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US 2013/0172732 A1Published application
Method for performing dynamic registration, overlays, and 3d views with fluoroscopic images
AssigneeSiemens Aktiengesellschaft
InventorsAtilla Peter Kiraly, Wen Wu, Norbert Strobel, Alexander Benjamin Brost, Terrence Chen
Life of this patent
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Abstract
A method (200, 300) and system (100) for performing real-time, dynamic overlays on fluoroscopic images to aid in navigation and localization during medical procedures.
Claims26
A method of registration of image overlays for anatomical images, comprising:
- a. obtaining dynamic images of an anatomical region of interest;
- b. providing a static image of the anatomical region of interest;
- c. performing a rigid registration of the static image with the dynamic images using a lasso catheter secured to an object within the anatomical region of interest;
- d. estimating motion of the anatomical region of interest in the dynamic images using the lasso catheter;
- and
- e. dynamically updating registration of the images using the motion estimation.
3 more elements
A method of dynamically updating overlay images on fluoroscopic images to aid in medical procedures, comprising:
- a. securing a lasso catheter to a first anatomical structure that allows the lasso catheter to move in synchronization with a second anatomical structure;
- b. performing a rigid registration of an overlay image with real-time fluoroscopic images of the first and second anatomical structures using the lasso catheter;
- c. tracking movement of the lasso catheter and the real-time fluoroscopic images of the first and second anatomical structures and estimating the motion of the lasso catheter and the real-time fluoroscopic images of the first and second anatomical structures;
- d. determining from the tracking and estimating step whether or not there are significant movements or significant shape changes, or both, of the lasso catheter that indicate the lasso catheter is no longer secured to the first anatomical structure;
- and
- e. stopping tracking and estimating if it is determined there are significant movements or significant shape changes, or both, of the lasso catheter that indicate the lasso catheter is no longer secured to the first anatomical structure, and updating registration of the overlay image with the real-time fluoroscopic images if it is determined there are not significant movements or significant shape changes, or both, of the lasso catheter that indicate the lasso catheter is no longer secured to the first anatomical structure.
3 more elements
A method of overlaying image information, comprising:
- providing a real-time 3D image of an object;
- overlaying 2D image information onto the real-time 3D image;
- and dynamically adjusting the 2D image information to account for motions of the real-time 3D image.
A system of providing image guidance for medical procedures, comprising:
- an imager that acquires fluoroscopic images of an anatomical structure of a patient and a processor that manipulates the images and other image data to produce image overlays for the fluoroscopic images that are dynamically adjusted to compensate for motion of the anatomical structure within the fluoroscopic images using motion estimations of a lasso catheter positioned in a patient to be in synchronization with the anatomical structure.
Dependencies are inferred from the claim text.