Aortic Arch Aneurysm Clinical Trial
Official title:
Simulation of Stent-graft Deployment in Aortic Arch Aneurysms
Total endovascular repair of the aortic arch represents a promising option for patients ineligible to open surgery. Custom-made design of stent-grafts (SG), such as the Terumo Aortic® RelayBranch device (DB), requires complex preoperative measures. Accurate SG deployment is required to avoid intraoperative or postoperative complications, which is extremely challenging in the aortic arch. In that context, the investigators aim is to develop a computational tool able to predict SG deployment in such highly complex situations. Four patient-specific cases will be performed with complete deployment of the DB and its bridging stents in aneurysmal aortic arch. Deviations of simulation predictions from actual stent positions will be estimated based on post-operative scan and a sensitivity analysis will be performed to assess the effects of material parameters. If good agreement between simulation and reality is obtained, numerical simulations will show their ability to successfully predict the DB deployment in complex anatomy. The results will emphasize the potential of computational simulations to assist practitioners in planning and performing complex and secure interventions.
The process of numerical simulation of double-branched device in aortic arch aneurysm involves: (i) aortic arch segmentation with data from the preoperative CT-scan (ii) numerical modeling of the actual stentgraft used to treat the patient (iii) simulation of stentgraft deployment in aortic arch (iv) validation of simulation results based on post-operative CT scan images The goal of this study is to develop a numerical model of stentgraft deployment able to predict the actual deployement of the double branched device in aortic arch aneurysm. ;
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