公开(公告)号：US20210030482A1

公开(公告)日：2021-02-04

申请号：US16909721

申请日：2020-06-23

Applicant: Covidien LP

Inventor： Guy Alexandroni ,  Oren P. Weingarten ,  Evgeni Kopel ,  Ariel Birenbaum

IPC: A61B34/20 ,  A61B5/06 ,  A61B34/00

Abstract: A method and system for reducing divergence between computed tomography images and a patient using three-dimensional reconstructions. The method utilizes cone beam imaging or three-dimensional fluoroscopy to supplement or supplant pre-operative computed tomography imaging.

公开(公告)号：US10905498B2

公开(公告)日：2021-02-02

申请号：US16259731

申请日：2019-01-28

Applicant: COVIDIEN LP

Inventor： Ariel Birenbaum ,  Ron Barak ,  Oren P. Weingarten

IPC: A61B6/03 ,  A61B34/20 ,  A61B6/12 ,  A61B6/00 ,  A61B6/02 ,  A61B5/06 ,  A61B90/00

Abstract: A method and system implementing a method for detecting a catheter in fluoroscopic data and updating a displayed electromagnetic position of the catheter on a 3D rendering is provided including navigating a catheter to a target area and acquiring fluoroscopic data from a fluoroscopic sweep of the target area. An initial catheter detection is performed to detect catheter tip candidates in each 2D frame of the fluoroscopic data using a shallow neural network. A secondary catheter detection is performed to detect catheter tip candidates in each 2D frame of the fluoroscopic data using a deep neural network. False-positive catheter tip candidates are removed by reconstructing a 3D position of the catheter tip and finding an intersecting point of rays corresponding to each 2D frame.

公开(公告)号：US20200289069A1

公开(公告)日：2020-09-17

申请号：US16886573

申请日：2020-05-28

Applicant: Covidien LP

Inventor： Ron Barak ,  Oren P. Weingarten ,  Ariel Birenbaum ,  Guy Alexandroni

IPC: A61B6/12 ,  A61B6/00 ,  A61B34/20

Abstract: A system for constructing fluoroscopic-based three-dimensional volumetric data of a target area within a patient from two-dimensional fluoroscopic images including a structure of markers, a fluoroscopic imaging device configured to acquire a sequence of images of the target area and of the structure of markers, and a computing device. The computing device is configured to estimate a pose of the fluoroscopic imaging device for at least a plurality of images of the sequence of images based on detection of a possible and most probable projection of the structure of markers as a whole on each image of the plurality of images. The computing device is further configured to construct fluoroscopic-based three-dimensional volumetric data of the target area based on the estimated poses of the fluoroscopic imaging device.