Combination localization system
First Claim
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1. A method of correlating a first coordinate system of a first tracking system and a second coordinate system of a second tracking system, comprising:
- determining a registration of the first coordinate system of the first tracking system and the second coordinate system of the second tracking system based on determining a first position with the first tracking system and determining a second position with the second tracking system;
determining a vector displacement between the determined first position of the first tracking system and the determined second position of the second tracking system;
transforming the determined first position with the first tracking system relative to the determined second position with the second tracking system;
collecting a first set of position data with the first tracking system and a second set of position data with the second tracking system;
determining a plurality of vectors, wherein one vector is determined between each synchronously related position data in the first set and the second set;
interpolating position data collected with the first tracking system to register the first coordinate system to the second coordinate system of the second tracking system; and
translating a determined third position of the first tracking system relative to a selected position of the second tracking system based on the determined vector displacement.
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Abstract
A navigation system or combination of navigation systems can be used to provide two or more navigation modalities to navigate a single instrument in a volume. For example, both an Electromagnetic (EM) and Electropotential (EP) navigation system can be used to navigate an instrument within the volume. Image data can also be illustrated relative to a tracked position of the instrument in the volume for navigation.
828 Citations
39 Claims
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1. A method of correlating a first coordinate system of a first tracking system and a second coordinate system of a second tracking system, comprising:
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determining a registration of the first coordinate system of the first tracking system and the second coordinate system of the second tracking system based on determining a first position with the first tracking system and determining a second position with the second tracking system; determining a vector displacement between the determined first position of the first tracking system and the determined second position of the second tracking system; transforming the determined first position with the first tracking system relative to the determined second position with the second tracking system; collecting a first set of position data with the first tracking system and a second set of position data with the second tracking system; determining a plurality of vectors, wherein one vector is determined between each synchronously related position data in the first set and the second set; interpolating position data collected with the first tracking system to register the first coordinate system to the second coordinate system of the second tracking system; and translating a determined third position of the first tracking system relative to a selected position of the second tracking system based on the determined vector displacement. - 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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20. A method of correlating a first coordinate system of a first tracking system and a second coordinate system of a second tracking system, comprising:
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synchronously collecting a first registration position data with the first tracking system having a first coordinate system and a second registration position data with the second tracking system having a second coordinate system; transforming the first registration position data collected with the first tracking system relative to the second registration position data collected with the second tracking system; collecting a first set of position data with the first tracking system and a second set of position data with the second tracking system; determining a plurality of vectors, wherein one vector is determined between each synchronously related position data in the first set and the second set; generating a look-up table of the determined vectors; and interpolating position data collected with the first tracking system to register the first coordinate system to the second coordinate system of the second tracking system. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of correlating a first coordinate system of a first tracking system and a second coordinate system of a second tracking system, comprising:
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obtaining image data of a patient having an image data coordinate system; registering the image data coordinate system with the second coordinate system of the second tracking system, wherein the second coordinate system of the second tracking system is substantially Euclidean and generated by an electromagnetic localizer; synchronously collecting a first position data with the first tracking system and a second position data with the second tracking system; determining a transformation between the first position data and the second position data; synchronously collecting a plurality of third position data with the first tracking system and a plurality of fourth position data with the second tracking system; determining a plurality of vectors between synchronously related third position data and fourth position data; generating a three-dimensional look-up table of the determined vectors; collecting fifth position data with the first tracking system; and interpolating the fifth position data relative to the second coordinate system to relate the fifth position data to the registration of the second coordinate system and the image coordinate system. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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Specification