The fluid dynamics in two different stent configurations, peak-to-valley (S1) and peak-to-peak (S2), within a fully expanded situation and a 30% restenosis, is investigated. Numerical simulations are carried out in order to evaluate the conditions promoting atherosclerotic events when a selfexpanding bare metal stents (SE-BMS) is applied. The conclusions are that the two configurations, S1 and S2, have a similar fluid dynamic behavior, as far as the WSS is concerned, but OSI and RRT maps

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... that the peak-to-peak configuration, S2, has a better behavior than the peak-to-valley one, S1. Key words: stent, stenosis, wall shear stress, OSI, RRT J J r R r J J