Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment

Autores
Narata, Ana Paula; Blasco, Jordi; Roman, Luis San; Macho, Juan Miguel; Fernandez, Hector; Moyano, Raquel Kale; Winzenrieth, Renaud; Larrabide, Ignacio
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device. Length change was obtained by subtracting the nominal length from the real length and dividing by the nominal length. Implanted devices were simulated on 3-dimensional models of each patient. Simulation error was obtained by subtracting real length from simulated length and dividing by the real length of the FD. Subanalysis was done using ANOVA. Statistical significance was set to P < .05, and bootstrap resampling was used. RESULTS: When assessing the length change of the FD after implantation, changes of 30% in average and up to 80% with reference to the nominal length of the device were observed. The simulation results showed a lower error of 3.52% in averagewith a maximum of 30%. Paired t-test showed nonsignificant differences between measured and real length (P=.07, with the mean of differences at 0.45 mm, 95% confidence interval [-0.950 0.038]). CONCLUSION: Nominal length is not an accurate sizing metric when choosing the size of an FD irrespective of the brand and manufacturer. Good estimation of the final length of the stent after deployment as expressed by an error of 3.5% in average.
Fil: Narata, Ana Paula. Inserm; Francia. Universite de Tours; Francia
Fil: Blasco, Jordi. Hospital Clinic Barcelona; España
Fil: Roman, Luis San. Hospital Clinic Barcelona; España
Fil: Macho, Juan Miguel. Hospital Clinic Barcelona; España
Fil: Fernandez, Hector. Galgo Medical Sl; España
Fil: Moyano, Raquel Kale. Galgo Medical Sl; España
Fil: Winzenrieth, Renaud. Galgo Medical Sl; España
Fil: Larrabide, Ignacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
angiogram
stents
intracranial aneurysm
devices
medical
military deployment
fluid flow
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/95908
Acceder
id CONICETDig_6db645aec147e12305b5b8c0e741ed50
oai_identifier_str oai:ri.conicet.gov.ar:11336/95908
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error AssessmentNarata, Ana PaulaBlasco, JordiRoman, Luis SanMacho, Juan MiguelFernandez, HectorMoyano, Raquel KaleWinzenrieth, RenaudLarrabide, Ignacioangiogramstentsintracranial aneurysmdevicesmedicalmilitary deploymentfluid flowhttps://purl.org/becyt/ford/1.2https://purl.org/becyt/ford/1BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device. Length change was obtained by subtracting the nominal length from the real length and dividing by the nominal length. Implanted devices were simulated on 3-dimensional models of each patient. Simulation error was obtained by subtracting real length from simulated length and dividing by the real length of the FD. Subanalysis was done using ANOVA. Statistical significance was set to P < .05, and bootstrap resampling was used. RESULTS: When assessing the length change of the FD after implantation, changes of 30% in average and up to 80% with reference to the nominal length of the device were observed. The simulation results showed a lower error of 3.52% in averagewith a maximum of 30%. Paired t-test showed nonsignificant differences between measured and real length (P=.07, with the mean of differences at 0.45 mm, 95% confidence interval [-0.950 0.038]). CONCLUSION: Nominal length is not an accurate sizing metric when choosing the size of an FD irrespective of the brand and manufacturer. Good estimation of the final length of the stent after deployment as expressed by an error of 3.5% in average.Fil: Narata, Ana Paula. Inserm; Francia. Universite de Tours; FranciaFil: Blasco, Jordi. Hospital Clinic Barcelona; EspañaFil: Roman, Luis San. Hospital Clinic Barcelona; EspañaFil: Macho, Juan Miguel. Hospital Clinic Barcelona; EspañaFil: Fernandez, Hector. Galgo Medical Sl; EspañaFil: Moyano, Raquel Kale. Galgo Medical Sl; EspañaFil: Winzenrieth, Renaud. Galgo Medical Sl; EspañaFil: Larrabide, Ignacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaOxford University Press2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95908Narata, Ana Paula; Blasco, Jordi; Roman, Luis San; Macho, Juan Miguel; Fernandez, Hector; et al.; Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment; Oxford University Press; Operative Neurosurgery; 15; 5; 11-2018; 557-5662332-4252CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ons/article-abstract/15/5/557/4812488info:eu-repo/semantics/altIdentifier/doi/10.1093/ons/opx288info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:52:33Zoai:ri.conicet.gov.ar:11336/95908instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:52:33.478CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
title Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
spellingShingle Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
Narata, Ana Paula
angiogram
stents
