The formation and growth of intracranial aneurysms is partly attributed to various hemodynamic factors such as shear stress and pressure. This issue is further investigated in the present paper using some new insight gained from passive scalar dispersion in the blood flow. Intracranial aneurysms are best visualized using selective catheter angiogram technique where a contrast agent added to the blood flow is visualized and filmed dynamically. In the current study, the 2D threshold images produced by “3D rotational X-ray angiography technique” are used in an ‘in-house’ program to construct a 3D volumetric grid which is then used to calculate the blood flow through the aneurysm. Dispersion of a fluid material with properties similar to that of the contrast agent is also modeled in the blood flow. Unlike previous studies, we investigated the dispersion of a pulsed scalar to better understand the flow dynamics. Results from a large aneurysm are compared to those for a relative small one to show the effect of geometry. The dispersion and flow patterns show the localization of high stress in stagnation areas, which may be the potential regions for the origin and growth of aneurysms. We also investigated the dependence of flow properties on the initial and boundary conditions to calculate the pressure and the wall shear stress values for a given geometry.
Skip Nav Destination
ASME/JSME 2007 5th Joint Fluids Engineering Conference
July 30–August 2, 2007
San Diego, California, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4289-4
PROCEEDINGS PAPER
Dispersion Study in a Giant Intracranial Aneurysm Using Computational Fluid Dynamics Techniques
Francisco A. Pino-Romainville,
Francisco A. Pino-Romainville
West Virginia University, Morgantown, WV
Search for other works by this author on:
Jagannath R. Nanduri,
Jagannath R. Nanduri
West Virginia University, Morgantown, WV
Search for other works by this author on:
Ansaar T. Rai,
Ansaar T. Rai
West Virginia University, Morgantown, WV
Search for other works by this author on:
Ismail B. Celik
Ismail B. Celik
West Virginia University, Morgantown, WV
Search for other works by this author on:
Francisco A. Pino-Romainville
West Virginia University, Morgantown, WV
Jagannath R. Nanduri
West Virginia University, Morgantown, WV
Ansaar T. Rai
West Virginia University, Morgantown, WV
Ismail B. Celik
West Virginia University, Morgantown, WV
Paper No:
FEDSM2007-37444, pp. 681-690; 10 pages
Published Online:
March 30, 2009
Citation
Pino-Romainville, FA, Nanduri, JR, Rai, AT, & Celik, IB. "Dispersion Study in a Giant Intracranial Aneurysm Using Computational Fluid Dynamics Techniques." Proceedings of the ASME/JSME 2007 5th Joint Fluids Engineering Conference. Volume 2: Fora, Parts A and B. San Diego, California, USA. July 30–August 2, 2007. pp. 681-690. ASME. https://doi.org/10.1115/FEDSM2007-37444
Download citation file:
3
Views
0
Citations
Related Proceedings Papers
Related Articles
Fluid–Structure Interaction Model for Assessing Aneurysm Initiation at the Circle of Willis
ASME J of Medical Diagnostics (August,2022)
A Fluid–Structure Interaction Model of the Left Coronary Artery
J Biomech Eng (December,2018)
Influence of Hemodialysis Catheter Insertion on Hemodynamics in the Central Veins
J Biomech Eng (September,2020)
Related Chapters
Concluding remarks
Mechanical Blood Trauma in Circulatory-Assist Devices
Completing the Picture
Air Engines: The History, Science, and Reality of the Perfect Engine
Introduction
Design of Mechanical Bearings in Cardiac Assist Devices