Abstract: Methods, systems, and apparatus for image processing are provided. In one aspect, a method includes: acquiring an image to be processed that involves a target object, extracting image noise information and contour information of the target object from the image to be processed, generating a noise distribution image based on the image noise information and the contour information of the target object, and obtaining a target image by performing noise reduction on the image to be processed with the noise distribution image.

Abstract: A controlling apparatus is provided. According to an example, the controlling apparatus comprises: an operating body configured to bear acting forces; a mechanical sensing apparatus arranged on a surface of the operating body and configured to sense the acting forces and convert the acting forces into electric signals; and a controlling module configured to determine a resultant force of the acting forces according to the electric signals and control a controlled object to move along a direction of the resultant force of the acting forces.

Abstract: Methods, systems, devices and storage mediums for angiography are provided. In one aspect, a method includes: obtaining a first contrast image sequence collected by a X-ray detector of a DSA system at a first position; obtaining a flow path of a contrast medium by analyzing the first contrast image sequence; when the contrast medium is about to flow out of a collection area of the X-ray detector according to the flow path, controlling the X-ray detector to move to a second position, so that the contrast medium remains within the collection area; when the X-ray detector is located at the second position, obtaining a virtual mask image based on a last frame of the first contrast image sequence and a first frame of a second contrast image sequence collected by the X-ray detector at the second position; and generating a DSA image sequence by using the virtual mask image.

Abstract: The present disclosure discloses a medical imaging device including a gantry and a first C-arm having an imaging chain. The gantry includes a first supporting arm connecting the first C-arm, a base, a second C-arm connecting the base, and a second supporting arm connecting the second C-arm. The first C-arm may be moveable along the first supporting arm and the second supporting arm may be movable along the second C-arm.

Abstract: A Computed Tomography (CT) machine and a rotator thereof are provided. The rotator includes a rotating base with a scanning hole, a reinforcement with an axial through hole, and a load-carrying part for carrying scanning parts. The reinforcement is of a circumferentially closed structure. The axial through hole communicates with the scanning hole in a way that the reinforcement does not axially block the scanning hole. The load-carrying part is mounted on an external peripheral surface of the rotating base, and an axial end of the load-carrying part is connected with the reinforcement.

Abstract: Methods, devices and a machine-readable storage medium for denoising a Computed Tomography (CT) image are provided. In one aspect, a method of denoising a CT image includes: generating an original CT image according to raw data which is obtained by scanning a subject, where a pixel count of the original CT image is greater than a preset target pixel count; obtaining a denoised image by denoising the original CT image; and obtaining a target image as a CT image of the subject by compressing the denoised image to the preset target pixel count based on an interpolation algorithm.

Abstract: A mechanical linkage system of PET and CT/MRI and a linkage scanning method thereof are disclosed. According to an example of the disclosure, the mechanical linkage system includes a PET host, a CT/MRI host, a scanning bed, and a moving system. The PET host includes a PET detector installed in a PET detector fixing plate and configured to form a positron emission computed tomography image. The CT/MRI host has a larger aperture than the PET detector. A front end of the PET host and a front end of the CT/MRI host are oppositely disposed. The scanning bed is located to an end of the CT/MRI host. The moving system is connected with at least one of the PET host or the CT/MRI host and configured to move the PET detector into or out of a scanning field of view of the CT/MRI host.

Abstract: A method and a device for processing metal artifacts in a CT image are provided. In an example, the method includes: a first image is obtained before a metal probe is intervened; second raw data and a second image corresponding to the second raw data are obtained after the metal probe is intervened; a third image of a metal region in the second image is obtained; channels corresponding to the metal region are determined; CT values of the metal region in the second image are set to a preset value to obtain a model image and model raw data corresponding to the model image; data at the channels in the second raw data is replaced with data at the channels in the model raw data to obtain a replaced second raw data; and based on the replaced second raw data and the third image, a target image is obtained.

Abstract: An imaging method is provided. In an example, the imaging method includes a first X-ray image including a ROI of a subject is taken by an image capturing device, a position of the ROI in the first X-ray image is determined, a moving distance and a moving direction for a positioning system is determined based on the position of the ROI in the first X-ray image, and the positioning system is capable of being moved to adjust a positional relationship between the image capturing device and the subject, the positioning system is moved based on the moving distance and the moving direction, and a second X-ray image including the ROI is taken by the image capturing device, and the ROI is located in a center position of the second X-ray image.

