Effect of different stent configurations using Lattice Boltzmann method and particles image velocimetry on artery bifurcation aneurysm problem
| Autor: | Muhammad Najib Abdul Hamid, Aizat Abas, N. Hafizah Mokhtar, Soon Lay Teong, N. A. Razak |
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| Rok vydání: | 2017 |
| Předmět: |
Statistics and Probability
medicine.medical_treatment Lattice Boltzmann methods 030204 cardiovascular system & hematology General Biochemistry Genetics and Molecular Biology 03 medical and health sciences 0302 clinical medicine Aneurysm medicine Humans Computer Simulation cardiovascular diseases Thrombus Bifurcation Mathematics General Immunology and Microbiology Applied Mathematics Models Cardiovascular Stent Equipment Design General Medicine Velocimetry medicine.disease Blood Vessel Prosthesis medicine.anatomical_structure Particle image velocimetry Modeling and Simulation Stents Rheology General Agricultural and Biological Sciences Blood Flow Velocity 030217 neurology & neurosurgery Biomedical engineering Artery |
| Zdroj: | Journal of Theoretical Biology. 433:73-84 |
| ISSN: | 0022-5193 |
| Popis: | Proper design of stent for application at specific aneurysm effect arteries could help to reduce the issues with thrombosis and aneurysm. In this paper, four types of stent configuration namely half-Y (6 mm), half-Y (4 mm), cross-bar, and full-Y configuration will implanted on real 3D artery bifurcation aneurysm effected arteries. Comparisons were then conducted based on the flow patterns after stent placement using both LBM-based solver and PIV experimental findings. According to the data obtained from all 4 stent designs, the flow profiles and the computed velocity from both methods were in agreement with each other. Both methods found that half-Y (6 mm) stent configuration is by far the best configuration in reducing the blood velocity at the vicinity of the aneurysm sac. The analysis also show that the half-Y (6 mm) stent configuration recorded the highest percentage of velocity reduction and managed to substantially reduce the pressure at the bifurcation region. This high flow velocity reduction through the use of half-Y stent could consequently promote the formation of thrombus thereby reducing the risk of rupture in the aneurysm sac. |
| Databáze: | OpenAIRE |
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