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Updated: Mar 27, 2026
Monitoring the Wall Mechanics During Stent Deployment in a Vessel
Published on: May 8, 2012
Vascular Response to Experimental Stent Malapposition and Under-Expansion
Caroline C O'Brien1, Augusto C Lopes2, Kumaran Kolandaivelu2,3
1Institute of Medical Engineering and Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, E25-449, Cambridge, MA, 02139, USA. ccob@mit.edu.
Abstract:
Up to 80% of all endovascular stents have malapposed struts, and while some impose catastrophic events others are inconsequential. Thirteen stents were implanted in coronary arteries of seven healthy Yorkshire pigs, using specially-designed cuffed balloons inducing controlled stent malapposition and under-expansion. Optical coherence tomography (OCT) imaging confirmed that 25% of struts were malapposed (strut-wall distance
