Search results for " Finite-element analysis."

showing 2 items of 2 documents

Transcatheter Heart Valve Implantation in Bicuspid Patients with Self-Expanding Device

2021

Bicuspid aortic valve (BAV) patients are conventionally not treated by transcathether aortic valve implantation (TAVI) because of anatomic constraint with unfavorable outcome. Patient-specific numerical simulation of TAVI in BAV may predict important clinical insights to assess the conformability of the transcathether heart valves (THV) implanted on the aortic root of members of this challenging patient population. We aimed to develop a computational approach and virtually simulate TAVI in a group of n.6 stenotic BAV patients using the self-expanding Evolut Pro THV. Specifically, the structural mechanics were evaluated by a finite-element model to estimate the deformed THV configuration in …

Aortic valveTechnologymedicine.medical_specialtybicuspid aortic valveQH301-705.5medicine.medical_treatment0206 medical engineeringDiastoleBioengineering02 engineering and technology030204 cardiovascular system & hematologyBicuspid aortic valve Finite-element analysis Fluid–solid interaction Transcatheter aortic valve implantationArticle03 medical and health sciences0302 clinical medicineBicuspid aortic valveInternal medicinemedicine.arterymedicineCardiac skeletonHeart valveBiology (General)transcatheter aortic valve implantationAortabusiness.industryTSettore ING-IND/34 - Bioingegneria IndustrialeStentmedicine.diseasefluid–solid interaction020601 biomedical engineeringAortic wallmedicine.anatomical_structurefinite-element analysiscardiovascular systemCardiologybusinessBioengineering
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Modeling Right Ventricle Failure After Continuous Flow Left Ventricular Assist Device: A Biventricular Finite-Element and Lumped-Parameter Analysis

2017

The risk of right ventricle (RV) failure remains a major contraindication for continuous-flow left ventricular assist device (CF-LVAD) implantation in patients with heart failure. It is therefore critical to identify the patients who will benefit from early intervention to avoid adverse outcomes. We sought to advance the computational modeling description of the mechanisms underlying RV failure in LVAD-supported patients. RV failure was studied by computational modeling of hemodynamic and cardiac mechanics using lumped-parameter and biventricular finite element (FE) analysis. Findings were validated by comparison of bi-dimensional speckle-tracking echocardiographic strain assessment of the …

MaleCardiac CatheterizationCardiac outputVentricular Dysfunction Rightmedicine.medical_treatmentHemodynamicsSpeckle tracking echocardiography02 engineering and technology030204 cardiovascular system & hematologySeverity of Illness IndexRight ventricular failure Left ventricular assist device Speckle-tracking echocardiography Lumped-parameter Finite-element analysis.Ventricular Function LeftVentricular Dysfunction Left0302 clinical medicineRisk FactorsMedicineModels CardiovascularMiddle AgedTreatment Outcomemedicine.anatomical_structureEchocardiographyCardiologyFemaleCardiology and Cardiovascular MedicineAdultmedicine.medical_specialtyFinite Element Analysis0206 medical engineeringBiomedical EngineeringProsthesis DesignProsthesis Implantation03 medical and health sciencesInternal medicineSettore ING-IND/12 - Misure Meccaniche E TermicheHumansComputer SimulationInterventricular septumContraindicationRetrospective StudiesHeart Failurebusiness.industryHemodynamicsmedicine.disease020601 biomedical engineeringVentricleVentricular assist deviceHeart failureVentricular Function RightHeart-Assist DevicesbusinessCardiovascular Engineering and Technology
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