PSI - Issue 15

Sharath Chavalla et al. / Procedia Structural Integrity 15 (2019) 8–15 Chavalla et al. / Structural Integrity Procedia 00 (2019) 000–000

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subjected to crimping. Upon achieving the sufficient crimping, the stent is aligned along the center line of the artery at the desired position. In our case the position is selected in a way that the stent aligns inside the tortuous portion of the selected carotid artery model. In the final step the stent aligns with the artery wall. The first two steps are depicted in the Fig. 3 followed by the final stent position after simulation in the Fig. 4. 5. Conclusion Most of the studies in the stent simulation do not consider the stent deployment. Usage of simplified material models for the stents limit the application of numerical methods for pre-intervention planning. Carotid artery stenting is a complex intervention procedure which demands highly specialized preoperative procedures ranging from the selection of suitable patient to the stent geometry and dimensions. In this context, numerical procedures which consider the patient-specific data and real material properties of the stent provide specific insights for the selection of suitable stent designs. This has become inevitable to avoid unanticipated post-intervention complications. Most of the common stenting simulations have been carried out by FEM. In this work we propose a novel computational framework for stenting simulation with IGA for a real carotid artery model.

Fig. 3. (a) Crimping of the stent; (b) Alignment of the stent to the centerline of the carotid artery.