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Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular

Phase Contrast-Magnetic Resonance Image (PC-MRI) measurement integrated computational fluid dynamics (CFD) simulation are used to obtain details information of model boundaries on patient specific hemodynamics. This study focuses the effects of threshold coefficient (Cthres) on the solution of error...

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Main Authors: Mohd Azrul Hisham, Mohd Adib, Nurul Najihah, Mohd Nazri, Nur Hazreen, Mohd Hasni
Format: Conference or Workshop Item
Language:English
English
Published: Dime University of Genoa 2018
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/22342/1/10.%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf
http://umpir.ump.edu.my/id/eprint/22342/2/10.1%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf
http://umpir.ump.edu.my/id/eprint/22342/
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spelling my.ump.umpir.223422018-12-10T05:12:09Z http://umpir.ump.edu.my/id/eprint/22342/ Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular Mohd Azrul Hisham, Mohd Adib Nurul Najihah, Mohd Nazri Nur Hazreen, Mohd Hasni TJ Mechanical engineering and machinery Phase Contrast-Magnetic Resonance Image (PC-MRI) measurement integrated computational fluid dynamics (CFD) simulation are used to obtain details information of model boundaries on patient specific hemodynamics. This study focuses the effects of threshold coefficient (Cthres) on the solution of error estimation in PC-MRI measurement integrated blood flow simulation using computational fluid dynamics. The investigation involved five patient-specific aneurysm models reconstructed from digital subtraction angiography (DSA) image, where the aneurysm is developed at the bifurcation. To evaluate the effect of Cthres on the solution of error estimation, two different of CFD analysis with unphysiological and boundary adjustment method are performed. The quantitative comparison of the flow field between the CFD analysis and PC-MRI measurement data showed significant different were observed in the flow fields obtained between unphysiological and boundary adjustment method. The result shows, the geometry have the strongest influence on aneurysm hemodynamics where the lowest of velocity error was obtained at configuration of the Cthres value of 0.3 and the total of velocity error between measurement integrated CFD simulations reduces to less than 25% for all patients using the boundary adjustment method. Hence, this preliminary method is a possible solution to further understanding on error estimation between PC-MRI and CFD simulation for patient hemodynamics. Dime University of Genoa 2018 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/22342/1/10.%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf pdf en http://umpir.ump.edu.my/id/eprint/22342/2/10.1%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf Mohd Azrul Hisham, Mohd Adib and Nurul Najihah, Mohd Nazri and Nur Hazreen, Mohd Hasni (2018) Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular. In: 7th International Workshop on Innovative Simulation for Health Care, IWISH 2018, 17 - 19 Sep 2018 , Danubius Health Spa Resort Margitsziget Budapest, Hungary. pp. 1-7.. ISBN 978-888574115-7
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mohd Azrul Hisham, Mohd Adib
Nurul Najihah, Mohd Nazri
Nur Hazreen, Mohd Hasni
Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
description Phase Contrast-Magnetic Resonance Image (PC-MRI) measurement integrated computational fluid dynamics (CFD) simulation are used to obtain details information of model boundaries on patient specific hemodynamics. This study focuses the effects of threshold coefficient (Cthres) on the solution of error estimation in PC-MRI measurement integrated blood flow simulation using computational fluid dynamics. The investigation involved five patient-specific aneurysm models reconstructed from digital subtraction angiography (DSA) image, where the aneurysm is developed at the bifurcation. To evaluate the effect of Cthres on the solution of error estimation, two different of CFD analysis with unphysiological and boundary adjustment method are performed. The quantitative comparison of the flow field between the CFD analysis and PC-MRI measurement data showed significant different were observed in the flow fields obtained between unphysiological and boundary adjustment method. The result shows, the geometry have the strongest influence on aneurysm hemodynamics where the lowest of velocity error was obtained at configuration of the Cthres value of 0.3 and the total of velocity error between measurement integrated CFD simulations reduces to less than 25% for all patients using the boundary adjustment method. Hence, this preliminary method is a possible solution to further understanding on error estimation between PC-MRI and CFD simulation for patient hemodynamics.
format Conference or Workshop Item
author Mohd Azrul Hisham, Mohd Adib
Nurul Najihah, Mohd Nazri
Nur Hazreen, Mohd Hasni
author_facet Mohd Azrul Hisham, Mohd Adib
Nurul Najihah, Mohd Nazri
Nur Hazreen, Mohd Hasni
author_sort Mohd Azrul Hisham, Mohd Adib
title Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
title_short Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
title_full Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
title_fullStr Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
title_full_unstemmed Phase contrast-MRI Integrated CFD Simulation: effect of Cthres on blood flow fields for patient- specific cerebrovascular
title_sort phase contrast-mri integrated cfd simulation: effect of cthres on blood flow fields for patient- specific cerebrovascular
publisher Dime University of Genoa
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/22342/1/10.%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf
http://umpir.ump.edu.my/id/eprint/22342/2/10.1%20PC-%20MRI%20integrated%20CFD%20simulation%20-%20Effect%20of%20Cthres.pdf
http://umpir.ump.edu.my/id/eprint/22342/
_version_ 1643669357382860800
score 13.211869

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