The Theoretical Changes in Biomechanics With Stent Deployment With Both MPS and BVS
Curved vessels undergo straightening with MPS, resulting in disturbed flow and higher circumferential outward stress at stent edges (red arrows) and greater plaque prolapse at the lesion. Stent deployment with the more conformable BVS results in more laminar flow and lower outward stress (white arrows). With scaffolding resorption, the original geometry is restored, resulting in improvement in biomechanics. This image was created by Saurabh S. Dhawan, MD. BVS = bioabsorbable vascular scaffold; MPS = metallic platform stent.