Matching Geometry Generation And Display Of Mammograms And Tomosynthesis Images
7 Assignments
0 Petitions
Accused Products
Abstract
A method and a system for using tomosynthesis projection images of a patient'"'"'s breast to reconstruct slice tomosynthesis images such that anatomical structures that appear superimposed in a mammogram are at conforming locations in the reconstructed images.
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Citations
40 Claims
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1-21. -21. (canceled)
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22. A method comprising:
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acquiring several 2D x-ray tomosynthesis projection images Tp of a patient'"'"'s breast taken at respective different angles of an imaging x-ray beam relative to the breast; computer-processing the projection images Tp into reconstructed slice images Tr representing respective 3D slices of the breast; each of said slice images Tr comprising respective pixel values of a respective array of pixels; wherein the pixels of at least one of said slice images Tr represent respective slice volumes that differ in size from those represented by the pixels of at least another one of said slice images Tr at least in planes to which said slices conform; and selectively displaying said slice images Tr on a computer display unit. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A method comprising:
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acquiring several 2D x-ray tomosynthesis projection images Tp of a patient'"'"'s breast taken at different angles of an imaging x-ray beam relative to the breast; computer-processing the projection images Tp into reconstructed slice images Tr representing respective 3D slices of the breast; each of said slice images Tr comprising respective pixel values of a respective array of pixels; wherein the pixels of at least one of said slice images Tr have different pixel spacing from the pixels of at least another one of said images Tr; and selectively displaying said slice images Tr on a computer display unit.
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31. A method comprising:
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acquiring several 2D x-ray tomosynthesis projection images Tp of a patient'"'"'s breast taken at different angles of an imaging x-ray beam relative to the breast; computer-processing the projection images Tp into reconstructed slice images Tr representing respective 3D slices of the breast; said computer-processing comprising first reconstructing said projection images Tp into initial slice images Tr(i) in a first coordinate system and then computer-processing the initial slice images Tr(i) into a second, different coordinate system to generate said slice images Tr; and selectively displaying said slice images Tr on a computer display unit. - View Dependent Claims (32, 33, 34, 35)
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36. An x-ray system comprising:
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a data acquisition unit using x-rays emanating from an origin and an x-ray receptor acquiring several projection tomosynthesis images Tp of a patient'"'"'s breast taken at different angles of the x-rays relative to the breast; an image reconstruction unit receiving the projection images Tp and reconstructing them into slice images Tr representing respective slices of the breast; each of said slice images Tr comprising respective pixel values representing a respective array of pixels; wherein the pixels of at least one of said slice images Tr represent voxels of the breast that differ in size from those represented by pixels in at least another one of said images Tr at least in planes to which the respective slices conform; and a display unit selectively displaying one or more of the slice images Tr, said display unit comprising a user interface controlling the display of said images Tr. - View Dependent Claims (37, 38, 39)
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40. An x-ray system comprising:
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a data acquisition unit using x-rays emanating from an origin and an x-ray receptor acquiring several projection tomosynthesis images Tp of a patient'"'"'s breast taken at different angles of the x-rays relative to the breast; an image reconstruction unit receiving the projection images Tp and reconstructing them into slice images Tr representing respective slices of the breast; each of said slice images Tr comprising respective pixel values representing a respective array of pixels; wherein the image reconstruction unit reconstructs said projection images Tp into initial slice images Tr(i) in a first coordinate system and then maps said initial slice images into said slice images Tr in a second, different coordinate system.
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Specification