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Numerical Modeling of Intraventricular Flow during Diastole after Implantation of BMHV
- Source :
- PLoS ONE, Vol 10, Iss 5, p e0126315 (2015), PLoS ONE
- Publication Year :
- 2015
- Publisher :
- Public Library of Science (PLoS), 2015.
-
Abstract
- This work presents a numerical simulation of intraventricular flow after the implantation of a bileaflet mechanical heart valve at the mitral position. The left ventricle was simplified conceptually as a truncated prolate spheroid and its motion was prescribed based on that of a healthy subject. The rigid leaflet rotation was driven by the transmitral flow and hence the leaflet dynamics were solved using fluid-structure interaction approach. The simulation results showed that the bileaflet mechanical heart valve at the mitral position behaved similarly to that at the aortic position. Sudden area expansion near the aortic root initiated a clockwise anterior vortex, and the continuous injection of flow through the orifice resulted in further growth of the anterior vortex during diastole, which dominated the intraventricular flow. This flow feature is beneficial to preserving the flow momentum and redirecting the blood flow towards the aortic valve. To the best of our knowledge, this is the first attempt to numerically model intraventricular flow with the mechanical heart valve incorporated at the mitral position using a fluid-structure interaction approach. This study facilitates future patient-specific studies.
- Subjects :
- Aortic valve
medicine.medical_specialty
Heart Ventricles
Science
Diastole
Internal medicine
Ventricular Pressure
medicine
Humans
Ventricular Function
Computer Simulation
cardiovascular diseases
Systole
Heart Valve Prosthesis Implantation
Physics
Multidisciplinary
Hemodynamics
Models, Cardiovascular
Cardiac Ventricle
Blood flow
medicine.anatomical_structure
Flow (mathematics)
Ventricle
Heart Valve Prosthesis
Cardiology
cardiovascular system
Medicine
Algorithms
Blood Flow Velocity
Body orifice
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 10
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....09d5c588738dc5832afa502576e7114f