, Volume 29, Issue 2, pp 255-259
Date: 02 Jan 2006

Conformation of Adjacent Self-expanding Stents: A Cross-Sectional In Vitro Study

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Abstract

We examined the proximal conformation of three commonly used self-expanding stents when the stents were deployed adjacent to one another in a tubular model, simulating a “kissing” stent technique. The stent pairs were evaluated by computed tomogrphy to determine the cross-sectional area excluded by the stents within the model. The mean areas associated with each stent pair were compared and significance evaluated by a t-test. A statistically significant difference was found when the area excluded by adjacent Wallstents was compared with both the Luminexx and SMART stents (p < 0.001 and p < 0.002, respectively). The difference in the area excluded and differences in conformation might play a role in the lower patencies that have been observed in “kissing” stent series.

This work was presented at the Society of Interventional Radiology Annual Scientific Meeting, March 2004, Phoenix AZ.