Exploració per tema "Hemodinàmica"

Ara es mostren els items 1-20 de 21

    • A computational fluid dynamics study on hemodynamics for different locations of the distal anastomosis of a bypass nearby a collateral vessel in the femoropopliteal area 

      Rivera Amores, Juan José; van der Graaf, G.B.; Escudero, J.R.; Bellmunt, S.; van de Vosse, F. (John Wiley & Sons, Ltd, 2014-06-24)
      Article
      Accés restringit per política de l'editorial
      Revascularization of the femoropopliteal sector is often performed by the placement of a bypass. In this paper, we have studied the effects of hemodynamics on patency of the bypass for different positions of the distal ...

    • A reduced-order model based on the coupled 1D-3D finite element simulations for an efficient analysis of hemodynamics problems 

      Soudah Prieto, Eduardo; Rossi, Riccardo; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2014-05)
      Article
      Accés obert
      A reduced-order model for an efficient analysis of cardiovascular hemodynamics problems using multiscale approach is presented in this work. Starting from a patient-specific computational mesh obtained by medical imaging ...

    • Artery in Microgravity (AIM): Assembly, integration, and testing for a student payload for the ISS 

      García Mozos, Luis; Saroya, Devonjit; Roelvink, Yannick; Santos D'Amore, Naël dos; Gabetti, Stefano; Galván Lobo, Jorge; Lobo, Catarina; Joshi, Mrunmayi; Penedo, Guilherme; Rodríguez Encinas, Jorge Alberto; Torta, Elena; Lee, Seungah; Laulan-Souilhac, Baptiste; Mouchel, Roman; Lustro, Sacha; Butin, Alexis; Campos, Mário Gabriel; Passoni, Laura; Avallone, Luigi; Alex, Abin (Universitat Politècnica de Catalunya, 2022-04-29)
      Comunicació de congrés
      Accés obert
      The Artery in Microgravity (AIM) project was the first experiment to be selected for the “Orbit Your Thesis!” programme of the European Space Agency Academy. It is a 2U cube experiment that will be operated in the International ...

    • Build a 4D MRI blood-flow velocity atlas 

      Feng, Hongping (Universitat Politècnica de Catalunya, 2019-07-02)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Technische Universiteit Delft
      Cardiovascular disease (CVD) are the global number one cause of death. The current diagnosis of CVD is mainly based on functions and morphology. We have built a statistical vector field model based on 4D flow MRI, by ...

    • Cálculo de parámetros hemodinámicos para el estudio de patologías cardiovasculares 

      Alemany Bartomeu, Jordi (Universitat Politècnica de Catalunya, 2018-06-27)
      Treball Final de Grau
      Accés obert
      Cálculo de parámetros hemodinámicos para el estudio de patologías cardiovasculares

    • CFD study of carotid artery haemodynamic flows with experimental validation 

      García Peña, Jose Antonio (Universitat Politècnica de Catalunya, 2023-01-31)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
      The behavior of the veins and arteries under some potentially life-threatening situations has been the object of study for a long time. However, these studies have been mostly carried out experimentally, usually conditioned ...

    • Concurrent measurement of cerebral hemodynamics and electroencephalography during transcranial direct current stimulation 

      Giovannella, Martina; Ibañez, David; Gregori-Pla, Clara; Kacprzak, Michal; Mitjà, Guillem; Ruffini, Giulio; Durduran, Turgut (SPIE, 2018-01-25)
      Article
      Accés obert
      Transcranial direct current stimulation (tDCS) is currently being used for research and treatment of some neurological and neuropsychiatric disorders, as well as for improvement of cognitive functions. In order to better ...

    • Conductance heterogeneities induced by multistability in the dynamics of coupled cardiac gap junctions 

      Bragard, Jean; Witt, Annette; Laroze, David; Hawks, Claudia; Elorza Barbajero, Jorge; Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas (2021-07-01)
      Article
      Accés obert
      In this paper, we study the propagation of the cardiac action potential in a one-dimensional fiber, where cells are electrically coupled through gap junctions (GJs). We consider gap junctional gate dynamics that depend on ...

    • Effect of dysmorphic plantar arch on venous hemodynamics of the lower limb 

      Tsimba, Laure; Rastel, Didier; Dechandon, Emilie; Vincent, Patrick; Micholet, Céline; Chaigneau, Cyril; Avril, Stéphane; Aguirre Font, Miquel (SAGE publishing, 2023-07)
      Article
      Accés obert
      Background: The role of the plantar venous pump (PVP) on venous return is evident but the effects of the foot morphology have never been characterized properly. Method: 52 healthy volunteers—26 with normal plantar arch ...

