Publications related to Cardiac electrophysiology

A matrix DEIM technique for model reduction of nonlinear parametrized problems in cardiac mechanics

When relying on Newton iterations to solve nonlinear problems in the context of Reduced Basis (RB) methods, the assembling of the RB arrays during the online stage depends on the dimension of the underlying high-fidelity approximation. This is more of an i ...

Elsevier Science Sa2017

Hierarchical Cardiac-Rhythm Classification Based on Electrocardiogram Morphology

David Atienza Alonso, Amir Aminifar, Elisabetta De Giovanni, Dionisije Sopic

Atrial Fibrillation (AF) is a type of cardiac arrhythmia that significantly increases the risk of stroke and heart failure. In general, in the case of patients affected by AF, their electrocardiogram (ECG) shows a typical pattern of irregular RR intervals ...

2017

An asymptotic formula for boundary potential perturbations in a semilinear elliptic equation related to cardiac electrophysiology

Andrea Manzoni

In this paper, we provide a representation formula for boundary voltage perturbations caused by internal conductivity inhomogeneities of low volume fraction in a simplified monodomain model describing the electrical activity of the heart. We derive such a ...

World Scientific Publishing2016

Metal artefact reduction in computed tomography images by a fourth-order total variation flow

Alfio Quarteroni, Elena Faggiano

Permanent metallic implants, such as dental fillings and cardiac devices, generate streaks-like artefacts in computed tomography (CT) images. In this article, we propose a strategy to perform metal artefact reduction (MAR) that relies on the total variatio ...

Taylor & Francis Ltd2016

Electrically shielded dielectric elastomer actuators for the study of the mechanical perturbation of cardiomyocytes

Herbert Shea, Matthias Imboden, Samuel Rosset, Alexandre Poulin, Etienne de Coulon

We present the development of a mechanically active bioreactor. Using dielectric elastomer actuators (DEA), we are able to mechanically perturb cell cultures in a controlled environment. With tailored pre-strain and compliant electrodes, it is possible to ...

2016

MATHICSE Technical Report : Integrated Heart – Coupling multiscale and multiphysics models for the simulation of the cardiac function

Alfio Quarteroni, Ricardo Esteban Ruiz Baier, Toni Mikael Lassila, Simone Rossi

Mathematical modelling of the human heart and its function can expand our understanding of various cardiac diseases, which remain the most common cause of death in the developed world. Like other physiological systems, the heart can be understood as a comp ...

MATHICSE2016

An Adaptive Organization Index to Characterize Atrial Fibrillation using Wrist-Type Photoplethysmographic Signals

Jean-Marc Vesin, Mathieu Lemay, Célestin Leupi, Sibylle Fallet, Etienne Pruvot, Philippe Renevey

The performance of photoplethysmography (PPG)- based wearable monitors to diagnose atrial fibrillation (AF) remains unknown to date. This study aims at assessing the performance of new indices quantifying the level of organization in PPG signals to diagnos ...

2016

Biochemical and biophysical approaches to study the structure and function of the chloride channel (ClC) family of proteins

Henning Paul-Julius Stahlberg

The chloride channel (ClC) protein family comprises both chloride (Cl-) channels and chloride/proton (Cl/H+) antiporters. In prokaryotes and eukaryotes, these proteins mediate the movement of Cl- ions across the membrane. In eukaryotes, ClC proteins play a ...

Elsevier BV2016

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Cardiac electrophysiology

A matrix DEIM technique for model reduction of nonlinear parametrized problems in cardiac mechanics

Hierarchical Cardiac-Rhythm Classification Based on Electrocardiogram Morphology

An asymptotic formula for boundary potential perturbations in a semilinear elliptic equation related to cardiac electrophysiology

Multiphysics Computational Modeling in C-Heart

Metal artefact reduction in computed tomography images by a fourth-order total variation flow

Electrically shielded dielectric elastomer actuators for the study of the mechanical perturbation of cardiomyocytes

MATHICSE Technical Report : Integrated Heart – Coupling multiscale and multiphysics models for the simulation of the cardiac function

An Adaptive Organization Index to Characterize Atrial Fibrillation using Wrist-Type Photoplethysmographic Signals

Cardiac Niche Influences the Direct Reprogramming of Canine Fibroblasts into Cardiomyocyte-Like Cells

Biochemical and biophysical approaches to study the structure and function of the chloride channel (ClC) family of proteins

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An asymptotic formula for boundary potential perturbations in a semilinear elliptic equation related to cardiac electrophysiology

Cardiac Niche Influences the Direct Reprogramming of Canine Fibroblasts into Cardiomyocyte-Like Cells

A matrix DEIM technique for model reduction of nonlinear parametrized problems in cardiac mechanics

Multiphysics Computational Modeling in C-Heart

MATHICSE Technical Report : Integrated Heart – Coupling multiscale and multiphysics models for the simulation of the cardiac function

Metal artefact reduction in computed tomography images by a fourth-order total variation flow

Electrically shielded dielectric elastomer actuators for the study of the mechanical perturbation of cardiomyocytes

An Adaptive Organization Index to Characterize Atrial Fibrillation using Wrist-Type Photoplethysmographic Signals

Biochemical and biophysical approaches to study the structure and function of the chloride channel (ClC) family of proteins

Hierarchical Cardiac-Rhythm Classification Based on Electrocardiogram Morphology