Tomosynthesis dataset generation using pre-exposure acquisition
AssigneeGE Precision Healthcare LLC
InventorsSylvain Bernard, Remy Klausz, Veronique Felix, Xavier Mancardi
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Abstract
Systems and methods for synthesizing a two-dimensional (2D) image of an organ of a patient by obtaining an pre-exposure x-ray image of the organ in order to ascertain parameters needed for acquisition of 2D (tomosynthesis) projection images of the organ, imaging the organ to obtain a plurality of 2D (tomosynthesis) projection images of the organ, and generating a synthetic 2D image of the organ from a combination of both the plurality of tomosynthesis projection images and the pre-exposure x-ray image.
Claims22
A method of generating a synthesized 2D image of an organ of a patient, the method comprising:
- obtaining a pre-exposure image of the organ by exposing the organ with x-ray energization;
- obtaining, based upon the pre-exposure image acquired, a plurality of two-dimensional (2D) tomosynthesis projection images of the organ by rotating the x-ray emitter to a plurality of orientations relative to the organ and emitting x-ray energization from the emitter for each projection image of the plurality of projection images;
- and
- generating a synthetic 2D image of the organ from the pre-exposure image and the plurality of tomosynthesis projection images.
A method of generating a synthesized 2D image of an organ of a patient, the method comprising:
- obtaining a pre-exposure image of the organ by exposing the organ with x-ray energization;
- obtaining, based on the pre-exposure image acquired, a plurality of two-dimensional (2D) tomosynthesis projection images of the organ by rotating the x-ray emitter to a plurality of orientations relative to the organ and emitting x-ray energization from the emitter for each projection image of the plurality of projection images;
- reconstructing a 3D volume using the 2D tomosynthesis projection images and the pre-exposure image;
- and
- generating a synthesized 2D image from the reconstructed 3D volume.
The method of 10 further comprising:
- extracting areas of the 3D volume;
- and
- enhancing the pre-exposure image with the areas extracted from the 3D volume.
A system for synthesizing a 2D radiographic image, the system comprising:
- an x-ray emitter capable of producing x-rays, the x-ray emitter being rotatable to a plurality of orientations;
- an x-ray detector in at least partial alignment with the x-ray emitter;
- a processor operably connected to the x-ray emitter and the x-ray detector, the processor operates the x-ray emitter and detector to acquire a pre-exposure image of the organ and subsequently, based on the pre-exposure image acquired, operates the x-ray emitter and detector to rotate about an organ to be imaged in order to obtain a plurality of two-dimensional (2D) tomosynthesis projection images of the organ, wherein the processor synthesizes a 2D image from the pre-exposure image and the plurality of tomosynthesis projection images;
- and
- a display for displaying the synthesized 2D image.
Dependencies are inferred from the claim text.