1. Patient-Specific Finite-Element Simulation of the Insertion of Guidewire During an EVAR Procedure: Guidewire Position Prediction Validation on 28 Cases.
- Author
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Gindre J, Bel-Brunon A, Rochette M, Lucas A, Kaladji A, Haigron P, and Combescure A
- Subjects
- Computer Simulation, Elastic Modulus, Endovascular Procedures methods, Finite Element Analysis, Humans, Patient-Specific Modeling, Reproducibility of Results, Sensitivity and Specificity, Single-Blind Method, Aorta, Abdominal physiopathology, Aortic Aneurysm, Abdominal physiopathology, Aortic Aneurysm, Abdominal surgery, Endovascular Procedures instrumentation, Fiducial Markers, Models, Cardiovascular, Prosthesis Implantation methods
- Abstract
Objective: Validation of a numerical method to compute arterial deformations under the insertion of an "extra-siff" guidewire during Endovascular Repair of Abdominal Aortic Aneurysm., Methods: We propose the validation of a previously developed simulation method. The model is calibrated using anatomical hypothesis and intraoperative observations. Simulation results are blindly evaluated against 3-D imaging data acquired during the surgical procedure on 28 patients, based on the predicted position of the intraoperative guidewire., Results: Simulation was successfully conducted on the 28 patients. The mean position error given by the Modified Hausdorff Distance for the 28 cases was 3.8 ± 1.9 mm, which demonstrates very good results for most of the cases., Conclusion: The work reported here shows that numerical simulation can predict some rather large variations in the vascular geometry due to tools insertion, for a wide variety of aorto-iliac morphologies. This is a new step toward clinically applicable mechanical simulation., Significance: Validation on 3-D intraoperative data on a large number of cases-robustness on adverse anatomies.
- Published
- 2017
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