Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms
Joint Authors
Sunderland, Kevin
Haferman, Christopher
Chintalapani, Gouthami
Jiang, Jingfeng
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-07
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
This study aims to develop an alternative vortex analysis method by measuring structure ofIntracranial aneurysm (IA) flow vortexes across the cardiac cycle, to quantify temporal stability of aneurismal flow.
Hemodynamics were modeled in “patient-specific” geometries, using computational fluid dynamics (CFD) simulations.
Modified versions of known λ2 and Q-criterion methods identified vortex regions; then regions were segmented out using the classical marching cube algorithm.
Temporal stability was measured by the degree of vortex overlap (DVO) at each step of a cardiac cycle against a cycle-averaged vortex and by the change in number of cores over the cycle.
No statistical differences exist in DVO or number of vortex cores between 5 terminal IAs and 5 sidewall IAs.
No strong correlation exists between vortex core characteristics and geometric or hemodynamic characteristics of IAs.
Statistical independence suggests this proposed method may provide novel IA information.
However, threshold values used to determine the vortex core regions and resolution of velocity data influenced analysis outcomes and have to be addressed in future studies.
In conclusions, preliminary results show that the proposed methodology may help give novel insight toward aneurismal flow characteristic and help in future risk assessment given more developments.
American Psychological Association (APA)
Sunderland, Kevin& Haferman, Christopher& Chintalapani, Gouthami& Jiang, Jingfeng. 2016. Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms. Computational and Mathematical Methods in Medicine،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1100190
Modern Language Association (MLA)
Sunderland, Kevin…[et al.]. Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms. Computational and Mathematical Methods in Medicine No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1100190
American Medical Association (AMA)
Sunderland, Kevin& Haferman, Christopher& Chintalapani, Gouthami& Jiang, Jingfeng. Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms. Computational and Mathematical Methods in Medicine. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1100190
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1100190