Development of an in vitro measurement method for improved assessment of the side branch expansion capacity

The expansion capacity and accessibility of the side branch is essential for the stenting of complex bifurcations. Since previous measurement methods only provide limited information based on geometrical data of stent cells, a new measurement approach was developed which considers the mechanical def...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rosam Paula, Borowski Finja, Stiehm Michael, Schmitz Klaus Peter, Keiler Jonas, Wree Andreas, Öner Alper Ö, Schmidt Wolfram
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2020
Materias:	stents side branch accessibility expansion capacity strut deformation bifurcation Medicine R
Acceso en línea:	https://doaj.org/article/c732a82843944a548da9bf74ecc3730e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c732a82843944a548da9bf74ecc3730e
record_format	dspace
spelling	oai:doaj.org-article:c732a82843944a548da9bf74ecc3730e2021-12-05T14:10:43ZDevelopment of an in vitro measurement method for improved assessment of the side branch expansion capacity2364-550410.1515/cdbme-2020-3114https://doaj.org/article/c732a82843944a548da9bf74ecc3730e2020-09-01T00:00:00Zhttps://doi.org/10.1515/cdbme-2020-3114https://doaj.org/toc/2364-5504The expansion capacity and accessibility of the side branch is essential for the stenting of complex bifurcations. Since previous measurement methods only provide limited information based on geometrical data of stent cells, a new measurement approach was developed which considers the mechanical deformation capacity of the stent design. This approach provides essential information on the stent with regard to the application of bifurcation stenting. Four different commercially available coronary stents (nominal diameter 3.0 mm) were dilated and a central strut cell was over-expanded by means balloon catheters of increasing nominal diameter (2.0 to 5.0 mm). After balloon inflation, the remaining cell size was investigated for maximum cell diameter and strut fractures. Large expansion capacity without cell damage is taken as a measure of the accessibility of the side branch. In none of the expansion experiments the desired target size could be achieved, which is due to the elastic recoil of the stent cells. Deviations from the target diameter between 14-38% were determined. However, larger diameters also showed a constriction of the balloon, so that in some cases the target diameter could not be achieved at all. No strut fractures occurred even at maximum balloon diameter and pressure (5.0 mm noncompliant balloons). As a result the side branch accessibility differs depending on the individual stent designs. No particular risk for the stent was found by extensive overdilatation.Rosam PaulaBorowski FinjaStiehm MichaelSchmitz Klaus PeterKeiler JonasWree AndreasÖner Alper ÖSchmidt WolframDe Gruyterarticlestentsside branch accessibilityexpansion capacitystrut deformationbifurcationMedicineRENCurrent Directions in Biomedical Engineering, Vol 6, Iss 3, Pp 442-445 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	stents side branch accessibility expansion capacity strut deformation bifurcation Medicine R
spellingShingle	stents side branch accessibility expansion capacity strut deformation bifurcation Medicine R Rosam Paula Borowski Finja Stiehm Michael Schmitz Klaus Peter Keiler Jonas Wree Andreas Öner Alper Ö Schmidt Wolfram Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
description	The expansion capacity and accessibility of the side branch is essential for the stenting of complex bifurcations. Since previous measurement methods only provide limited information based on geometrical data of stent cells, a new measurement approach was developed which considers the mechanical deformation capacity of the stent design. This approach provides essential information on the stent with regard to the application of bifurcation stenting. Four different commercially available coronary stents (nominal diameter 3.0 mm) were dilated and a central strut cell was over-expanded by means balloon catheters of increasing nominal diameter (2.0 to 5.0 mm). After balloon inflation, the remaining cell size was investigated for maximum cell diameter and strut fractures. Large expansion capacity without cell damage is taken as a measure of the accessibility of the side branch. In none of the expansion experiments the desired target size could be achieved, which is due to the elastic recoil of the stent cells. Deviations from the target diameter between 14-38% were determined. However, larger diameters also showed a constriction of the balloon, so that in some cases the target diameter could not be achieved at all. No strut fractures occurred even at maximum balloon diameter and pressure (5.0 mm noncompliant balloons). As a result the side branch accessibility differs depending on the individual stent designs. No particular risk for the stent was found by extensive overdilatation.
format	article
author	Rosam Paula Borowski Finja Stiehm Michael Schmitz Klaus Peter Keiler Jonas Wree Andreas Öner Alper Ö Schmidt Wolfram
author_facet	Rosam Paula Borowski Finja Stiehm Michael Schmitz Klaus Peter Keiler Jonas Wree Andreas Öner Alper Ö Schmidt Wolfram
author_sort	Rosam Paula
title	Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
title_short	Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
title_full	Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
title_fullStr	Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
title_full_unstemmed	Development of an in vitro measurement method for improved assessment of the side branch expansion capacity
title_sort	development of an in vitro measurement method for improved assessment of the side branch expansion capacity
publisher	De Gruyter
publishDate	2020
url	https://doaj.org/article/c732a82843944a548da9bf74ecc3730e
work_keys_str_mv	AT rosampaula developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT borowskifinja developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT stiehmmichael developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT schmitzklauspeter developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT keilerjonas developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT wreeandreas developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT oneralpero developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity AT schmidtwolfram developmentofaninvitromeasurementmethodforimprovedassessmentofthesidebranchexpansioncapacity
_version_	1718371807707267072

Development of an in vitro measurement method for improved assessment of the side branch expansion capacity

Ejemplares similares