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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/315848
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- Title
- Two-dimensional optimization for a stent for an aneurysm
- Related
- Journal of medical devices, Vol. 4, Issue 2, (2010), p.021003-1-021003-7
- DOI
- 10.1115/1.4001861
- Publisher
- American Society of Mechanical Engineers
- Date
- 2010
- Author/Creator
- Srinivas, K
- Author/Creator
- Townsend, S
- Author/Creator
- Lee, C. J
- Author/Creator
- Nakayama, T
- Author/Creator
- Ohta, M
- Author/Creator
- Obayashi, S
- Author/Creator
- Yamaguchi, T
- Description
- This work attempts to optimize stents that are implanted at the neck of coronary or cerebral aneurysms to effect a flow diversion. A two-dimensional version of the stent, which is a series of struts and gaps placed at the neck, is considered as the first step. Optimization is carried out based on the principles of exploration of design space using reductions in velocity and vorticity in the aneurysm dome as the objective functions. Latin hypercube sampling first develops 30–60 samples of a strut-gap arrangement. Flow past an aneurysm with each of these samples is computed using the commercial software FLUENT and the objective functions evaluated. This is followed by a Kriging procedure that identifies the nondominated solutions to the system, which are the optimized candidates. Three different cases of stents with rectangular or circular struts are considered. It is found that placing struts in the proximal region of the neck gives the best flow diversion.
- Description
- 7 page(s)
- Subject Keyword
- aneurysm
- Subject Keyword
- stents
- Subject Keyword
- flow diversion
- Subject Keyword
- strut position
- Subject Keyword
- optimization
- Resource Type
- journal article
- Organisation
- Macquarie University. Australian School of Advanced Medicine
- Identifier
- http://hdl.handle.net/1959.14/315848
- Identifier
- mq:34651
- Identifier
- ISSN:1932-619X
- Identifier
- mq-rm-2013007163
- Identifier
- mq_res-20141111-105037
- Language
- eng
- Reviewed
Macquarie University ResearchOnline
