Exploració per tema "Hemodynamics"

Ara es mostren els items 1-20 de 21

    • Acute fetal cardiovascular adaptation to artificial placenta in sheep model 

      Sanchez Martinez, Sergio; Randanne, Paula C.; Hawkins Villarreal, Ameth; Rezaei, Kambiz; Fucho, Raquel; Bobillo Pérez, Sara; Bonet Carné, Elisenda; Illa Armengol, Miriam; Eixarch Roca, Elisenda; Bijnens, Bart; Crispi, Fatima; Gratacós Solsona, Eduard (John Wiley & sons, 2023-08)
      Article
      Accés restringit per política de l'editorial
      Objective: To describe the acute cardiovascular adaptation of the fetus after connection to an artificial placenta (AP) in a sheep model, using ultrasound and invasive and non-invasive hemodynamic assessment. Methods: ...

    • 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 ...

    • 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 ...

    • Computational study of the hemodynamics in single ventricle physiology: an approach to patient-specific surgical planning 

      Vila Pérez, Jordi (Universitat Politècnica de Catalunya, 2019-10-24)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Georgia Institute of Technology
      Patient-specific surgical planning for single ventricle patients represents a crucial stage within their clinical life. Computational-aided diagnoses and evaluations, by means of the use of imaging techniques, designing ...

    • 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 ...

    • Coupling Biot and Navier-Stokes problems for fluid-poroelastic structure interaction 

      Badia, Santiago; Quaini, Annalisa; Quarteroni, Alfio (2008-02-05)
      Article
      Accés obert
      The interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier-Stokes equations for the fluid with the Biot system for the structure. The finite element approximation of this problem ...

    • Early detection of acute transmural myocardial ischemia by the phasic systolic-diastolic changes of local tissue electrical impedance 

      Jorge, Esther; Amoros Figueras, Gerard; García Sánchez, Tomás; Bragós Bardia, Ramon; Rosell Ferrer, Francisco Javier; Cinca Cuscullola, Juan Maria (2016-02-01)
      Article
      Accés obert
      Myocardial electrical impedance is influenced by the mechanical activity of the heart. Therefore, the ischemia-induced mechanical dysfunction may cause specific changes in the systolic-diastolic pattern of myocardial ...

    • 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 ...

    • Estudio paramétrico de tensiones hemodinámicas en modelos de aneurismas de aorta abdominal 

      Soudah Prieto, Eduardo; Vilalta, G.; Bordone, M.; Nieto, F.; Vilalta, J.A.; Vaquero, C. (Universitat Politècnica de Catalunya. CIMNE, 2015)
      Article
      Accés obert
      El objetivo del presente estudio es determinar qué influencia tienen los parámetros geométricos con las tensiones hemodinámicas en aneurismas abdominales aórticos. Para ello los autores han creado varios modelos geométricos ...

    • 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 ...

    • Impact of the mechanical interface on BCG signals obtained from electronic weighing scales 

      Casanella Alonso, Ramón; Gómez Clapers, Joan; Hernández Urrea, Marc; Pallàs-Areny, Ramon (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work analyzes the reproducibility of the BCG obtained from different weighing scales. First, the natural frequency of three commercial bathroom scales has been characterized by an impulse excitation test. Second, the ...

    • 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 ...

    • 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 ...

    • 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 ...