System and method for generating a 2D image from a tomosynthesis data set
AssigneeHologic, Inc.
InventorsChris Ruth, Andrew Smith, Jay Stein
Life of this patent
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Abstract
A 2D mammogram image is synthesized from at least one of tomosynthesis projection images and/or the tomosynthesis reconstructed image data. In a simplest form, the mammogram may be synthesized by selecting one of the tomosynthesis projection images for display as a synthesized mammogram. Other methods of synthesizing a mammogram include re-projecting and filtering projection data and/or reconstructed data. The synthesized mammogram is advantageously displayed together with at least a portion of the reconstructed data to aid in review of the reconstructed data. The present invention thus provides a familiar image which may be used to facilitate review of a tomosynthesis data set.
Claims13
A method comprising:
- obtaining a plurality of x-ray tomosynthesis projection images of a patient's breast;
- reconstructing the plurality of x-ray tomosynthesis projection images into a three dimensional reconstructed image comprising a plurality of slices;
- and
- synthesizing a two-dimensional mammogram using at least a subset of the three-dimensional reconstructed image, wherein the step of synthesizing includes projecting at least one tomosynthesis slice image having a pixel spacing that differs from a pixel spacing of a mammogram onto a mammogram coordinate system;
- and
- displaying the synthesized mammogram on a display device.
A method comprising:
- obtaining a plurality of x-ray tomosynthesis projection images of a patient's breast;
- reconstructing the plurality of x-ray tomosynthesis projection images into a three dimensional reconstructed image comprising a plurality of slices, wherein the step of reconstructing the plurality of tomosynthesis projection images reconstructs the tomosynthesis projection images onto a first coordinate system to provide a three-dimensional reconstructed image and wherein the first coordinate system is selected from a group including a Cartesian coordinate system, a cone beam coordinate system and a coordinate system associated with a virtual acquisition system;
- synthesizing a two-dimensional mammogram using at least a subset of the three-dimensional reconstructed image;
- and
- displaying the synthesized mammogram on a display device.
Dependencies are inferred from the claim text.