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1. US20140321710 - Method for three-dimensional localization of an object from a two-dimensional medical image

Office United States of America
Application Number 14371562
Application Date 16.01.2013
Publication Number 20140321710
Publication Date 30.10.2014
Grant Number 09142018
Grant Date 22.09.2015
Publication Kind B2
IPC
G06K 9/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06T 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
A61B 6/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
12Devices for detecting or locating foreign bodies
A61B 19/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
19Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
A61B 6/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
CPC
G06T 7/0016
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
0002Inspection of images, e.g. flaw detection
0012Biomedical image inspection
0014using an image reference approach
0016involving temporal comparison
A61B 6/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
12Devices for detecting or locating foreign bodies
A61B 6/5294
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
52Devices using data or image processing specially adapted for radiation diagnosis
5294involving using additional data, e.g. patient information, image labeling, acquisition parameters
A61B 34/20
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
20Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 2034/2065
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
20Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
2046Tracking techniques
2065Tracking using image or pattern recognition
A61B 2090/376
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
90Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
36Image-producing devices or illumination devices not otherwise provided for
37Surgical systems with images on a monitor during operation
376using X-rays, e.g. fluoroscopy
Applicants Normand Robert
SUNNYBROOK HEALTH SCIENCES CENTRE
Eugene Crystal
Inventors Normand Robert
Eugene Crystal
Agents Quarles & Brady, LLP
Title
(EN) Method for three-dimensional localization of an object from a two-dimensional medical image
Abstract
(EN)

A method for determining the three-dimensional location of an object in real-time from a two-dimensional medical image obtained with a medical imaging system is provided. For example, the three-dimensional location of an interventional medical device or a marker positioned on such a device may be determined from a two-dimensional x-ray image obtained with an interventional x-ray imaging system. Template images corresponding to the object under different imaging geometries and orientations are produced and are compared to images acquired with the medical imaging system. Similarity measures, such as normalized cross correlation and normalized similarity integral, are used to determine the similarity between a selected template image and the medical images in different stages of refining the position information for the object.

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