Global and semi-global registration for image-based bronchoscopy guidance
First Claim
1. A semi-global method for image-guided bronchoscopy adapted for use with a bronchoscope capable of articulation and rotation, including the steps of:
- providing a processor coupled to a display device, the processor being programmed to pre-compute a route to a region of interest (ROI) within an airway tree including bifurcations along the pre-computed route;
presenting a global picture to a user of a bronchoscope one or more bifurcations along the pre-computed route to the region of interest (ROI) within the airway tree, the global picture symbolically displaying preferred bronchoscope orientations associated with each bifurcation;
providing discrete bronchoscope rotation and articulation maneuver instructions at one or more locations along the pre-computed route to guide the user of the bronchoscope to the ROI based upon the preferred bronchoscope orientations, wherein the maneuver instructions are displayed in dialog form.
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Accused Products
Abstract
Two system-level bronchoscopy guidance solutions are presented. The first incorporates a global-registration algorithm to provide the physician with updated navigational and guidance information during bronchoscopy. The system can handle general navigation to a region of interest (ROI), as well as adverse events, and it requires minimal commands so that it can be directly controlled by the physician. The second solution visualizes the global picture of all the bifurcations and their relative orientations in advance and suggests the maneuvers needed by the bronchoscope to approach the ROI. Guided bronchoscopy results using human airway-tree phantoms demonstrate the potential of the two solutions.
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Citations
19 Claims
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1. A semi-global method for image-guided bronchoscopy adapted for use with a bronchoscope capable of articulation and rotation, including the steps of:
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providing a processor coupled to a display device, the processor being programmed to pre-compute a route to a region of interest (ROI) within an airway tree including bifurcations along the pre-computed route; presenting a global picture to a user of a bronchoscope one or more bifurcations along the pre-computed route to the region of interest (ROI) within the airway tree, the global picture symbolically displaying preferred bronchoscope orientations associated with each bifurcation; providing discrete bronchoscope rotation and articulation maneuver instructions at one or more locations along the pre-computed route to guide the user of the bronchoscope to the ROI based upon the preferred bronchoscope orientations, wherein the maneuver instructions are displayed in dialog form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification