Automatic stent placement and stent size selection for preoperative planning of pulmonary artery intervention

Gundelwein, Lina, Miro, Joaquim et Duong, Luc. 2015. « Automatic stent placement and stent size selection for preoperative planning of pulmonary artery intervention ». Affiche présentée lors de la conférence : Joint MICCAI-Workshops on Computing and Visualization for Intravascular Imaging and Computer Assisted Stenting (MICCAI CVII-STENT) (Munich, Germany, Oct. 5, 2015).

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Résumé

Stent size selection and placement is one of the most challenging steps in the treatment of pulmonary artery stenosis, especially for pediatric patients with smaller vasculature. The goal of this study is to visually simulate stent placement and deployment, to assist the physician in choosing an appropriate stent length and placement. First a 3D model of the pulmonary artery is segmented from a preoperative CT scan. Second, a 3D stent model is scaled and aligned automatically at the stenosis’ location using a modified cylindrical affine transform. Finally, the optimal stent size and placement are solved using a hill climbing optimization scheme, to find the best outcome in the vicinity of the stenosis. Validation of the proposed approach has been conducted using annotated X-ray angiography acquired before and after stenting. Results show an improvement of the vessel volume ranging from 0.10% - 3.33%. This study is promising for preoperative planning before stenting.

Type de document:	Affiche
Professeur:	Professeur Duong, Luc
Affiliation:	Génie logiciel et des technologies de l'information
Date de dépôt:	06 juill. 2016 19:20
Dernière modification:	06 févr. 2019 14:48
URI:	https://espace2.etsmtl.ca/id/eprint/13000

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