Browsing NTNU Open by Author "Prot, Victorien Emile"
Now showing items 1-20 of 24
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3D patient-specific numerical modeling of the soft palate considering adhesion from the tongue
Liu, Hongliang; Prot, Victorien Emile; Skallerud, Bjørn Helge (Journal article; Peer reviewed, 2018)Collapse of the soft palate in the upper airway contributes to obstructive sleeping apnea (OSA). In this study, we investigate the influence of the adhesion from the tongue on the soft palate global response. This is ... -
Biomechanics of degenerative mitral valve leaflets: Mechanical behavior, collagen structure, and numerical simulations
Sadeghinia, Mohammad Javad (Doctoral theses at NTNU;2023:395, Doctoral thesis, 2023)Degenerative mitral valve disease impacts around 2% of the population and leads to mitral regurgitation because of valvular incompetence. Two distinct phenotypes of degenerative mitral valve disease are fibroelastic ... -
Biomechanics of mitral valve leaflets: Second harmonic generation microscopy, biaxial mechanical tests and tissue modeling
Sadeghinia, MohammadJavad; Skallerud, Bjørn Helge; Holzapfel, Gerhard; Prot, Victorien Emile (Peer reviewed; Journal article, 2022)Collagen fibers are the main load carrier in the mitral valve (MV) leaflets. Their orientation and dispersion are an important factor for the mechanical behavior. Most recent studies of collagen fibers in MVs lack either ... -
Bladder Cancer Cells Interaction with Lectin-Coated Surfaces under Static and Flow Conditions
Szydlak, Renata; Øvreeide, Ingrid Haga; Luty, Marcin; Zieliński, Tomasz; Prot, Victorien Emile; Zemła, Joanna; Stokke, Bjørn Torger; Lekka, Małgorzata (Peer reviewed; Journal article, 2023)Aberrant expression of glycans, i.e., oligosaccharide moiety covalently attached to proteins or lipids, is characteristic of various cancers, including urothelial ones. The binding of lectins to glycans is classified as ... -
Buckling initiation in layered hydrogels during transient swelling
Ilseng, Arne; Prot, Victorien Emile; Skallerud, Bjørn Helge; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2019)Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different origins, like mechanical forces, temperature changes, or, for ... -
Donnan Contribution and Specific Ion Effects in Swelling of Cationic Hydrogels are Additive: Combined High-Resolution Experiments and Finite Element Modeling
Zurzul, Natasa; Ilseng, Arne; Prot, Victorien Emile; Sveinsson, Hrafn Mar; Skallerud, Bjørn Helge; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2020)Finite element modeling applied to analyze experimentally determined hydrogel swelling data provides quantitative description of the hydrogel in the aqueous solutions with well-defined ionic content and environmental ... -
An Experiential Learning Opportunity in Norway: Computation for Bioengineering and Mechanical Engineering Students
Clarin, Julia; Vargas, Ana I.; Jennings, Turner; Salinas, Samuel D.; Amini, Reza; Tjiptowidjojo, Yustianto; Yelle, Benjamin; Jacobsen, Mojgan Y.; Eide, Trine; Udberg-Helle, Cecilie; Olsen, Torjer Andreas; Crossen, Jonathan; Prot, Victorien Emile; Skallerud, Bjørn Helge; Amini, Rouzbeh (Journal article; Peer reviewed, 2024)The global learning initiative at Northeastern University is focused on fostering intercultural communication skills. The Dialogue of Civilization (DOC) program serves as a mechanism to achieve such a goal by offering ... -
Finite element analysis of mitral valve annuloplasty in Barlow's disease
Aguilera, Hans Martin; Urheim, Stig; Persson, Robert; Haaverstad, Rune; Skallerud, Bjørn Helge; Prot, Victorien Emile (Peer reviewed; Journal article, 2022)Barlow’s Disease affects the entire mitral valve apparatus causing mitral regurgitation. Standard annuloplasty procedures lead to an average of 55% annular area reduction of the end diastolic pre-operative annular area in ... -
In silico analysis provides insights for patient-specific annuloplasty in Barlow's disease
Aguilera, Hans Martin Dahl; Persson, Robert; Haaverstad, Rune; Skallerud, Bjørn Helge; Prot, Victorien Emile; Urheim, Stig (Peer reviewed; Journal article, 2023)Objective To predict the required mitral annular area reduction in patients with Barlow's disease to obtain a predefined leaflet area index by a novel in silico modeling method. Methods Three-dimensional echocardiography ... -
Influence of Annular Dynamics and Material Behavior in Finite Element Analysis of Barlow’s Mitral Valve Disease
