Navigating an interventional device
First Claim
1. A system for navigating an interventional device a tubular structure of an object;
- comprising;
an X-ray image acquisition device;
a processing unit; and
an interface;
wherein the X-ray image acquisition device is configured to acquire two-dimensional (2D) X-ray fluoroscopy image data in one projection geometry of a region of interest of the tubular structure;
wherein the processing unit is configured;
to detect the interventional device in the 2D X-ray image;
to determine the 2D position of the interventional device in the 2D X-ray image;
to register the at least one 2D X-ray image with a previously acquired three-dimensional (3D) dataset of the region of interest of the tubular structure;
to map the determined 2D position of the interventional device to a position in the 3D dataset;
to extract local 3D parameters of the tubular structure at the position of the interventional device; and
to generate navigational information on behalf of the determined 3D position of the interventional device and the extracted local 3D parameters; and
wherein the interface is configured to provide the navigational information to the user.
1 Assignment
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Accused Products
Abstract
The present invention relates to navigating an interventional device. In particular, the invention relates to a system for navigating an interventional device within a tubular structure of an object, a method for navigating an interventional device within a tubular structure of an object as well as a computer program element and a computer-readable medium. In order to provide enhanced information to the user in an easily comprehensible manner while keeping the X-ray dose to a minimum, a system and a method for navigating an interventional device within a tubular structure of an object are provided, wherein the method comprised the following steps: a) Acquiring 2D X-ray fluoroscopy image data in one projection geometry of a region of interest of the tubular structure; b) detecting the interventional device in the 2D X-ray image; c) determining the 2D position of the interventional device in the 2D X-ray image; d) registering the at least one 2D X-ray image with a previously acquired 3D dataset of the region of interest of the tubular structure; e) mapping the determined 2D position of the interventional device to a position in the 3D dataset; f) extracting local 3D parameters of the tubular structure at the position of the interventional device; g) generating navigational information on behalf of the determined 3D position of the interventional device and the extracted local 3D parameters; and h) providing the navigational information to the user.
20 Citations
12 Claims
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1. A system for navigating an interventional device a tubular structure of an object;
- comprising;
an X-ray image acquisition device; a processing unit; and an interface; wherein the X-ray image acquisition device is configured to acquire two-dimensional (2D) X-ray fluoroscopy image data in one projection geometry of a region of interest of the tubular structure; wherein the processing unit is configured; to detect the interventional device in the 2D X-ray image; to determine the 2D position of the interventional device in the 2D X-ray image; to register the at least one 2D X-ray image with a previously acquired three-dimensional (3D) dataset of the region of interest of the tubular structure; to map the determined 2D position of the interventional device to a position in the 3D dataset; to extract local 3D parameters of the tubular structure at the position of the interventional device; and to generate navigational information on behalf of the determined 3D position of the interventional device and the extracted local 3D parameters; and wherein the interface is configured to provide the navigational information to the user. - View Dependent Claims (2, 3, 4)
- comprising;
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5. A method for navigating an interventional device within a tubular structure of an object, comprising the following steps:
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a) acquiring two-dimensional (2D) X-ray fluoroscopy image data in one projection geometry of a region of interest of the tubular structure; b) detecting the interventional device in the 2D X-ray image; c) determining the 2D position of the interventional device in the 2D X-ray image; d) registering the at least one 2D X-ray image with a previously acquired three-dimensional (3D) dataset of the region of interest of the tubular structure; e) mapping the determined 2D position of the interventional device to a position in the 3D dataset; f) extracting local 3D parameters of the tubular structure at the position of the interventional device; g) generating navigational information on behalf of the determined 3D position of the interventional device and the extracted local 3D parameters; and h) providing the navigational information to the user. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A non-transitory computer readable medium embodying a program for navigating an interventional device within a tubular structure of an object, said program having instructions executable by a processor for performing a plurality of acts, among said plurality there being the acts of:
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a) acquiring two-dimensional (2D) X-ray fluoroscopy image data in one projection geometry of a region of interest of the tubular structure; b) detecting the interventional device in the 2D X-ray image; c) determining the 2D position of the interventional device in the 2D X-ray image; d) registering the at least one 2D X-ray image with a previously acquired three-dimensional 3D dataset of the region of interest of the tubular structure; e) mapping the determined 2D position of the interventional device to a position in the 3D dataset; f) extracting local 3D parameters of the tubular structure at the position of the interventional device; g) generating navigational information on behalf of the determined 3D position of the interventional device and the extracted local
31) parameters; andh) providing the navigational information to the user.
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Specification