1130results about "Radiation diagnostic device control" patented technology

Embodiments of the present disclosure provide a medical system and method. The medical system includes an equipment room, a plurality of medical rooms, the imaging device, and a plurality of shielding doors. The imaging device includes the movable imaging component. The movable imaging component is shared by the plurality of medical rooms, and the movable imaging component is configured to move between the equipment room and the plurality of medical rooms. For each of the plurality of shielding doors, the shielding door is provided between one of the plurality of medical rooms and the equipment room.

Proposed is a C-arm X-ray imaging apparatus that allows dual-energy tomosynthesis (Tomo) imaging using the same driving system as regular Tomo imaging. The apparatus includes a C-shaped arm, an X-ray generator disposed at a first end of the C-shaped arm, and an X-ray detector disposed at a second end of the C-shaped arm to face the X-ray generator with a subject in between, wherein the X-ray generator moves back and forth between first and second positions on opposite sides of an initial position and selectively emits X-rays of different first and second energy levels toward the subject, and the X-ray detector receives the X-rays of the first and second energy levels that have passed through the subject.

A radiation imaging apparatus includes a pixel array including, in an imaging region where a plurality of pixels is arranged in a matrix, a detection pixel group in which a plurality of detection pixels is arranged in a row direction, and a control unit configured to control imaging. A grid having a stripe structure in which a radiation transmissive layer and a radiation absorption layer that are strip-shaped and extend in a first direction are alternately arranged in a second direction is disposed and can be used in the radiation imaging apparatus. The radiation imaging apparatus further includes a determination unit configured to determine whether a mode in which the imaging using signals from the detection pixel group is controlled is executable by the control unit, based on information about an angle between the row direction and the first direction.

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.

Techniques for natural language control of an imaging device are presented. The techniques use an imaging device interface, a language model interface, an audio interface, and a human model. The audio interface receives an audio input from a user, transcribes the audio input, and provides the audio input transcription to the language model interface. The language model interface provides the audio input transcription to the language model, receives a response from the language model, and provides the response to the human model. The human model maintains a representation of a current position of an individual, receives the response from the language model interface, forms an action request based on the response and the current position of the individual, and sends the action request to imaging device interface. The imaging device interface sends the action request to the imaging device, such that the imaging device acts on the action request.

Systems and methods for performing one or more medical imaging analysis tasks on PCCT (photon-counting computed tomography) images are provided. Image acquisition parameters of a PCCT image acquisition device are determined for acquiring PCCT images. One or more PCCT images of an anatomical object of a patient acquired using the PCCT image acquisition device configured with the image acquisition parameters are received. One or more medical imaging analysis tasks analyzing the anatomical object are performed based on the one or more PCCT images using one or more machine learning based models. Results of the one or more medical imaging analysis tasks are output.

The invention discloses an X-ray machine inspection parameter automatic configuration system for pet inspection, and relates to the technical field of medical imaging equipment, a displacement prediction model is used for pre-judging a pet convulsion state before exposure, a dynamic exposure trigger is only activated in a stable interval, and motion blur is avoided from the source; compared with the scheme of relying on post-exposure image feedback adjustment in the prior art, invalid radiation and repeated exposure operation can be avoided; the partition parameter mapping module is combined with a species feature database to map the gray level of the preview image into equivalent thickness and independently generate region parameters; aiming at extreme body type difference, such as an abdominal fat layer of an obese dog and a rib region of an emaciated cat, the system automatically distributes differentiated kV / mA parameters, and the problem of overexposure or underexposure caused by a traditional fixed penetration rate standard is eliminated; and the radiation fusing unit monitors the accumulated dose in real time, dynamically adjusts a safety threshold according to the weight of the pet, and stops exposure before the dose exceeds the limit.

The invention provides a CT (Computed Tomography) equiangular data acquisition method and system, a storage medium and a CT scanning system. The method comprises the following steps: acquiring an offset error of a rotor encoder of the CT scanning system; calculating a compensation amount of the rotor encoder based on the offset error; after the compensation amount is delayed at a theoretical trigger signal of the data measurement system of the CT scanning system, a corrected trigger signal is sent out; and correcting the data acquisition of the current view based on the triggering interval of the previous view of the CT scanning system. According to the CT equiangular data acquisition method and system, the storage medium and the CT scanning system, equiangular data acquisition of the CT scanning system is realized through rotor encoder error compensation and rotor speed error compensation.

