US 12,070,273 B2
Simulation of the deployment of an endoprosthesis in real time
Aymeric Pionteck, Moirans (FR); Baptiste Pierrat, Aveizieux (FR); Sébastien Gorges, Moirans (FR); Jean-Noël Albertini, Sorbier (FR); and Stéphane Avril, Saint-Etienne (FR)
Assigned to THALES, Courbevoie (FR); ASSOCIATION POUR LA RECHERCHE ET LE DEVELOPPEMENT DE METHODES ET PROCESSUS INDUSTRIELS—ARMINES, Paris (FR); UNIVERSITE JEAN MONNET SAINT ETIENNE, Saint Etienne (FR); and CENTRE HOSPITALIER UNIVERSITAIRE SAINT-ETIENNE, Saint Etienne (FR)
Filed by THALES, Courbevoie (FR); ASSOCIATION POUR LA RECHERCHE ET LE DEVELOPPEMENT DE METHODES ET PROCESSUS INDUSTRIELS—ARMINES, Paris (FR); UNIVERSITE JEAN MONNET SAINT ETIENNE, Saint-Etienne (FR); and CENTRE HOSPITALIER UNIVERSITAIRE SAINT-ETIENNE, Saint-Etienne (FR)
Filed on Jul. 23, 2020, as Appl. No. 16/936,885.
Claims priority of application No. 1908569 (FR), filed on Jul. 29, 2019.
Prior Publication US 2021/0030474 A1, Feb. 4, 2021
Int. Cl. G01N 33/48 (2006.01); A61B 34/10 (2016.01); A61B 90/00 (2016.01); G01N 33/50 (2006.01)
CPC A61B 34/10 (2016.02) [A61B 90/37 (2016.02); A61B 90/39 (2016.02); A61B 2034/102 (2016.02); A61B 2034/107 (2016.02); A61B 2090/367 (2016.02); A61B 2090/376 (2016.02); A61B 2090/3966 (2016.02)] 11 Claims
OG exemplary drawing
 
1. A method implemented by an imaging system comprising an imaging device and a calculation device comprising a calculation unit, the imaging device being connected to the calculation device, wherein the method comprises:
a capture, by the imaging device, of a 2D image of a vascular structure and of an endoprosthesis comprising a plurality of stents, by X-ray;
an acquisition, by the calculation unit, of a 3D model of the vascular structure;
an acquisition, by the calculation unit, of a model of an endoprosthesis in the vascular structure;
a determination, by the calculation unit, from the 2D image, and for each stent, of values comprising at least one position, an angle of intrinsic rotation (rx′), and at least one deployment value;
a simulation, by the calculation unit, of a deployment in the 3D model of the vascular structure, for each stent, of a model of the stent representing a structure of the stent, from the values determined in the determination step, said model of the stent being initialized on a basis of the model of the endoprosthesis; and
a display, by the calculation device, of the stent models deployed in the simulation step, on one or more display screens; and
said method being wherein the determination, by the calculation unit, for at least one stent, of its angle of intrinsic rotation (rx′) comprises the determination of the angle of intrinsic rotation (rx′) for which at least one 3D position projection of at least one radiopaque marker on the stent most closely matches to at least one image of the at least one marker on the 2D image.