Abstract: The present disclosure discloses medical imaging devices and suspension gantries thereof. An example medical imaging device includes a suspension gantry and a rotatable C-arm which is connected with the suspension gantry and provided with an imaging chain. The suspension gantry includes a suspension base, a first rotating arm configured to be connected to the suspension base and rotatable around a first axis, and a second rotating arm configured to be connected to the first rotating arm and rotatable around a second axis. The rotatable C-arm is configured to be connected with the second rotating arm and be rotated around a third axis.

Abstract: A filter set of a CT scanning device and control method thereof are provided. An example of the CT scanning device includes a gantry, an X-ray generator, a filter set, a detector, and a drive motor. The filter set includes a disc, a filter disposed on the disc and having a substantially annular groove structure, and a drive shaft connected to the disc. A body thickness of the annular groove structure varies in a circumferential direction and a radial direction. A shaft axis of the drive shaft is parallel to a radiation direction of X-ray. As the drive shaft is driven by the drive motor, the disc rotates around the shaft axis, such that a region of the filter is aligned with the radiation direction of the X-ray, and a body thickness of the region corresponds to a respective X-ray attenuation for an examination region of a subject.

Abstract: Imaging devices and medical apparatuses are provided. The imaging device comprises a first cantilever, a second cantilever and an aligning and locking device where the second cantilever is separably connected with the first cantilever, and the aligning and locking device is provided at a connection of the first cantilever and the second cantilever and comprises a positioning groove, a positioning block and a locking member. The positioning groove is concavely provided on one of the first cantilever and the second cantilever and the positioning block is convexly provided on the other and extendable into the positioning groove to cooperate with the positioning groove for positioning. A locking groove is concavely provided in the positioning block. The locking member is movably provided in the cantilever on which the positioning groove is provided, and may insert into the locking groove to cooperate with the locking groove for locking.

Abstract: An imaging system is provided. The imaging system comprises a first imaging device and a second gantry. The first imaging device comprises a first gantry, a first X-ray source provided on the first gantry and a first detector that is opposed to the first X-ray source and provided on the first gantry. The first imaging device is used to execute a first imaging mode. The second gantry is separably connected with the first gantry, and executes a second imaging mode combined.

Abstract: A display method and display apparatus are provided. The display method includes: an image to be viewed is activated; an instructing operation from a user is monitored; a Tools menu associated with the activated image is displayed according to a first instructing operation; options in the Tools menu are toggled according to a second instructing operation for the Tools menu; an option from the toggled options is selected according to a user operation; and the activated image is displayed according to the selected option.

Abstract: A method of selecting a slice configuration of a medical imaging apparatus is provided. The method includes: picking out two or more candidate slice configurations from available slice configurations of the medical imaging apparatus; determining a scan dose corresponding to each of the two or more candidate slice configurations; and selecting a candidate slice configuration corresponding to a minimum scan dose as a target slice configuration, where the target slice configuration is used for a current scan protocol.

Abstract: An imaging device and a gantry thereof are provided. An imaging device comprises a bracket, a cantilever, an X-ray source, a detector, a sliding strip and a sliding contact piece. The cantilever is slidably mounted on the bracket. The X-ray source is provided on the cantilever and the detector is opposite to the X-ray source and provided on the cantilever. The sliding strip is provided at an outer side of the cantilever, extends along the cantilever, and is electrically connected with the X-ray source and the detector. The sliding contact piece is fixed to the bracket and is in slidable electrical contact with the sliding strip. Another imaging device comprises a first gantry, a second gantry, a sliding strip and a sliding contact piece.

Abstract: The present disclosure provides a sampling method and sampling apparatus of a scanning device. In at least one example, the sampling method comprises acquiring a ray attenuation variation at each of a plurality of scanning angles of the scanning device, determining a corrected sampling interval at each of the scanning angles of the scanning device by adjusting an initial sampling interval at each of the scanning angles of the scanning device according to the ray attenuation variation at each of scanning angles, and performing actual sampling according to the corrected sampling interval at each of the scanning angles of the scanning device.