The invention relates to a method for guiding the positioning of an imaging device (1) by means of a navigation system, to a corresponding computer-readable storage medium, to a computer program product, and to a control device, to an electronic device for guiding the positioning of an imaging device by means of a navigation system, to a corresponding navigation system, and to a medical system. The method comprises: a light source position acquisition step of acquiring a current position of an X-ray light source (1) in a navigation system; a mark point position acquisition step of acquiring a current position of a mark point (2) arranged on the patient under the navigation system; a projection position acquisition step of acquiring a first projection position of a mark point under the light source (1); and a display step of displaying the model of the field of view of the light source and displaying the model (3) of the mark point according to the first projection position. The position of the image equipment can be guided and adjusted in a visual mode, invalid shooting is reduced, radiation is reduced, and the difficulty of recognizing a target object such as a vertebral body is lowered.

A PET scanner includes gamma-ray detector rings that form a bore through which an imaging subject is translated, a length of the bore defining an axial length of the PET scanner, the gamma-ray detector rings being movable along the axial length, the gamma-ray detector rings including gamma-ray detector modules therein, and processing circuitry configured to receive PET data associated with a plurality of transaxial slices of the imaging subject, the PET data including a first set of spatial information and timing information corresponding to a first data acquisition period for the gamma-ray detector modules in a first axial position and a second set of spatial information and timing information corresponding to a second data acquisition period for the gamma-ray detector modules in a second axial position, and reconstruct a PET image based on the first set of spatial and timing information and the second set of spatial and timing information.

The embodiment of the invention discloses a long-range blood vessel imaging method and system.The method is applied to C-shaped arm imaging equipment, the C-shaped arm imaging equipment comprises a C-shaped arm, and a ray emitter and a ray detector are arranged at the two ends of the C-shaped arm respectively; the method comprises the following steps: injecting a contrast agent into a blood vessel of a target object; projection data are obtained in a spiral scanning mode through a ray emitter and a ray detector at the two ends of the C-shaped arm; and generating an angiography image based on the projection data.

X-ray imaging systems containing a quick disconnect feature for the X-ray head containing the X-ray source are described. The X-ray imaging systems comprise an X-ray head containing an X-ray source and supporting electronics including high-voltage electronics, a control device, an arm coupled to the X-ray head, and low voltage cabling disposed within the arm and configured to connect the supporting electronics to the control device, the electrical cabling comprising a disconnect between the supporting electronics and the control device, and where the X-ray head is removably attached to the arm so that when the electrical cabling is disconnected, the X-ray head can be removed from the X-ray system. These X-ray imaging systems offer an easier method for removing the X-ray head, such as for replacement, servicing, and / or repair. Other embodiments are described.

A radiographic imaging system includes a control apparatus configured to control a radiation generation apparatus, and a radiographic imaging apparatus including a sensor unit configured to detect radiation emitted from the radiation generation apparatus and a communication unit configured to transmit, to the control apparatus, an irradiation stop signal to stop the radiation generation apparatus from emitting radiation based on a dose of the radiation detected by the sensor unit, wherein the communication unit transmits, to the control apparatus, a plurality of control signals as one set, each of the plurality of control signals including the irradiation stop signal, and wherein the control apparatus stops generation of radiation from the radiation generation apparatus based on the plurality of control signals.

Provided in the present application are an image stitching method for an X-ray imaging system, an X-ray imaging method, and X-ray imaging systems. The X-ray imaging system includes an X-ray source, and the image stitching method includes dividing an imaging region of a subject under examination into a first region and a second region, the first region and the second region having an overlapping portion; acquiring a first quantity of X-ray images of the subject under examination by rotating the X-ray source in the first region; acquiring a second quantity of X-ray images of the subject under examination by translating the X-ray source in the second region; and performing image stitching on the first quantity of X-ray images and the second quantity of X-ray images to acquire a medical image of the subject under examination.

A system configured to reduce scatter radiation around a surgical table during a medical procedure that may include at least one radiation shield configured to be connected to a surgical table with an attachment mechanism, wherein the at least one radiation shield includes one or more adjustable radiation shield segments coupled or releasably coupled to the at least one radiation shield. A device may include a pump in fluid communication with the one or more adjustable radiation shield segments comprising a pneumatic channel that is configured to at least partially inflate the pneumatic channel such that at least a first portion of the at least one radiation shield extends vertically above at least a portion of the surgical table, wherein a second portion of radiation shield is configured to extend below the surgical table. A device may include a controller configured to activate the pump.

