Portable digital tomosynthesis imaging system and method
First Claim
1. A portable tomosynthesis imaging system comprising:
- a portable X-ray source assembly configured to direct X-ray radiation towards a subject from a plurality of different source positions;
a portable digital detector assembly configured to receive the radiation from the source and to remain stationary during receipt of the radiation from the plurality of different source positions;
a portable power supply for powering the X-ray source assembly;
control circuitry coupled to the X-ray source assembly and to the detector assembly and configured to control acquisition of projection image data sets for the plurality of different source positions for reconstruction of tomosynthesis images; and
means for transporting the source assembly, detector assembly, power supply and control circuitry to a non-dedicated imaging location.
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Abstract
A portable tomosynthesis imaging system is disclosed that includes a portable X-ray source assembly and a portable detector assembly. The source assembly may be coupled to a portable power supply and controller such that multiple projection X-ray images may be obtained at a site that is not accessible by conventional tomosynthesis imaging systems. Image data may be transmitted from the detector by wired or wireless communication. Tomosynthesis image reconstruction may be performed locally at the portable system or remotely by the transmission of raw or filtered image data from the portable system. The portable system is particularly well-suited to field deployment, such as at accident scenes, scenes of natural or other disasters, or in confined clinical settings.
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Citations
28 Claims
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1. A portable tomosynthesis imaging system comprising:
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a portable X-ray source assembly configured to direct X-ray radiation towards a subject from a plurality of different source positions; a portable digital detector assembly configured to receive the radiation from the source and to remain stationary during receipt of the radiation from the plurality of different source positions; a portable power supply for powering the X-ray source assembly; control circuitry coupled to the X-ray source assembly and to the detector assembly and configured to control acquisition of projection image data sets for the plurality of different source positions for reconstruction of tomosynthesis images; and means for transporting the source assembly, detector assembly, power supply and control circuitry to a non-dedicated imaging location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable tomosynthesis imaging system comprising:
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a portable X-ray source assembly configured to direct X-ray radiation towards a subject from a plurality of different source positions, wherein the source positions form an angle of between approximately 5 and 120 degrees with respect to the detector; a portable digital detector assembly not mounted on any common structure with the X-ray source assembly, the detector assembly being configured to receive the radiation from the source and to remain stationary during receipt of the radiation from the plurality of different source positions; a portable power supply for powering the X-ray source assembly; control circuitry coupled to the X-ray source assembly and to the detector assembly and configured to control acquisition of projection image data sets for the plurality of different source positions for reconstruction of tomosynthesis images; and at least one carrier for transporting the source assembly, detector assembly, power supply and control circuitry to a non-dedicated imaging location. - View Dependent Claims (16, 17)
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18. A tomosynthesis imaging system for generating tomosynthesis image data at a non-dedicated imaging location comprising:
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an X-ray source assembly configured to direct X-ray radiation towards a subject from a plurality of different source positions; a digital detector assembly configured to receive the radiation from the source; a power supply for powering the X-ray source assembly; means for detecting positions of the source assembly and detector assembly with respect to one another and for generating position data representative thereof, control circuitry coupled to the X-ray source assembly and to the detector assembly and configured to control acquisition of projection image data sets for the plurality of different source positions for reconstruction of tomosynthesis images based upon the projection image data sets and the position data; and means for transporting the source assembly, the detector assembly, the power supply, the means for detecting positions and the control circuitry to a non-dedicated imaging location.
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19. A method for generating tomosynthesis images at a non-dedicated imaging location comprising:
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positioning a portable X-ray source assembly adjacent to a subject, the source assembly being configured to direct X-ray radiation towards a subject from a plurality of different source positions; positioning a portable detector assembly adjacent to the subject opposite the source assembly, the detector assembly being configured to receive the radiation from the source and to remain stationary during receipt of the radiation from the plurality of different source positions; coupling a portable power supply to the X-ray source assembly; and commanding operation of the source assembly and the detector assembly via a portable controller to control acquisition of projection image data sets for the plurality of different source positions for reconstruction of tomosynthesis images. - View Dependent Claims (20, 21, 22, 23)
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24. A method for generating tomosynthesis images at a non-dedicated imaging location comprising:
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positioning a portable tomosynthesis system at a non-dedicated imaging location; verifying alignment of an X-ray source of the system with a digital detector; acquiring image data via the system; performing a quality verification of the image data; and optionally reacquiring image data based upon the quality verification. - View Dependent Claims (25, 26, 27, 28)
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Specification