Exploració per tema "Cardiologia"

Ara es mostren els items 41-54 de 54

    • Multivariate classification of Brugada syndrome patients based on the autonomic response during sleep, exercise and head-up tilt testing 

      Calvo González, Mireia; Le Rolle, Virginie; Romero Pérez, Daniel; Béhar, Nathalie; Gomis Román, Pedro; Mabo, Philippe; Hernández Rodríguez, Alfredo Ignacio (2019)
      Text en actes de congrés
      Accés obert
      Multivariate Classification of Brugada Syndrome Patients Based on the Autonomic Response During Sleep, Exercise and Head-up Tilt Testing Several autonomic markers were estimated overnight and during exercise and head-up ...

    • Realización de una base de datos de señales fisiológicas y estudio del efecto de la música en la variabilidad del ritmo cardíaco 

      Argelagós Palau, Ariadna (Universitat Politècnica de Catalunya, 2014-06-18)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] The main purpose of this project is the making of a biosignal database –two ECG leads, breathing and seismocardiogram–, acquired at a very high sample frequency in order to study the possible modulatory effects ...

    • Redesign of the arm support for hemodynamic procedures 

      Pavón Ortega, Marta (Universitat Politècnica de Catalunya, 2022-07-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Hospital del Mar
      The following study develops a redesign of a medical apparatus. More specifically, the redesign of an arm support that is used in non-invasive cardiovascular procedures also called hemodynamic procedures. The project is ...

    • Reference ranges of left ventricular hemodynamic forces in healthy adults: a speckle-tracking echocardiographic study 

      Capuano, Francesco (Multidisciplinary Digital Publishing Institute (MDPI), 2021-12-17)
      Article
      Accés obert
      Background: The normal limits of left ventricular (LV) hemodynamic forces (HDFs) are not exactly known. The aim of this study was to explore the full spectrum of HDF parameters in healthy subjects and determine their ...

    • Refined multiscale entropy analysis of heart period and QT interval variabilities in long QT syndrome type-1 patients 

      Bari, V.; Valencia, Jose Fernando; Vallverdú Ferrer, Montserrat; Girardengo, G.; Bassani, T.; Marchi, A.; Calvillo, L.; Caminal Magrans, Pere; Cerutti, Sergio; Brink, P.A.; Crotti, L.; Schwartz, P.J.; Porta, A. (2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This study assesses complexity of cardiovascular control in patients affected by type-1 variant of long QT(LQT1) syndrome. Complexity was assessed by refined multiscale entropy of heart period (HP) and QT interval ...

    • Regularity of cardiac rhythm as a marker of sleepiness in sleep disordered breathing 

      Guaita, Marc; Melia, Umberto; Vallverdú Ferrer, Montserrat; Caminal Magrans, Pere; Vilaseca, Lluis; Montserrat, Josep Maria; Gaig, Carlos; Salamero, Manuel; Santamaria, Joan (2015-04-10)
      Article
      Accés obert

    • RF monitoring of commercial vascular stents with dipole scattering resonances 

      Arauz Garofalo, Gianluca; López Domínguez, Víctor; Hernández Ferras, Joan Manel; Rodríguez Leor, Oriol; Bayés Genis, Antoni; Rius Casals, Juan Manuel; O'Callaghan Castellà, Juan Manuel; García Santiago, Antoni; Tejada Palacios, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We have compared measurements and simulations of the microwave forward scattering of several commercial coronary stents. We immerse the stents in water to replicate the permittivity of biological tissues and find that their ...

    • Spatiotemporal control of cardiac alternans 

      Echebarría Domínguez, Blas; Karma, Alain (Institute of Physics (IOP), 2002)
      Article
      Accés restringit per política de l'editorial
      Electrical alternans are believed to be linked to the onset of life-threatening ventricular arrhythmias and sudden cardiac death. Recent studies have shown that alternans can be suppressed temporally by dynamic feedback ...

    • Stochastic coupled map model of subcellular calcium cycling in cardiac cells 

      Romero Castañeda, Luis; Álvarez Lacalle, Enrique; Shiferaw, Yohannes (Institute of Physics (IOP), 2019-02-01)
      Article
      Accés obert
      In this study, we analyze a nonlinear map model of intracellular calcium (Ca) and voltage in cardiac cells. In this model, Ca release from the sarcoplasmic reticulum (SR) occurs at spatially distributed dyadic junctions ...

    • Study of phase estimation methods to analyse cardiorespiratory synchronization in OSA patients 

      Solà Soler, Jordi; Giraldo Giraldo, Beatriz; Fiz Fernández, José Antonio; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Comunicació de congrés
      Accés restringit per política de l'editorial

    • Symbolic dynamics to discriminate healthy and ischemic dilated cardiomyopathy 

      Valencia, Jose Fernando; Vallverdú Ferrer, Montserrat; Ribero, Isidre; Voss, Andreas; Bayes de Luna, Antonio; Porta, Alberto; Caminal Magrans, Pere (2014-12-29)
      Article
      Accés obert

    • Towards the standardization of ballistocardiography systems for J-peak timing measurement 

      Gómez Clapers, Joan; Serra Rocamora, Albert; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2014-09-16)
      Article
      Accés obert
      There is a growing interest in accurately measuring the timing of the J peak of the ballistocardiogram (BCG) in order to obtain cardiovascular function markers non-invasively, especially in modern home healthcare applications. ...

    • Two-variable nullcline analysis of ionic general equilibrium predicts calcium homeostasis in ventricular myocytes 

      Conesa Ortega, David; Echebarría Domínguez, Blas; Peñaranda Ayllón, Angelina; Rodríguez Cantalapiedra, Inma; Shiferaw, Yohannes; Álvarez Lacalle, Enrique (2020-06-01)
      Article de premsa
      Accés obert
      Ventricular contraction is roughly proportional to the amount of calcium released from the Sarcoplasmic Reticulum (SR) during systole. While it is rather straightforward to measure calcium levels and contractibility under ...

    • Using high-resolution voltage maps to predict “redo” in the treatment of atrial fibrillation (AF) 

      Bragard, Jean; Moriones, Leire; Echebarría Domínguez, Blas; Ravassa, Susana; Ibero, Javier; García Bolao, Ignacio (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      The aim of this work is to use biomarkers extracted from high-resolution voltage maps of atrial fibrillation (AF) patients in order to make predictions about future “redo” procedures. We collected maps of the left atrium ...