Abstract: A method and device for X-ray scanning based on dose, comprising: receiving an X-ray dose for scanning set for a region of a subject to be scanned, selecting a scanning and reconstructing technology combination according to said pre-set X-ray dose for scanning wherein the demanded X-ray dose of the selected scanning and reconstructing technology combination satisfies said pre-set X-ray dose for scanning, and scanning said region and implementing a reconstruction accordingly with the selected scanning and reconstructing technology combination to obtain a resultant scanning image.

Abstract: A method for upgrading medical equipment is disclosed. The method may include: according to a first target upgrading identification in a software upgrading package, determining a first target equipment number corresponding to the first target upgrading identification. The table of upgrading identifications can include association between upgrading identifications and equipment numbers of the medical equipment. The method further includes sending the software upgrading package to a first target medical equipment corresponding to the first target equipment number to allow the first target medical equipment to upgrade itself according to the software upgrading package.

Abstract: A method for reconstructing a Computer Tomography (CT) image is disclosed. The method may comprise: obtaining a X-ray projection data frame and a dynamic sensor information data frame, wherein the X-ray projection data frame may include a first timestamp indicating acquisition time of X-ray projection data and the dynamic sensor information data frame may include a second timestamp indicating acquisition time of dynamic sensor information data; extracting the first timestamp from the X-ray projection data frame and extracting the second timestamp from the dynamic sensor information data frame; searching X-ray projection data and dynamic sensor information data which may be acquired in same sampling period according to a first timestamp and a second timestamp; and reconstructing a CT image according to the searched X-ray projection data and dynamic sensor information data which may be acquired in the same sampling period.

Abstract: Devices and methods of testing leaking rays are provided. In one aspect, a device includes a first rotary arm configured to rotate around a first rotary axis, a second rotary arm rotatably connected with the first rotary arm and configured to rotate around a second rotary axis, a probe mounted on a rotating end of the second rotary arm and configured to measure a numerical value of leaking rays at each position at which the probe stays, a mounting base rotatably connected with the second rotary arm and configured to mount a ray source component, a first driving unit configured to drive the first rotary arm to rotate around the first rotary axis, and a second driving unit configured to drive the second rotary arm to rotate around the second rotary axis, the first rotary axis being perpendicular to the second rotary axis.

Abstract: Methods and devices for reconstructing dual-energy CT images are provided. In one aspect, CT scan is performed with a high energy and a low energy periodical and alternatively changed on a scanning target, reconstruction data for a high-energy image of a current reconstruction position is obtained based on whether a circle of high-energy scan closest to the current reconstruction position of the scanning target is a full circle of scan, the high-energy image of the current reconstruction position is reconstructed according to the reconstruction data of the high-energy image; reconstruction data for a low-energy image of the current reconstruction position is obtained based on whether a circle of high-energy scan closest to the current reconstruction position of the scanning target is the full circle of scan, the low-energy image of the current reconstruction position is reconstructed according to the reconstruction data of the low-energy image.

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.

Abstract: An identification device for a part of a medical imaging apparatus includes: an identifier carrier fixed to a shell of the part and storing information of an identifier of the part, a housing configured to cover the identifier carrier, an image capturing component provided on the housing, and a processor configured to control the image capturing component to capture an image and acquire the identifier of the part based on a captured image. The processor is configured to perform deviation check on a current image captured by the image capturing apparatus currently and an initial image captured by the image capturing component previously and determine whether the identifier of the part has been tampered with or replaced based on a result of the deviation check.

Abstract: A method and device for adjusting a monitored region in a tracking scan, comprising: selecting a best match of a positioned image from tracked image(s) as a monitored layer image so as to reduce position deviation of the monitored layer image with respect to the positioned image in a direction perpendicular to a plane on which the positioned image is located; and adjusting a position of a second monitored region on the monitored layer image according to a position of a corresponding first monitored region selected from the positioned image so as to reduce position deviation of the second monitored region with respect to the first monitored region in a plane parallel to the plane on which the positioned image is located.

Abstract: A method and apparatus for correcting a focus of a CT device are provided. The method includes: calculating a total focus shift according to scanning data; and correcting, when the CT device is running, a deflection of an electron beam emitted from a ray source of the CT device, based on the total focus shift. The device includes: a shift calculation module, configured to calculate a total focus shift according to scanning data; and a shift correction module, configured to correct, when the CT device is running, a deflection of an electron beam emitted from a ray source of the CT device, based on the total focus shift.

Abstract: A method for sharing medical image data based on a cloud platform, a cloud platform and a system are disclosed. The cloud platform is connected to at least one medical imaging device. The method includes: receiving a medical image and/or scan data transmitted from the at least one medical imaging device; and storing, on the cloud platform, the medical image and/or scan data from the at least one medical imaging device.

