X-ray scatter reducing device for use with 2D mammography and tomosynthesis
First Claim
1. A multi-mode imaging apparatus comprising:
- an X-ray source operable in at least a mammography mode and a tomosynthesis mode;
a detector;
an anti-scatter grid positioned between the X-ray source and the detector, wherein the anti-scatter grid comprises a plurality of septa wherein at least one septa of the plurality of septa extends substantially parallel to a coronal plane of a subject during imaging by the X-ray source; and
a motor coupled to the anti-scatter grid and configured to selectively move the anti-scatter grid, wherein the anti-scatter grid is retracted out of a field of view of the X-ray source in the mammography mode, wherein the anti-scatter grid is configured to move at least partially within a field of view of the X-ray source in the tomosynthesis mode, and wherein during imaging by the X-ray source in the tomosynthesis mode, the anti-scatter grid is movable in a direction wherein the at least one septa maintains substantially parallel orientation to the coronal plane of the subject.
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Accused Products
Abstract
Systems and methods for reducing X-ray scatter during breast imaging, and more specifically during tomosynthesis imaging. In one embodiment, an anti-scatter grid having a plurality of septa may be configured to be positioned relative to an X-ray imaging device such that each septum of the plurality of septa extends along a direction substantially parallel to a coronal plane of a subject during imaging of the subject using the X-ray imaging device. The X-ray imaging device may be operable in a tomosynthesis mode for imaging of a breast of the subject and may include the anti-scatter grid disposed between a breast platform and the X-ray detector. The anti-scatter grid may be configured to move in a direction substantially parallel to a sagittal plane of the subject during tomosynthesis imaging.
79 Citations
20 Claims
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1. A multi-mode imaging apparatus comprising:
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an X-ray source operable in at least a mammography mode and a tomosynthesis mode; a detector; an anti-scatter grid positioned between the X-ray source and the detector, wherein the anti-scatter grid comprises a plurality of septa wherein at least one septa of the plurality of septa extends substantially parallel to a coronal plane of a subject during imaging by the X-ray source; and a motor coupled to the anti-scatter grid and configured to selectively move the anti-scatter grid, wherein the anti-scatter grid is retracted out of a field of view of the X-ray source in the mammography mode, wherein the anti-scatter grid is configured to move at least partially within a field of view of the X-ray source in the tomosynthesis mode, and wherein during imaging by the X-ray source in the tomosynthesis mode, the anti-scatter grid is movable in a direction wherein the at least one septa maintains substantially parallel orientation to the coronal plane of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multi-mode imaging apparatus comprising:
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an X-ray source operable in at least a mammography mode and a tomosynthesis mode; a detector; an anti-scatter grid positioned between the X-ray source and the detector, wherein the anti-scatter grid comprises a plurality of septa and at least one septa extends along a direction that is substantially parallel to a coronal plane of a subject during imaging by the X-ray source; and a rotary motor coupled to the anti-scatter grid and configured to selectively move the anti-scatter grid, wherein the anti-scatter grid is retracted out of a field of view of the X-ray source in the mammography mode and the anti-scatter grid is configured to move at least partially within a field of view of the X-ray source in the tomosynthesis mode. - View Dependent Claims (18, 19, 20)
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Specification