intracranial aneurysm
devices
medical
military deployment
fluid flow
title_short Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
title_full Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
title_fullStr Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
title_full_unstemmed Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
title_sort Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment
dc.creator.none.fl_str_mv Narata, Ana Paula
Blasco, Jordi
Roman, Luis San
Macho, Juan Miguel
Fernandez, Hector
Moyano, Raquel Kale
Winzenrieth, Renaud
Larrabide, Ignacio
author Narata, Ana Paula
author_facet Narata, Ana Paula
Blasco, Jordi
Roman, Luis San
Macho, Juan Miguel
Fernandez, Hector
Moyano, Raquel Kale
Winzenrieth, Renaud
Larrabide, Ignacio
author_role author
author2 Blasco, Jordi
Roman, Luis San
Macho, Juan Miguel
Fernandez, Hector
Moyano, Raquel Kale
Winzenrieth, Renaud
Larrabide, Ignacio
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv angiogram
stents
intracranial aneurysm
devices
medical
military deployment
fluid flow
topic angiogram
stents
intracranial aneurysm
devices
medical
military deployment
fluid flow
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.2
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device. Length change was obtained by subtracting the nominal length from the real length and dividing by the nominal length. Implanted devices were simulated on 3-dimensional models of each patient. Simulation error was obtained by subtracting real length from simulated length and dividing by the real length of the FD. Subanalysis was done using ANOVA. Statistical significance was set to P < .05, and bootstrap resampling was used. RESULTS: When assessing the length change of the FD after implantation, changes of 30% in average and up to 80% with reference to the nominal length of the device were observed. The simulation results showed a lower error of 3.52% in averagewith a maximum of 30%. Paired t-test showed nonsignificant differences between measured and real length (P=.07, with the mean of differences at 0.45 mm, 95% confidence interval [-0.950 0.038]). CONCLUSION: Nominal length is not an accurate sizing metric when choosing the size of an FD irrespective of the brand and manufacturer. Good estimation of the final length of the stent after deployment as expressed by an error of 3.5% in average.
Fil: Narata, Ana Paula. Inserm; Francia. Universite de Tours; Francia
Fil: Blasco, Jordi. Hospital Clinic Barcelona; España
Fil: Roman, Luis San. Hospital Clinic Barcelona; España
Fil: Macho, Juan Miguel. Hospital Clinic Barcelona; España
Fil: Fernandez, Hector. Galgo Medical Sl; España
Fil: Moyano, Raquel Kale. Galgo Medical Sl; España
Fil: Winzenrieth, Renaud. Galgo Medical Sl; España
Fil: Larrabide, Ignacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device. Length change was obtained by subtracting the nominal length from the real length and dividing by the nominal length. Implanted devices were simulated on 3-dimensional models of each patient. Simulation error was obtained by subtracting real length from simulated length and dividing by the real length of the FD. Subanalysis was done using ANOVA. Statistical significance was set to P < .05, and bootstrap resampling was used. RESULTS: When assessing the length change of the FD after implantation, changes of 30% in average and up to 80% with reference to the nominal length of the device were observed. The simulation results showed a lower error of 3.52% in averagewith a maximum of 30%. Paired t-test showed nonsignificant differences between measured and real length (P=.07, with the mean of differences at 0.45 mm, 95% confidence interval [-0.950 0.038]). CONCLUSION: Nominal length is not an accurate sizing metric when choosing the size of an FD irrespective of the brand and manufacturer. Good estimation of the final length of the stent after deployment as expressed by an error of 3.5% in average.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/95908
Narata, Ana Paula; Blasco, Jordi; Roman, Luis San; Macho, Juan Miguel; Fernandez, Hector; et al.; Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment; Oxford University Press; Operative Neurosurgery; 15; 5; 11-2018; 557-566
2332-4252
CONICET Digital
CONICET
url http://hdl.handle.net/11336/95908
identifier_str_mv Narata, Ana Paula; Blasco, Jordi; Roman, Luis San; Macho, Juan Miguel; Fernandez, Hector; et al.; Early Results in Flow Diverter Sizing by Computational Simulation: Quantification of Size Change and Simulation Error Assessment; Oxford University Press; Operative Neurosurgery; 15; 5; 11-2018; 557-566
2332-4252
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ons/article-abstract/15/5/557/4812488
info:eu-repo/semantics/altIdentifier/doi/10.1093/ons/opx288
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613611775852544
score 13.070432

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