

    • Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing 

      Blanco Almazán, María Dolores; Groenendaal, Willemijn; Catthoor, Francky; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference lecture
      Open Access
      Bioimpedance is known for its linear relation with volume during normal breathing. For that reason, bioimpedance can be used as a noninvasive and comfortable technique for measuring respiration. The goal of this study is ...

    • Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing 

      Blanco Almazán, María Dolores; Groenendaal, Willemijn; Catthoor, Francky; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2019-10-07)
      Article
      Open Access
      Bioimpedance is known for its linear relation with volume during normal breathing. For that reason, bioimpedance can be used as a noninvasive and comfortable technique for measuring respiration. The goal of this study is ...

    • 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

    • Análisis de la coherencia entre la señal ECG y el flujo respiratorio en sujetos sanos 

      Lucena Pérez-Villegas, Pau (Universitat Politècnica de Catalunya, 2020-10-10)
      Bachelor thesis
      Restricted access - author's decision
      L'anàlisi de la coherència entre senyals biomèdics és una eina molt útil en l'àmbit mèdic per entendre la interacció entre els sistemes que representen. Aquest treball se centra en l'anàlisi de coherència entre la ...

    • 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 ...

    • Application of the entropy of approximation for the nonlinear characterizationin patients with Chagas disease 

      Vizcardo, Miguel; Ravelo, Antonio; Manrique, Miriam; Gomis Román, Pedro (2019)
      Conference report
      Open Access
      Chagas disease American trypanosomiasis is caused by a flagellated parasite: Trypanosoma cruzi, transmitted by an insect of the genus Triatoma and also by blood transfusions. In Latin America, the number of infected people ...

    • 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 ...

    • Caracterización de la señal respiratoria a partir del electrocardiograma en sujetos sanos 

      Jang, Junho (Universitat Politècnica de Catalunya, 2019-10-22)
      Bachelor thesis
      Open Access
      Aplicar técnicas de procesado de señales para extraer información de la señal ECG relacionada con el comportamiento del sistema respiratorio, aplicado a una base de datos de sujetos sanos.

    • 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 ...

    • Cardiotracker o com fer-se a casa un electrocardiograma 

      Diari El Llobregat (Comunicación MetroBCN SL, 2018-09-07)
      Contribution to periodical
      Open Access
      Aquest projecte, impulsat per l'Escola d'Enginyeria de Telecomunicació i Aeronàutica de Castelldels (EETAC) de la UPC, proposa obtenir indicadors cardiovasculars de forma còmoda i adaptada a la vida quotidiana.