Rupture risk prediction of intracranial aneurysms using open source CFD software
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/187535 |
Resumo: | Computational Fluid Dynamics (CFD) is an important tool for blood flow simulation in intracranial aneurysms. The objective of this study is to describe CFD patterns in intracranial aneurysms based on simulations in order to interfere with clinical decisions to treat patients with this disease. We randomly selected 8 intracranial aneurysms with good quality CT angiogram (CTA). The open-source VMTK®(Vascular Modeling Toolkit) software was used to create surface models and CFD meshes. The open-source OpenFOAM®CFD solver was used to perform the CFD simulations and ParaView®was used for post-processing. Typical parameters associated with aneurysm rupture, such as wall shear stress (WSS), oscillatory shear index (OSI) and WSS gradient, were evaluated to determine if they may help predict aneurysm rupture probability. We have found regions where the WSS remained low during the entire cardiac cycle combined with high values of OSI and regions where the WSS remained high combined high WSS gradient. We associate these regions with high risk of rupture. |
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Rupture risk prediction of intracranial aneurysms using open source CFD softwareComputational Fluid Dynamics (CFD) is an important tool for blood flow simulation in intracranial aneurysms. The objective of this study is to describe CFD patterns in intracranial aneurysms based on simulations in order to interfere with clinical decisions to treat patients with this disease. We randomly selected 8 intracranial aneurysms with good quality CT angiogram (CTA). The open-source VMTK®(Vascular Modeling Toolkit) software was used to create surface models and CFD meshes. The open-source OpenFOAM®CFD solver was used to perform the CFD simulations and ParaView®was used for post-processing. Typical parameters associated with aneurysm rupture, such as wall shear stress (WSS), oscillatory shear index (OSI) and WSS gradient, were evaluated to determine if they may help predict aneurysm rupture probability. We have found regions where the WSS remained low during the entire cardiac cycle combined with high values of OSI and regions where the WSS remained high combined high WSS gradient. We associate these regions with high risk of rupture.National Cancer CoalitionSão Paulo State University (Unesp) School of EngineeringDepartment of Mechanical Engineering Dalhousie UniversityInterventional Neuroradiology Hospital Israelita Albert EinsteinDepartment of Radiology Dalhousie UniversitySão Paulo State University (Unesp) School of EngineeringUniversidade Estadual Paulista (Unesp)Dalhousie UniversityHospital Israelita Albert EinsteinOliveira, I. L. [UNESP]Dias, A. D.S.L. [UNESP]Militzer, J.Del Rio, E. R.V. [UNESP]Gasche, J. L. [UNESP]Baccin, C. E.Shankar, J.2019-10-06T15:39:15Z2019-10-06T15:39:15Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject351-366International Symposium on Advances in Computational Heat Transfer, p. 351-366.2578-5486http://hdl.handle.net/11449/1875352-s2.0-85064035358Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Symposium on Advances in Computational Heat Transferinfo:eu-repo/semantics/openAccess2021-10-23T12:24:09Zoai:repositorio.unesp.br:11449/187535Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T12:24:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
title |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
spellingShingle |
Rupture risk prediction of intracranial aneurysms using open source CFD software Oliveira, I. L. [UNESP] |
title_short |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
title_full |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
title_fullStr |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
title_full_unstemmed |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
title_sort |
Rupture risk prediction of intracranial aneurysms using open source CFD software |
author |
Oliveira, I. L. [UNESP] |
author_facet |
Oliveira, I. L. [UNESP] Dias, A. D.S.L. [UNESP] Militzer, J. Del Rio, E. R.V. [UNESP] Gasche, J. L. [UNESP] Baccin, C. E. Shankar, J. |
author_role |
author |
author2 |
Dias, A. D.S.L. [UNESP] Militzer, J. Del Rio, E. R.V. [UNESP] Gasche, J. L. [UNESP] Baccin, C. E. Shankar, J. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Dalhousie University Hospital Israelita Albert Einstein |
dc.contributor.author.fl_str_mv |
Oliveira, I. L. [UNESP] Dias, A. D.S.L. [UNESP] Militzer, J. Del Rio, E. R.V. [UNESP] Gasche, J. L. [UNESP] Baccin, C. E. Shankar, J. |
description |
Computational Fluid Dynamics (CFD) is an important tool for blood flow simulation in intracranial aneurysms. The objective of this study is to describe CFD patterns in intracranial aneurysms based on simulations in order to interfere with clinical decisions to treat patients with this disease. We randomly selected 8 intracranial aneurysms with good quality CT angiogram (CTA). The open-source VMTK®(Vascular Modeling Toolkit) software was used to create surface models and CFD meshes. The open-source OpenFOAM®CFD solver was used to perform the CFD simulations and ParaView®was used for post-processing. Typical parameters associated with aneurysm rupture, such as wall shear stress (WSS), oscillatory shear index (OSI) and WSS gradient, were evaluated to determine if they may help predict aneurysm rupture probability. We have found regions where the WSS remained low during the entire cardiac cycle combined with high values of OSI and regions where the WSS remained high combined high WSS gradient. We associate these regions with high risk of rupture. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2019-10-06T15:39:15Z 2019-10-06T15:39:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
International Symposium on Advances in Computational Heat Transfer, p. 351-366. 2578-5486 http://hdl.handle.net/11449/187535 2-s2.0-85064035358 |
identifier_str_mv |
International Symposium on Advances in Computational Heat Transfer, p. 351-366. 2578-5486 2-s2.0-85064035358 |
url |
http://hdl.handle.net/11449/187535 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Symposium on Advances in Computational Heat Transfer |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
351-366 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1797789365736308736 |