Matching geometry generation and display of mammograms and tomosynthesis images
First Claim
Patent Images
1. A method comprising:
- 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 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.
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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.
224 Citations
13 Claims
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1. 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 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 (2, 3, 4, 5, 6, 7, 8)
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9. 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 at least in planes to which the slices conform; and selectively displaying said slice images Tr on a computer display unit.
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10. An x-ray system comprising:
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a data acquisition unit comprising an x-ray source selectively emitting x-rays 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; a computer-implemented 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 (11, 12, 13)
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Specification