    • How does obstructive sleep apnea alter cerebral hemodynamics? 

      Gregori Pla, Clara; Zirak, Peyman; Cotta, Gianluca; Bramon Mora, Pau; Blanco Núñez, Igor Diego; Serra Mochales, Isabel; Mola, Anna; Fortuna Gutiérrez, Ana; Solà Soler, Jordi; Giraldo Giraldo, Beatriz; Durduran, Turgut; Mayos, Mercedes (Oxford University Press, 2023-08-01)
      Article
      Accés obert
      Study Objectives We aimed to characterize the cerebral hemodynamic response to obstructive sleep apnea/hypopnea events, and evaluate their association to polysomnographic parameters. The characterization of the cerebral ...

    • Hybrid diffuse optics for monitoring of tissue hemodynamics with applications in oncology 

      Farzam, Parisa (Universitat Politècnica de Catalunya, 2014-10-14)
      Tesi
      Accés obert
      Noninvasive measurement of hemodynamics at the microvascular level may have a great impact on oncology in clinics for diagnosis, therapy planning and monitoring, and, in preclinical studies. To this end, diffuse optics is ...

    • Mechanical Response of the Endothelial Glycocalyx to Pulsatile Flow 

      Perdigó Oliveras, Arnau (Universitat Politècnica de Catalunya / Imperial College London, 2011)
      Projecte/Treball Final de Carrera
      Accés obert
      The endothelial glycocalyx is a thin layer lining the internal wall of all blood vessels. It is in the arteries wall where cholesterol and other fatty materials can accumulate eventually obstructing the blood flow and ...

    • Mejora del diagnóstico y de la hemodinámica en la revascularización carotídea : aplicación de la dinámica de fluidos computacional mediante el OpenFOAM® y otras herramientas de libre distribución 

      Arias Araluce, Fausto Arturo (Universitat Politècnica de Catalunya, 2017-05-19)
      Tesi
      Accés obert
      Stroke is a major cause of death and disability in Spain and in the Western world. It is often caused by an accumulation of atherosclerotic plaques on the walls of carotid arteries. Carotid revascularization may be the ...

    • Modelado y simulación matemática del sistema cardiovascular 

      Macedo Domínguez, Leonor (Universitat Politècnica de Catalunya, 2019-07-03)
      Treball Final de Grau
      Accés obert
      El propósito de este proyecto es desarrollar una herramienta numérica basada en la resolución de las ecuaciones unidimensionales del flujo sanguíneo, capaz de predecir las características hemodinámicas generales del sistema ...

    • Modelización computacional cardiaca 

      Bragard, Jean; Camara Rey, Oscar; Echebarría Domínguez, Blas; Pueyo, Esther; Soudah Prieto, Eduardo; Vázquez, Mariano (Elsevier, 2020-08-01)
      Article
      Accés obert
      Las enfermedades cardiovasculares tienen en la actualidad un gran impacto social y económico y constituyen una de las principales causas de mortalidad y morbilidad. Los modelos computacionales personalizados del corazón ...

    • New laser speckle methods for in vivo blood flow imaging and monitoring 

      Valdés Escobar, Claudia Patricia (Universitat Politècnica de Catalunya, 2014-12-15)
      Tesi
      Accés obert
      Realitzat a/amb:   Aix-Marseille Université
      Blood flow and its regulation, as well as hemodynamics in general, are important for the health of tissues and hence the measurement of these quantities has many applications in research and clinical environments. Various ...

    • 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 ...

    • Right ventricular afterload in repaired D-TGA is associated with inefficient flow patterns, rather than stenosis alone 

      Capuano, Francesco (2021-11-02)
      Article
      Accés obert
      Treatment of D- transposition of great arteries (DTGA) involves the Arterial Switch Operation (ASO), which can create PA branch stenosis (PABS) and alter PA blood fow energetics. This altered PA fow may contribute to ...

    • Statistical shape modeling reveals the link between right ventricular shape, hemodynamic force, and myocardial function in patients with repaired tetralogy of Fallot 

      Kollar, Sarah; Balaras, Elias; Olivieri, Laura Jean; Loke, Yue Hin; Capuano, Francesco (2022-09-01)
      Article
      Accés restringit per política de l'editorial
      Patients with repaired tetralogy of Fallot (rTOF) can develop chronic pulmonary insufficiency (PI) with right ventricular (RV) dilation, progressive RV dysfunction, and decreased exercise capacity. Pulmonary valve replacement ...