Abstract: A method for upgrading medical equipment is disclosed. The method may include: according to a first target upgrading identification in a software upgrading package, determining a first target equipment number corresponding to the first target upgrading identification. The table of upgrading identifications can include association between upgrading identifications and equipment numbers of the medical equipment. The method further includes sending the software upgrading package to a first target medical equipment corresponding to the first target equipment number to allow the first target medical equipment to upgrade itself according to the software upgrading package.

Abstract: A method for reconstructing a Computer Tomography (CT) image is disclosed. The method may comprise: obtaining a X-ray projection data frame and a dynamic sensor information data frame, wherein the X-ray projection data frame may include a first timestamp indicating acquisition time of X-ray projection data and the dynamic sensor information data frame may include a second timestamp indicating acquisition time of dynamic sensor information data; extracting the first timestamp from the X-ray projection data frame and extracting the second timestamp from the dynamic sensor information data frame; searching X-ray projection data and dynamic sensor information data which may be acquired in same sampling period according to a first timestamp and a second timestamp; and reconstructing a CT image according to the searched X-ray projection data and dynamic sensor information data which may be acquired in the same sampling period.

Abstract: A method and an apparatus for controlling power distribution in a fixed capacity power grid are disclosed. A power request from a piece of user equipment can be received, wherein the power request can indicate an operating mode of the user equipment. A power demand capacity of the user equipment can be determined according to the operating mode. It can be determined whether the current available power capacity is larger than or equal to the power demand capacity of the user equipment.

Abstract: A method and device for adjusting a monitored region in a tracking scan, comprising: selecting a best match of a positioned image from tracked image(s) as a monitored layer image so as to reduce position deviation of the monitored layer image with respect to the positioned image in a direction perpendicular to a plane on which the positioned image is located; and adjusting a position of a second monitored region on the monitored layer image according to a position of a corresponding first monitored region selected from the positioned image so as to reduce position deviation of the second monitored region with respect to the first monitored region in a plane parallel to the plane on which the positioned image is located.

Abstract: A method and device for X-ray scanning based on dose, comprising: receiving an X-ray dose for scanning set for a region of a subject to be scanned, selecting a scanning and reconstructing technology combination according to said pre-set X-ray dose for scanning wherein the demanded X-ray dose of the selected scanning and reconstructing technology combination satisfies said pre-set X-ray dose for scanning, and scanning said region and implementing a reconstruction accordingly with the selected scanning and reconstructing technology combination to obtain a resultant scanning image.

Abstract: A method for compensating the sagging of a pallet of the patient table includes: detecting a degree of sagging of a position on the pallet where a scanning cross section is located; determining whether the degree of sagging is smaller than a predetermined degree, and ending the procedure if the degree of sagging is smaller than the predetermined degree; otherwise, determining an adjustment amount of the pallet according to the degree of sagging, and lifting the pallet according to the adjustment amount. An apparatus includes a detecting device; a lifting device; and a controller. If a detected value of the degree of sagging is smaller than a predetermined value, the controller ends the procedure; otherwise, the controller is configured to determine an adjustment amount of the pallet according to the degree of sagging, and control the lifting device to lift the pallet according to the adjustment amount.

Abstract: A method and apparatus for correcting a focus of a CT device are provided. The method includes: calculating a total focus shift according to scanning data; and correcting, when the CT device is running, a deflection of an electron beam emitted from a ray source of the CT device, based on the total focus shift. The device includes: a shift calculation module, configured to calculate a total focus shift according to scanning data; and a shift correction module, configured to correct, when the CT device is running, a deflection of an electron beam emitted from a ray source of the CT device, based on the total focus shift.

Abstract: A method for sharing medical image data based on a cloud platform, a cloud platform and a system are disclosed. The cloud platform is connected to at least one medical imaging device. The method includes: receiving a medical image and/or scan data transmitted from the at least one medical imaging device; and storing, on the cloud platform, the medical image and/or scan data from the at least one medical imaging device.

Abstract: A method and device for indicating a scanning condition and a scanning apparatus and scanning system related thereto are provided. The method includes: converting a scanning condition of a scanning apparatus into a control instruction for controlling a light strip to provide an indication; and executing the control instruction to control the light strip to provide the indication in the case of the scanning condition, wherein the light strip is mounted on an exterior of the scanning apparatus. Thus, the scanning condition of a scanning apparatus is converted into a control instruction for controlling the light strip to provide the indication, and the control instruction can be executed to control the light strip on the exterior of the scanning apparatus to indicate the scanning process when the scanning condition of the medical-scanning apparatus occurs.