Modeling of Hemodynamics in a Vascular Bioprosthesis
| Autor: | Yu. Kudravceva, K. U. Klyshnikov, Yu. I. Shokin, P. S. Onishchenko, Evgeny A. Ovcharenko, Yu. N. Zakharov, V. G. Borisov |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
business.industry Applied Mathematics 0206 medical engineering Biomedical Engineering Hemodynamics 02 engineering and technology 030204 cardiovascular system & hematology 020601 biomedical engineering 03 medical and health sciences 0302 clinical medicine Internal medicine Cardiology medicine business |
| Zdroj: | Mathematical Biology and Bioinformatics. 16:15-28 |
| ISSN: | 1994-6538 |
| DOI: | 10.17537/2021.16.15 |
| Popis: | The study of blood flow in vascular bioprostheses is a rather complicated task, since the shape of the inner surface of the bioprosthesis is variable, due to xenogenic origin. Because of this, vortex zones can occur inside the vascular bioprosthesis. In addition, the flow structure may contain sections where the flow velocity is abnormally high. It is all the more difficult to assess the nature of the course when using this vascular bioprosthesis as a shunt. A numerical comparison of the blood flow in a bioprosthesis connected to the main vascular bed using the «end-to-end» and «end-to-side» methods (bypass) taking into account the heart rate and blood pressure was performed. It is shown that, due to the nonlinearity of the initial bioprosthesis geometry, the implantation method affects the blood flow. Because of this, vortex zones arise and, with certain combinations of parameters, the effects of «separation» of vortices. |
| Databáze: | OpenAIRE |
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