Systems and methods for quantification of an influence of scattered radiation in the analysis of an object a projection image is provided. Based on the projection image and on a characteristic of a tomography facility and/or of the object relating to the influence of the scattered radiation, at least one intermediate image is created. The at least one intermediate image is analyzed using an artificial neural network to quantify the influence of the scattered radiation.

The invention refers to an apparatus for monitoring a subject (121) during an imaging procedure, e.g. CT-imaging The apparatus (110) comprises a monitoring image providing unit (111) providing a first monitoring image and a second monitoring image acquired at different support positions, a monitoring position providing unit (112) providing a first monitoring position of a region of interest in the first monitoring image, a support position providing unit (113) providing support position data of the support positions, a position map providing unit (114) providing a position map mapping calibration support positions to calibration monitoring positions, and a region of interest position determination unit (115) determining a position of the region of interest in the second monitoring image based on the first monitoring position, the support position data, and the position map. This allows to determine the position of the region of interest accurately and with low computational effort.

A computed tomographic (CT) system includes a gantry having a rotating part including a light source, a light source drive control circuit, a rechargeable battery, and a rotating part interface. The gantry includes a detector, a detector control and signal processing circuit, and an image memory. The rotating part may rotate around a central axis. The CT system includes a gantry table on which the gantry is mounted and which includes a host interface. The CT system includes a motor that may cause the gantry to move within a gantry moving range, and a control unit that may process and display image data obtained from the gantry. The rotating part interface may face the host interface, such that the rotating part and host interfaces are configured to be electrically connected with each other, based on the gantry being at a predetermined position within the gantry moving range.

An X-ray diagnosis apparatus according to an embodiment includes an X-ray limiter having four diaphragm blades; and a console on which four physical operating units that correspond to the four diaphragm blades are placed at four positions. When viewed from the side of the operator of the console, the four operating units are placed on the far side, the near side, the left side, and the right side. The far-side operating unit, the near-side operating unit, the left-side operating unit, and the right-side operating unit correspond to the upper diaphragm blade, the lower diaphragm blade, the left-side diaphragm blade, and the right-side diaphragm blade, respectively, with reference to an X-ray image displayed in a display. An operation of moving the far-side operating unit in the far-side direction results in the movement of the upper diaphragm blade in the upward direction of the X-ray image displayed in the display, and an operation of moving the far-side operating unit in the near-side direction results in the movement of the upper diaphragm blade in the downward direction of the X-ray image displayed in the display. An operation of moving the near-side operating unit in the far-side direction results in the movement of the lower diaphragm blade in the upward direction of the X-ray image displayed in the display, and an operation of moving the near-side operating unit in the near-side direction results in the movement of the lower diaphragm blade in the downward direction of the X-ray image displayed in the display. An operation of moving the left-side operating unit in the leftward direction results in the movement of the left-side diaphragm blade in the leftward direction of the X-ray image displayed in the display, and an operation of moving the left-side operating unit in the rightward direction results in the movement of the left-side diaphragm blade in the rightward direction of the X-ray image displayed in the display. An operation of moving the right-side operating unit in the leftward direction results in the movement of the right-side diaphragm blade in the leftward direction of the X-ray image displayed in the display, and an operation of moving the right-side operating unit in the rightward direction results in the movement of the right-side diaphragm blade in the rightward direction of the X-ray image displayed in the display.

The disclosure relates to a system and method for medical imaging. The method may include: move, by a motion controller, a phantom along an axis of a scanner to a plurality of phantom positions; acquire, by a scanner of the imaging device, a first set of PET data relating to the phantom at the plurality of phantom positions; and store the first set of PET data as an electrical file. The length of an axis of the phantom may be shorter than the length of an axis of the scanner, and at least one of the plurality of phantom positions may be inside a bore of the scanner.

The present disclosure relates to a method, system and non-transitory computer readable medium. In some embodiments, the method includes: acquiring image data of a target subject positioned on a scanning table of an imaging device; determining, by a processor, first position information of the target subject by inputting the image data into a first machine learning model, the first position information of the target subject including a posture of the target subject relative to the imaging device; determining, by the processor, second position information related to a scan region of the target subject by inputting the image data into a second machine learning model, the second position information including a position of the scan region relative to the scanning table and the imaging device; and causing the imaging device to scan the target subject based on the first position information and the second position information.

A registration fixture or plate is configured for use with a medical imaging system. The registration fixture may be an optical magnetic registration plate including a plurality of fiducial markers in arranged in a predefined unique pattern. The pattern can be unambiguously detected on 2D image of the plate produced by the medical imaging system. Association of the 2D imaged pattern of fiducial markers with the actual 3D pattern on the optical magnetic registration plate allows for accurate calculation of projection matrices and co-registration of the 3D and 2D coordinate systems.

A system and method for the placement of a portable x-ray cassette is disclosed herein. In some embodiments, the system comprises a planar cassette element, a fabric, a collar element and a rigid sheet. The planar cassette element includes a hollow cavity disposed on a leading edge thereof and the fabric is configured to dispense from the hollow cavity, surround the planar cassette element and slide about the planar cassette element away from and toward the leading edge of the cassette element. The system allows for easy positioning of the portable x-ray cassette underneath a patient to be x-rayed.

The method includes: providing a body value of a patient; setting an operating parameter of a drive chain via a control unit configured to control the drive chain as a function of the body value in such a manner that a speed value of the patient couch is increased and a rocking of the patient couch during the movement of the patient couch is at least partially suppressed; and moving the patient couch via the drive chain in accordance with the increased speed value to perform the medical imaging.

An X-ray imaging system using multiple puked X-ray sources to perform highly efficient and ultrafast 3D radiography is presented. There are multiple puked X-ray sources mounted on a structure in motion to form an array of sources. The multiple X-ray sources move simultaneously relative to an object on a pre-defined arc track at a constant speed as a group. Electron beam inside each individual X-ray tube is deflected by magnetic or electrical field to move focal spot a small distance. When focal spot of an X-ray tube beam has a speed that is equal to group speed but with opposite moving direction, the X-ray source and X-ray flat panel detector are activated through an external exposure control unit so that source tube stay momentarily standstill equivalently. 3D scan can cover much wider sweep angle in much shorter time and image analysis can also be done in real-time.