Image-based characterization of implanted medical leads
First Claim
1. A method comprising:
- obtaining, with an image processing system, a two dimensional (2D) image of electrodes on a lead implanted within a patient;
determining, with the image processing system, actual 2D coordinates of the electrodes in the 2D image;
obtaining, with the image processing system, 2D coordinates projected from 3D coordinates of electrodes on a selected type of lead, wherein the 2D coordinates projected from the 3D coordinates of the electrodes on the selected type of lead comprise calculated 2D coordinates of the electrodes on the selected type of lead as the electrodes on the selected type of lead would appear on the 2D image of the electrodes on the lead implanted within the patient;
comparing, with the image processing system, the projected 2D coordinates to the actual 2D coordinates; and
determining, with the image processing system, a characterization of the implanted lead based on the comparison.
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Abstract
The disclosure relates to image-based characterization of implanted medical leads used for electrical stimulation therapy. Characterization of implanted leads may include determination of lead configuration and lead orientation. The lead characterization techniques may make use of two-dimensional (2D) lead imaging in combination with known three-dimensional (3D) lead configuration data for various lead types. Lead characteristics determined from 2D lead imaging may be compared to lead dimensions calculated from known 3D lead characteristics to characterize implanted leads in terms of lead configuration and orientation. The lead characterization may be used to automatically determine or verify led configuration and orientation, and to aid in programming electrical stimulation therapy parameters.
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Citations
42 Claims
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1. A method comprising:
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obtaining, with an image processing system, a two dimensional (2D) image of electrodes on a lead implanted within a patient; determining, with the image processing system, actual 2D coordinates of the electrodes in the 2D image; obtaining, with the image processing system, 2D coordinates projected from 3D coordinates of electrodes on a selected type of lead, wherein the 2D coordinates projected from the 3D coordinates of the electrodes on the selected type of lead comprise calculated 2D coordinates of the electrodes on the selected type of lead as the electrodes on the selected type of lead would appear on the 2D image of the electrodes on the lead implanted within the patient; comparing, with the image processing system, the projected 2D coordinates to the actual 2D coordinates; and determining, with the image processing system, a characterization of the implanted lead based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41)
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14. An image processing device comprising:
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an image buffer that obtains and stores a two dimensional (2D) image of electrodes on a lead implanted within a patient; an image analysis unit that determines actual 2D coordinates of the electrodes in the 2D image; a memory that stores the actual 2D coordinates; and a processor that; obtains 2D coordinates projected from 3D coordinates of electrodes on a selected type of lead, wherein the 2D coordinates projected from the 3D coordinates of the electrodes on the selected type of lead comprise calculated 2D coordinates of the electrodes on the selected type of lead as the electrodes on the selected type of lead would appear on the 2D image of the electrodes on the lead implanted within the patient, compares the projected 2D coordinates to the actual 2D coordinates, and determines a characterization of the implanted lead based on the comparison. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 42)
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29. A system comprising:
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means for obtaining a two dimensional (2D) image of electrodes on a lead implanted within a patient; means for determining actual 2D coordinates of the electrodes in the 2D image; means for obtaining 2D coordinates projected from 3D coordinates of electrodes on a selected type of lead, wherein the 2D coordinates projected from the 3D coordinates of the electrodes on the selected type of lead comprise calculated 2D coordinates of the electrodes on the selected type of lead as the electrodes on the selected type of lead would appear on the 2D image of the electrodes on the lead implanted within the patient; means for comparing the projected 2D coordinates to the actual 2D coordinates; and means for determining a characterization of the implanted lead based on the comparison. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A non-transitory computer-readable storage medium comprising instructions that cause one or more processors to:
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obtain a two dimensional (2D) image of electrodes on a lead implanted within a patient; determine actual 2D coordinates of the electrodes in the 2D image; obtain 2D coordinates projected from 3D coordinates of electrodes on a selected type of lead, wherein the 2D coordinates projected from the 3D coordinates of the electrodes on the selected type of lead comprise calculated 2D coordinates of the electrodes on the selected type of lead as the electrodes on the selected type of lead would appear on the 2D image of the electrodes on the lead implanted within the patient; compare the projected 2D coordinates to the actual 2D coordinates; and determine a characterization of the implanted lead based on the comparison. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification