A device and methods for performing a simulated CT biopsy on a region of interest on a patient. The device comprises a gantry (22) configured to mount an x-ray emitter (24) and CT detector (26) on opposing sides of the gantry, a motor (28) rotatably coupled to the gantry such that the gantry rotates horizontally about the region of interest, and a high resolution x-ray detector (172) positioned adjacent the CT detector in between the CT detector and the x-ray emitter.

A computer tomograph (1) for mammographic x-ray imaging includes a MBFEX tube (20) and a flat-bed x-ray detector (30). Cathodes (40) are arranged in a fixed manner in rows in the MBFEX tube (20), the cathodes (40) being provided for the field emission of electrons. Geometry, radiation density and wavelength range of an x-ray beam (b) can be set. The MBFEX tube (20) is movable parallel (z) to the flat-bed x-ray detector (30). The flat bed x-ray detector (30) includes a moveable x-ray screen (31), the opening of which can be set. Using the x-ray screen (31), an imaging area (A) on the detector surface (D) of the flat-bed x-ray detector (30) can be selected and moved. Compared to conventional computer tomographs having rotating x-ray components, the computer tomograph (1) has a lighter and more compact design, with which a particularly small focal spot size is achieved.

An apparatus to perform a CT scan of an object of interest with a reduced radiation dose including: an X-ray source configured to circularly rotate about the object of interest, the X-ray source configured to generate an X-ray beam; a detector assembly configured to move in tandem with the X-ray source on the opposite side of the X-ray source with respect to the object of interest, wherein the detector assembly is fixed with respect to the X-ray source and configured to detect the X-ray beam on a side of the object of interest opposite to the X-ray source after the X-ray beam passes through the object of interest; a 6-DOF collimator coupled to the X-ray source and comprising a plate with a hole disposed within the plate, wherein an aperture of the X-ray beam is dynamically adjusted by controlling a 3-D pose of the plate.

The present invention relates to a radiographic apparatus and a radiographic method using the same. More particularly, the present invention relates to the radiographic apparatus for generating an image of an object using radiation and a radiographic method using the same. According to an embodiment of the present invention, the radiographic apparatus includes: a radiation irradiating unit having a plurality of radiation sources and irradiating the object with radiation emitted from each of the plurality of radiation sources; a driving unit for moving the radiation irradiating unit; and a radiation detector for detecting the radiation passing through the object to acquire a plurality of radiation images.

System and method of more efficiently identifying and segmenting anatomical structures from 2-D cone beam CT images, rather than from reconstructed 3-D volume data, is disclosed. An image processing system receives, from a cone beam CT device, at least one 2-D x-ray image, which is part of a set of x-ray images taken from a 360 degree scan of a patient with a cone beam CT imaging device. The x-ray image contains at least one anatomical structure such as vertebral bodies to be segmented. The received x-ray is then analyzed in order to identify and segment the anatomical structure contained in the x-ray image based on a stored model of anatomical structures. Once the 360 degree spin is completed, a 3-D image volume from the x-ray image set is created. The identification and segmentation information derived from the x-ray image is then added to the created 3-D image volume.

A multimodal imaging apparatus, comprising a rotatable gantry system positioned at least partially around a patient support, a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation, a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level more than the first source of radiation, and a second radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the second source of radiation, and a processor configured to combine first measured projection data based on the radiation detected by the first detector with second measured projection data based on the radiation detected by the second detector, and reconstruct an image based on the combined data, wherein the reconstructing comprises at least one of correcting the second measured projection data using the first measured projection data, correcting the first measured projection data using the second projection data, and distinguishing different materials imaged in the combined data using the first measured projection data and the second measured projection.

A computed tomography (CT) imaging system and method, wherein the system includes an x-ray source that is operable to emit a beam of x-rays from a focal spot and move a spot position of the focal spot. The system also includes a detector assembly that is configured to detect the x-rays attenuated by the object. At least one processing unit is configured to execute programmed instructions stored in memory. The at least one processing unit is configured to direct the x-ray source to emit different beams of the x-rays at different energy levels and to receive data from the detector assembly that are representative of detection of the x-rays emitted at the different energy levels. The at least one processing unit is also configured to direct the x-ray source to move the focal spot such that the focal spot is at different spot positions while the different beams are emitted.

A device and methods for performing a simulated CT biopsy on a region of interest on a patient. The device comprises a gantry configured to mount an x-ray emitter and CT detector on opposing sides of the gantry, a motor rotatably coupled to the gantry such that the gantry rotates horizontally about the region of interest, and a high resolution x-ray detector positioned adjacent the CT detector in between the CT detector and the x-ray emitter.

Provided are an X-ray CT apparatus and a control method of the same capable of reducing focal blur even in a case where an X-ray focal spot is moved.

There is provided an X-ray CT apparatus including: an X-ray tube including a cathode that generates an electron beam and an anode that collides with the electron beam to radiate an X-ray; an X-ray detector configured to detect the X-ray; a rotating plate configured to rotate the X-ray tube and the X-ray detector around a subject; and an image processing unit configured to generate a tomographic image of the subject based on projection data acquired by the X-ray detector during rotation of the rotating plate, in which the cathode, which has a plurality of electron sources that are arranged within a plane facing the anode and emit the electron beam, is configured such that a position of an electron source, from which an electron beam is to be emitted, is selectively controlled based on a target position of an X-ray focal spot in the anode.

The invention relates to a method and apparatus for determining actual points along a positively charged particle beam path and/or vectors of the charged particle beam path, where the determined points and vectors aid tomographic construction of a three-dimensional image of a tumor and surrounding tissue. Further, the determined points and vectors of the positively charged particle beam are used in beam control safety, to modify a tumor treatment plan in real time, and/or in combination with co-gathered X-ray images to form a hybrid proton tomographyX-ray three-dimensional image. Preferably, common elements, such as an injector, accelerator, beam transport system, and/or patient positioning system are used for both tumor treatment and tumor imaging.