Apparatus and method for automatic image guided accuracy verification
First Claim
1. A method, comprising:
- receiving, during a first time interval, image data associated with a plurality of images of a dynamic body, the plurality of images including an indication of a position of a first marker on a garment coupled to the dynamic body and a position of a second marker on the garment coupled to the dynamic body, the first marker coupled to the garment at a first location, the second marker coupled to the garment at a second location, the first time interval associated with a path of motion of the dynamic body and wherein the first and second markers change in orientation relative to each other during the first time interval;
receiving, during a medical procedure performed during a second time interval after the first time interval, data associated with a position of a first localization element relative to the dynamic body, and data associated with a position of a second localization element relative to the dynamic body, the first localization element coupled to the garment at the first location, the second localization element coupled to the garment at the second location, the second time interval associated with a path of motion of the dynamic body and wherein the first and second localization elements change in orientation relative to each other during the second time interval;
automatically identifying, during the second time interval, an image from the plurality of images associated with a position of the first marker that is substantially the same as the position of the first localization element relative to the dynamic body and a position of the second marker that is substantially the same as the position of the second localization element relative to the dynamic body, wherein automatically identifying includes determining a measurement between the position of the first marker and the position of the second marker associated with the plurality of images during the first time interval using a selected cost-function;
applying the selected cost-function to the position of the first localization element and the position of the second localization element during the second time interval;
determining whether the position of the first localization element and the position of the second localization element during the second time interval is substantially the same as the position of the first marker and the position of the second marker, respectively, during the first time interval;
automatically computing a registration between the position of the first marker and the position of the second marker, and the position of the first localization element and the position of the second localization element, respectively; and
superimposing a position of a medical instrument onto an image display of the dynamic body from the first time interval.
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Accused Products
Abstract
A method includes receiving during a first time interval associated with a path of motion of a dynamic body, image data associated with a plurality of images of the dynamic body. The plurality of images include an indication of a position of a first marker coupled to a garment at a first location, and a position of a second marker coupled to the garment at a second location. The garment is coupled to the dynamic body. During a second time interval, an image from the plurality of images is automatically identified that includes a position of the first marker that is substantially the same as a position of a first localization element relative to the dynamic body and a position of the second marker that is substantially the same as a position of the second localization element relative to the dynamic body.
332 Citations
23 Claims
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1. A method, comprising:
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receiving, during a first time interval, image data associated with a plurality of images of a dynamic body, the plurality of images including an indication of a position of a first marker on a garment coupled to the dynamic body and a position of a second marker on the garment coupled to the dynamic body, the first marker coupled to the garment at a first location, the second marker coupled to the garment at a second location, the first time interval associated with a path of motion of the dynamic body and wherein the first and second markers change in orientation relative to each other during the first time interval; receiving, during a medical procedure performed during a second time interval after the first time interval, data associated with a position of a first localization element relative to the dynamic body, and data associated with a position of a second localization element relative to the dynamic body, the first localization element coupled to the garment at the first location, the second localization element coupled to the garment at the second location, the second time interval associated with a path of motion of the dynamic body and wherein the first and second localization elements change in orientation relative to each other during the second time interval; automatically identifying, during the second time interval, an image from the plurality of images associated with a position of the first marker that is substantially the same as the position of the first localization element relative to the dynamic body and a position of the second marker that is substantially the same as the position of the second localization element relative to the dynamic body, wherein automatically identifying includes determining a measurement between the position of the first marker and the position of the second marker associated with the plurality of images during the first time interval using a selected cost-function; applying the selected cost-function to the position of the first localization element and the position of the second localization element during the second time interval; determining whether the position of the first localization element and the position of the second localization element during the second time interval is substantially the same as the position of the first marker and the position of the second marker, respectively, during the first time interval; automatically computing a registration between the position of the first marker and the position of the second marker, and the position of the first localization element and the position of the second localization element, respectively; and superimposing a position of a medical instrument onto an image display of the dynamic body from the first time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-transitory processor-readable medium storing code representing instructions to cause a processor to perform a process, the code comprising code to:
