An X-ray imaging system includes an X-ray Talbot imaging device and an image processing device. The image processing device includes a hardware processor and a display. The hardware processor generates multiple types of reconstructed images based on each of moire images having different subject set angles captured by the X-ray Talbot imaging device; groups the reconstructed images by subject set angle and by type; detects, in each reconstructed image, a grating direction of the gratings and the subject set angle relevant to the grating direction; matches an image direction in each of the grouped reconstructed images with a reference direction based on the grating direction and the subject set angle; performs a same image adjustment process on the grouped reconstructed images; and causes the display to display the reconstructed images grouped by subject set angle or by type.

The invention relates to a phase contrast x-ray tomography device, comprising an electron gun (44) having a downstream deflector coil (52). The x-ray beam (56) is guided by the deflector coil (54) on a circular path over a target (58), which is marginally tilted towards a plane positioned vertically on the device axis. The x-ray beam (62) generated at focal spot F of the electron beam (56) crosses an object (70) and arrives at a detector line (68) via a phase grating (64) and an amplitude grating (66).

A tomography apparatus includes a multi-focal point x-ray source, a support to travel a trajectory path, a detector having a plurality of pixels, where one of the multi-focal point x-ray source, the detector, and an item-under-test move on the support. A control processor controls a change in the focal point of the x-ray source at discrete points, or continuously, within a measurement region, the focal point change in a direction retrograde to the support arm travel, a detector memory accumulates a digital value representative of a signal charge from at least a portion of the plurality of pixels, the control processor reconstructs a volumetric image of the item-under-test by processing the detector memory contents. A method for continuous tomosynthesis and a computer-readable medium are also disclosed.

A computed tomography (CT) apparatus to perform a CT scan with a reduced radiation, including: an X-ray source to direct a cone beam of X-rays toward a detector assembly with an object of interest situated between the source and the detector assembly; a multi-leaf collimator fixed with respect to the X-ray source and configured to dynamically limit the cone beam of X-rays directed toward the object of interest, the multi-leaf collimator comprising a plurality of leaflets to block impinging cone beam of X-rays; and the detector assembly to detect the directed X-ray beam on a side opposite to the X-ray source after the X-ray beam with the reduced solid angle passes through the object of interest.

A control unit of a radiation imaging apparatus performs control of moving a radiation source, and emitting radiation from the radiation source at a plurality of positions at which incidence angles of the radiation to a breast of a subject are different from each other. The control unit performs control of causing a radiation detector to detect the radiation emitted from the radiation source at the plurality of positions. The control unit performs control of moving the radiation source at a movement speed corresponding to a position of the radiation source for a subject face proximate position.

Systems/techniques that facilitate correction of intra-scan focal-spot displacement are provided. In various embodiments, a system can access a first gantry angle of a medical scanner. In various aspects, the system can determine a first displacement of a focal-spot of the medical scanner based on the first gantry angle, by referencing a mapping that correlates gantry angles to focal-spot displacements. In various instances, the system can compensate, via one or more focal-spot position adjusters of the medical scanner, for the first displacement.

Novel and advantageous systems and methods for performing X-ray imaging by using an X-ray source with source grating functionality incorporated therein are provided. An electron beam can be electromagnetically manipulated such that the X-ray source emits radiation in a pattern that is the same as if the radiation had already passed through a source grating.

A mobile radiography apparatus has a moveable (e.g., wheeled) transport frame and an adjustable column mounted at the frame. A boom apparatus supported by the adjustable column can support an x-ray source assembly. Radiation or X-ray source assembly methods and/or apparatus embodiments can provide mobile radiography carts a capability to direct x-ray radiation towards a subject from one or a plurality of different source positions, where the X-ray source assembly includes a first x-ray power source and a second plurality of distributed x-ray sources disposed in a prescribed spatial relationship.

A tomographic imaging system includes a source configured to irradiate an object; a first image sensor including a first semiconductor substrate having a first face upon which a monolithic first pixel array is located; and a gantry configured to hold the first image sensor and rotate the image sensor around the object about a first rotation axis, the first pixel array including a first plurality of pixels configured to receive light that travels through or from the object based on the irradiation, the first plurality of pixels of the first pixel array being arranged in one or more rows and a plurality of columns such that, a total number of the one or more rows is less than a total number of the plurality of columns, and the one or more rows extend in a first direction, the first image sensor being arranged such that an angle between the first direction and a second direction is greater than 45 degrees and equal to or less than 90 degrees, the second direction being a direction parallel to the rotation axis or a direction in which the object moves during analysis of the object by the imaging system.

A system and method are provided for medical imaging that includes acquiring, during a common imaging acquisition process, rotational, x-ray volume image data and x-ray tomosynthesis image data from a subject. The method includes reconstructing a time-resolved three-dimensional (3D) image volume from the rotational, x-ray volume image data and producing a four-dimensional (4D) image series of the subject with resolved overlapping features by selectively combining the time-resolved 3D image volume and the x-ray tomosynthesis imaging data.