Beyond the Virtual Intracranial Stenting Challenge 2007: non-Newtonian and flow pulsatility effects

Cavazzuti, Marco; Atherton, M. A.; Collins, M. W.; Barozzi, Giovanni Sebastiano

doi:10.1016/j.jbiomech.2010.04.042

Three models of stented cerebral aneurysms, originating from the VirtualIntracranial Stenting Challenge 2007 (visc'07), are meshed and the owcharacteristics simulated using commercial Computational Fluid Dynamics(cfd) software. Following views expressed in the literature and consistentwith the recommendations of a report, the eects of non-Newtonian viscos-ity and pulsatile ow are implemented. Conventional graphical Wall ShearStress (wss) output and basic summary measures of wss are normally usedas a qualitative means of comparing the cfd simulations. Herein a quan-titative measure of stent performance using wss distribution is presented,which clearly discriminates in favour of the stent design identied by theother groups in the report and provides a more informative comparison. Weconclude that non-Newtonian and pulsatile eects are important to includein order to avoid underestimating wss and to discriminate more eectivelybetween stent designs.

Beyond the Virtual Intracranial Stenting Challenge 2007: non-Newtonian and flow pulsatility effects / Cavazzuti, Marco; M. A., Atherton; M. W., Collins; Barozzi, Giovanni Sebastiano. - In: JOURNAL OF BIOMECHANICS. - ISSN 0021-9290. - STAMPA. - 43(2010), pp. 2645-2647.

Data di pubblicazione:	2010
Titolo:	Beyond the Virtual Intracranial Stenting Challenge 2007: non-Newtonian and flow pulsatility effects
Autore/i:	Cavazzuti, Marco; M. A., Atherton; M. W., Collins; Barozzi, Giovanni Sebastiano
Autore/i UNIMORE:	CAVAZZUTI, Marco M. A. Atherton M. W. Collins BAROZZI, Giovanni Sebastiano mostra contributor esterni nascondi contributor esterni
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/j.jbiomech.2010.04.042
Rivista:	JOURNAL OF BIOMECHANICS
Volume:	43
Pagina iniziale:	2645
Pagina finale:	2647
Codice identificativo ISI:	WOS:000282545900031
Codice identificativo Scopus:	2-s2.0-77956406795
Codice identificativo Pubmed:	20537337
Citazione:	Beyond the Virtual Intracranial Stenting Challenge 2007: non-Newtonian and flow pulsatility effects / Cavazzuti, Marco; M. A., Atherton; M. W., Collins; Barozzi, Giovanni Sebastiano. - In: JOURNAL OF BIOMECHANICS. - ISSN 0021-9290. - STAMPA. - 43(2010), pp. 2645-2647.
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