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receive, during a first time interval, image data associated with a plurality of images of a dynamic body, the plurality of images including an indication of a position of a first marker on a garment coupled to the dynamic body and a position of a second marker on the garment coupled to the dynamic body, the first marker coupled to the garment at a first location, the second marker coupled to the garment at a second location, the first time interval associated with a path of motion of the dynamic body and wherein the first and second markers change in orientation relative to each other during the first time interval; receive, during a medical procedure performed during a second time interval after the first time interval, data associated with a position of a first localization element relative to the dynamic body, and data associated with a position of a second localization element relative to the dynamic body, the first localization element coupled to the garment at the first location, the second localization element coupled to the garment at the second location, the second time interval associated with a path of motion of the dynamic body and wherein the first and second localization elements change in orientation relative to each other during the second time interval; automatically identify, during the second time interval, an image from the plurality of images including a position of the first marker that is substantially the same as the position of the first localization element relative to the dynamic body and a position of the second marker that is substantially the same as the position of the second localization element relative to the dynamic body, wherein the automatic identification includes determining a measurement between the position of the first marker and the position of the second marker associated with the plurality of images during the first time interval using a selected cost-function; apply the selected cost-function to the position of the first localization element and the position of the second localization element during the second time interval; determine whether the position of the first localization element and the position of the second localization element during the second time interval is substantially the same as the position of the first marker and the position of the second marker, respectively, during the first time interval; automatically compute a registration between the position of the first marker and the position of the second marker, and the position of the first localization element and the position of the second localization element, respectively; and superimpose a position of a medical instrument on to an image display of the dynamic body from the first time interval. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method, comprising:
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receiving, during a first time interval, image data associated with a plurality of images of a dynamic body, the plurality of images including an indication of a position of a first marker coupled to the dynamic body and a position of a second marker coupled to the dynamic body, the first marker coupled to the dynamic body at a first location, the second marker coupled to the dynamic body at a second location, the first time interval associated with a path of motion of the dynamic body and wherein the first and second markers change in orientation relative to each other during the first time interval; receiving, during a medical procedure performed during a second time interval after the first time interval, data associated with a position of a first localization element relative to the dynamic body, and data associated with a position of a second localization element relative to the dynamic body, the first localization element coupled to the dynamic body proximate the first location, the second localization element coupled to the dynamic body proximate the second location, the second time interval associated with a path of motion of the dynamic body and wherein the first and second localization elements change in orientation relative to each other during the second time interval; automatically identifying during the second time interval an image from the plurality of images associated with a position of the first marker that is substantially the same as the position of the first localization element relative to the dynamic body and a position of the second marker that is substantially the same as the position of the second localization element relative to the dynamic body, wherein automatically identifying includes determining a measurement between the position of the first marker and the position of the second marker associated with the plurality of images during the first time interval using a selected cost-function; applying the selected cost-function to the position of the first localization element and the position of the second localization element during the second time interval; determining whether the position of the first localization element and the position of the second localization element during the second time interval is substantially the same as the position of the first marker and the position of the second marker, respectively, during the first time interval; automatically computing a registration between the position of the first marker and the position of the second marker, and the position of the first localization element and the position of the second localization element, respectively; and superimposing a position of a medical instrument on to an image display of the dynamic body from the first time interval.
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23. A method, comprising:
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receiving, during a first time interval, image data associated with a plurality of images of a dynamic body of a patient, the plurality of images including an indication of a position of a first marker on a garment coupled to the dynamic body and a position of a second marker on the garment coupled to the dynamic body, the first marker coupled to the garment at a first location, the second marker coupled to the garment at a second location, the first time interval associated with a path of motion of the dynamic body and wherein the first and second markers change in orientation relative to each other during the first time interval; receiving, during a medical procedure performed during a second time interval after the first time interval, data associated with a position of a first localization element relative to the dynamic body, and data associated with a position of a second localization element relative to the dynamic body, the first localization element coupled to the garment at the first location, the second localization element coupled to the garment at the second location, the second time interval associated with a path of motion of the dynamic body and wherein the first and second localization elements change in orientation relative to each other during the second time interval; automatically identifying, during the second time interval, an image from the plurality of images associated with a position of the first marker that is substantially the same as the position of the first localization element relative to the dynamic body and a position of the second marker that is substantially the same as the position of the second localization element relative to the dynamic body, wherein automatically identifying includes determining a ratio between a minimum and a maximum 3D distance between the position of the first marker and the position of the second marker associated with the plurality of images during the first time interval; correlating the ratio to the position of the first localization element and the position of the second localization element during the second time interval; determining whether the position of the first localization element and the position of the second localization element during a respiratory cycle of the patient during the second time interval is substantially the same as the position of the first marker and the position of the second marker, respectively, during a respiratory cycle of the patient during the first time interval; automatically computing a registration between the position of the first marker and the position of the second marker, and the position of the first localization element and the position of the second localization element, respectively; and gating navigation of a medical instrument during the second time interval based on the registration.
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Specification