Localization of a target using in vivo markers
First Claim
Patent Images
1. A method, comprising:
- imaging a plurality of markers in a first imaging modality, the plurality of markers residing internal to a body;
determining first coordinates of the plurality of markers relative to a first beam isocenter;
imaging the plurality of markers in a second imaging modality; and
determining second coordinates of the plurality of markers relative to a second beam isocenter.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method of localization of a target using in vivo markers is described. The method may include adjusting a position of a target volume within the body relative to a treatment beam using the in vivo markers.
168 Citations
55 Claims
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1. A method, comprising:
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imaging a plurality of markers in a first imaging modality, the plurality of markers residing internal to a body;
determining first coordinates of the plurality of markers relative to a first beam isocenter;
imaging the plurality of markers in a second imaging modality; and
determining second coordinates of the plurality of markers relative to a second beam isocenter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16)
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11. The method of claim 11, wherein the 3D geometric consistency test comprises an epipolar coincidence constraint.
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17. A method, comprising:
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providing a body having a plurality of internal markers; and
adjusting a position of a target volume within the body relative to a treatment beam using the plurality of internal markers. - View Dependent Claims (18, 19, 20)
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21. A method, comprising:
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providing an image containing a marker; and
filtering the image using a median filter. - View Dependent Claims (22, 23, 24, 25)
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26. A machine readable medium having stored thereon instructions, which when executed by a processor, cause the processor to perform the following comprising:
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receiving signals corresponding to pixel intensities of an image containing a marker; and
filtering the image using a median filter. - View Dependent Claims (27)
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28. A machine readable medium having stored thereon instructions, which when executed by a processor, cause the processor to perform the following comprising:
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performing a 2D size and shape consistency test of a region of interest of an image; and
performing a 3D geometric consistency test of the region of interest to identify one or more of a plurality of markers in the image. - View Dependent Claims (29, 30)
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31. A method, comprising:
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imaging one or more of a plurality of internal markers in a target volume of a body to generate an image, the target volume comprising a target; and
estimating an adjustment to at least one of the body and a treatment beam in, a treatment session, based on a rigidity of the target and a number of visible markers in the image. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 46, 47, 48)
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42. A method, comprising:
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imaging one or more of a plurality of internal markers in a target volume of a body to generate an image, the target volume comprising a target; and
estimating a number of positioning images needed for a treatment session based on a rigidity of the target and a number of visible markers in the image. - View Dependent Claims (43, 44, 45)
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49. An apparatus, comprising:
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means for imaging a plurality of markers in a first imaging modality, the plurality of markers residing internal to a body;
means for determining first coordinates of the plurality of markers relative to a first beam isocenter;
means for imaging the plurality of markers in a second imaging modality; and
means for determining second coordinates of the plurality of markers relative to a second beam isocenter - View Dependent Claims (50, 51, 52, 53)
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54. A system, comprising:
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a first beam source to generate an imaging beam having a first beam isocenter;
a second beam source to generate a treatment beam having a second beam isocenter;
a first imager coupled to receive the imaging beam, the first imager to image a plurality of markers, residing internal to a body, in a first imaging modality;
a second imager coupled to receive the treatment beam, the second imager to image the plurality of markers in a second imaging modality; and
a computer coupled to the first and second imagers, the computer to determine first coordinates of the plurality of markers relative to the first beam isocenter and determine second coordinates of the plurality of markers relative to the second beam isocenter. - View Dependent Claims (55)
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Specification