Numerical simulation of blood flow in intracranial aneurysms treated by endovascular Woven EndoBridge technique

Alireza Sharifi, Amin Deyranlou, Mohammad Charjouei Moghadam and Hamid Niazmand
Additional contact information
Alireza Sharifi: Department of Mechanical Engineering, Colorado State University, 1374 Campus Delivery, Fort Collins, CO 80523, USA
Amin Deyranlou: #x2020;School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, UK
Mohammad Charjouei Moghadam: #x2021;Department of Mechanical Engineering, York University, Toronto, ON, Canada
Hamid Niazmand: #xA7;Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

International Journal of Modern Physics C (IJMPC), 2020, vol. 31, issue 05, 1-14

Abstract: Over the past few decades, different therapeutic methods for the treatment of intracranial aneurysms have been developed. During recent years, novel standalone intrasaccular Woven EndoBridge (WEB) technique has paved the way for efficient therapy and reduced some deficiencies in prior procedures. Blood hemodynamics plays a crucial role in occurrence and perpetuating of aneurysm; therefore, understanding of relevant parameters can lead to a better treatment and evolution of design. Objectively, this paper has established the first mathematical framework to explore hemodynamic parameters for WEB-treated saccular aneurysms by employing Computational Fluid Dynamics (CFD). Two ideal models of artery — one is suffered by a bifurcation aneurysm at Basilar Artery (BA) and another Posterior Cerebral Artery (PCA) aneurysm — are selected. Simulations are performed for an untreated and three WEB-treated aneurysms by Dual Layer (DL), Single Layer (SL) and Single Layer Sphere (SLS) WEBs. Results demonstrate that, generally, the WEB reduces flow intrusion and circulation inside the aneurysm sac, which leads to lowering WSS; however, the infiltrated flow to the WEB causes slight increase in intrasaccular pressure. Moreover, the numerical results show that the WEB DL reduces velocity and WSS, and elevates pressure inside the sac more than the WEBs SL and SLS. Among the explored WEB models (DL, SL and SLS), by assuming thorough binding at the aneurysm neck, the WEB DL demonstrates much efficient performance in flow diversion from the aneurysm, while despite the different structure of WEBs SL and SLS, they perform similarly.

Keywords: Cerebral aneurysm; Woven EndoBridge treatment method; blood hemodynamics; computational fluid dynamics (search for similar items in EconPapers)
Date: 2020
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.worldscientific.com/doi/abs/10.1142/S0129183120500734
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijmpcx:v:31:y:2020:i:05:n:s0129183120500734

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0129183120500734

Access Statistics for this article

International Journal of Modern Physics C (IJMPC) is currently edited by H. J. Herrmann

More articles in International Journal of Modern Physics C (IJMPC) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().