Aguilera, Hans Martin; Urheim, Stig; Skallerud, Bjørn Helge; Prot, Victorien Emile (Peer reviewed; Journal article, 2021)Barlow’s disease affects the entire mitral valve apparatus, by altering several of the fundamental mechanisms in the mitral valve which ensures unidirectional blood flow between the left atrium and the left ventricle. In ... -
Influence of the Dynamic Motion of the Atrial Wall on the Hemodynamics in the Human Left Atrium: A Computational Fluid Dynamics Study
Skjefstad, Vegard Slettahjell (Master thesis, 2020)Hjerte- og karsykdommer er den ledende dødsårsaken i Europa, der atrieflimmer (AF) er en av de viktigste årsakene, og utbredelsen forventes å øke de kommende årene. Etterspørselen etter bedre diagnostikk og behandling av ... -
Interrelation between swelling, mechanical constraints and reaction–diffusion processes in molecular responsive hydrogels
Parelius Jonasova, Eleonora; Stokke, Bjørn Torger; Prot, Victorien Emile (Journal article; Peer reviewed, 2022) -
Mechanical behavior and collagen structure of degenerative mitral valve leaflets and a finite element model of primary mitral regurgitation
Sadeghinia, Mohammadjavad; Aguilera, Hans Martin Dahl; Urheim, Stig; Persson, Robert; Ellensen, Vegard Skalstad; Haaverstad, Rune; Holzapfel, Gerhard; Skallerud, Bjørn Helge; Prot, Victorien Emile (Peer reviewed; Journal article, 2023)Degenerative mitral valve disease is the main cause of primary mitral regurgitation with two phenotypes: fibroelastic deficiency (FED) often with localized myxomatous degeneration and diffuse myxomatous degeneration or ... -
Mitral annular dynamics are influenced by left ventricular load and contractility in an acute animal model
Persson, Robert Matongo; Aguilera, Hans Martin Dahl; Kvitting, Jon Peder Escobar; Grong, Ketil; Prot, Victorien Emile; Salminen, Pirjo-Riitta; Svenheim, Bård; Leiknes, Anita; Stangeland, Lodve; Haaverstad, Rune; Urheim, Stig (Peer reviewed; Journal article, 2023)The purpose of this study was to investigate the effects of loading conditions and left ventricular (LV) contractility on mitral annular dynamics. In 10 anesthetized pigs, eight piezoelectric transducers were implanted ... -
Modelling and numerical analysis of the porcine and human mitral apparatus
Prot, Victorien Emile (Doktoravhandlinger ved NTNU, 1503-8181; 2008:249, Doctoral thesis, 2008) -
Numerical modelling and analysis of the interactions between the left ventricle and the mitral valve
Knutsen, Emil Damsgård (Master thesis, 2018)In order to develop treatments for various heart diseases, a finite element model of the left ventricle and mitral valve apparatus could be of help. The goal of this thesis was to develop a finite element model of the left ... -
On the determination of mechanical properties of aqueous microgels-towards high-throughput characterization
Øvreeide, Ingrid Haga; Szydlak, Renata; Luty, Marcin; Ahmed, Husnain; Prot, Victorien Emile; Skallerud, Bjørn Helge; Zemła, Joanna; Lekka, Małgorzata; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2021)Aqueous microgels are distinct entities of soft matter with mechanical signatures that can be different from their macroscopic counterparts due to confinement effects in the preparation, inherently made to consist of more ... -
Palatal implant surgery effectiveness in treatment of obstructive sleep apnea: a numerical method with 3D patient-specific geometries
Liu, Hongliang; Moxness, Mads Henrik Strand; Prot, Victorien Emile; Skallerud, Bjørn Helge (Journal article; Peer reviewed, 2018)Obstructive sleep apnea (OSA) affects a large percentage of the population and is increasingly recognized as a major global health problem. One surgical procedure for OSA is to implant polyethylene (PET) material into the ... -
A Perturbation Analysis Approach for Studying the Effect of Swelling Kinetics on Instabilities in Hydrogel Plates
Ilseng, Arne; Skallerud, Bjørn Helge; Stokke, Bjørn Torger; Prot, Victorien Emile (Journal article; Peer reviewed, 2021)The onset of surface instability during diffusion-driven swelling of hydrogels depends on the kinetics of the swelling process. Here, we outline a perturbation analysis framework using a finite difference approach for ... -
Plasma Treatment of PDMS for Microcontact Printing (μCP) of Lectins Decreases Silicone Transfer and Increases the Adhesion of Bladder Cancer Cells
Zemła, Joanna; Szydlak, Renata; Gajos, Katarzyna; Kozłowski, Łukasz; Zieliński, Tomasz; Luty, Marcin; Øvreeide, Ingrid Haga; Prot, Victorien Emile; Stokke, Bjørn Torger; Lekka, Małgorzata (Peer reviewed; Journal article, 2023)The present study investigates silicone transfer occurring during microcontact printing (μCP) of lectins with polydimethylsiloxane (PDMS) stamps and its impact on the adhesion of cells. Static adhesion assays and single-cell ...