Effects of stents under asymmetric inflow conditions

Issue title: Workshop: Breaking Symmetry in Haemodynamics, London, UK, 23–24 April 2001

Article type: Research Article

Authors: Atherton, M.A. | Tesch, K. | Collins, M.W.

Affiliations: South Bank University, London, UK

Note: [] Address for correspondence: Dr Mark Atherton, BioMedical Engineering & Design Research Group, School of Engineering, South Bank University, Borough Road, London SE1 0AA, UK. Tel.: +44 20 7815 7679; Fax: +44 20 7815 7699; E‐mail: mark.atherton@sbu.ac.uk.

Abstract: Patient‐to‐patient variations in artery geometry may determine their susceptibility to stenosis formation. These geometrical variations can be linked to variations in flow characteristics such as wall shear stress through stents, which increases the risk of restenosis. This paper considers computer models of stents in non‐symmetric flows and their effects on flow characteristics at the wall. This is a fresh approach from the point of view of identifying a stent design whose performance is insensitive to asymmetric flow. Measures of dissipated energy and power are introduced in order to discriminate between competing designs of stents.

Journal: Biorheology, vol. 39, no. 3-4, pp. 501-506, 2002