The invention discloses a medical CT (Computed Tomography) communication method for high-precision synchronization of multi-source data and a CT system. Wherein the rotary control unit and the fixed control unit are connected with each other through a private wireless link, take an FPGA / MCU platform as a core, and realize microsecond-level synchronization by utilizing a unified clock source, a hardware timestamp and round-trip delay correction; during scanning, the fixing unit returns multi-source data such as bed codes, electrocardio and high-voltage parameters in real time, and the rotating unit fits and triggers instantaneous bed information based on cached data and sends the instantaneous bed information to the image reconstruction unit after the instantaneous bed information is strictly aligned with detector data. According to the scheme, traditional high-voltage cables and drag chains are replaced, hidden dangers of insulation aging, mechanical abrasion and data interruption are eliminated, and the fault rate is remarkably reduced; meanwhile, motion artifacts are inhibited, and the image definition and real-time performance are improved. Protocol multiplexing and dynamic bandwidth allocation further reduce delay and bit error rate, and support seamless expansion of subsequent modules.

The present disclosure relates to a method for imaging and an imaging system. The method includes obtaining a scanning protocol for an examination subject, which includes: obtaining calibration data associated with the scanning protocol in response to a commonly used scanning protocol calibration data set of a medical imaging system including the calibration data; or performing a calibration operation in response to a commonly used scanning protocol calibration data set of a medical imaging system not including calibration data associated with the scanning protocol, to generate calibration data associated with the scanning protocol. The method further includes scanning the examination subject based on the scanning protocol, to obtain raw imaging data, and performing reconstruction using the calibration data associated with the scanning protocol and the raw imaging data, to obtain a medical image of a scanned subject.

A dental X-ray imaging system (100) comprises: a dental X-ray imaging unit (102) having an X-ray source part (114), an X-ray imaging detector part (116) with an X-ray detector, and a gantry part (112) for the X-ray source part (114) and the X-ray imaging detector part (116); and a control system (106). The control system (106) controls the parts of the dental X-ray imaging unit (102) to acquire an X-ray scout image (302) of the patient (300) by using a first, larger part of an active area of the X-ray detector, and to acquire panoramic dental X-ray image data of the patient (300) by using a second, smaller part of the active area of the X-ray detector being respective to the panoramic imaging. A method for a panoramic dental X-ray imaging of a patient (300), a computer program (714), and a tangible non-volatile computer-readable medium are also disclosed.

The invention discloses a CT scanning bed control method and system based on EtherCAT motion control, and the method comprises the steps: selecting a scanning mode according to a scanning demand, and calculating a motion parameter corresponding to the scanning mode; receiving the scanning mode and the motion parameter information, and converting the scanning mode and the motion parameter information into a motion mode instruction of the scanning bed through TCP protocol processing; receiving the motion mode instruction, and converting the motion mode instruction into an EtherCAT protocol format; and receiving the motion mode instruction in the EtherCAT protocol format, and controlling the scanning bed to act through the servo driver based on the motion mode instruction in the EtherCAT protocol format so as to complete a scanning task. EtherCAT full duplex communication is adopted, so that data transmission is more timely and accurate, and high-speed and stable information interaction is realized; a sine line planning model is introduced, the motion trail of the scanning bed can be accurately planned according to different scanning modes, motion errors and jitter are reduced, and the CT scanning precision is improved.

An apparatus has an upright gantry. A tube arm assembly and a compression arm assembly are rotatably coupled to the gantry. The tube arm assembly independently rotates relative to the compression arm assembly. A controller disposed on the gantry is operably connected to at least one of the tube arm assembly and the compression arm assembly.

The invention relates to a method for controlling the temperature of an X-ray device, comprising: - Acquiring planning information comprising at least one operating parameter of at least one component of the X-ray device for a planned operation of the X-ray device, - identifying a planning temperature of the at least one component of the X-ray device based on the at least one operating parameter, - Operating the X-ray machine according to the planning information, wherein a temperature control unit of the X-ray device is controlled before and / or during operation of the X-ray device based on the planning temperature such that the temperature control unit tempers the at least one component of the X-ray device to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power. The invention further relates to an X-ray device and a computer program product.

For a particularly precise check of travel accuracy, a measuring system is provided for checking and / or calibrating a travel accuracy of a mobile medical device that may be moved over a floor automatically or semiautomatically in a motorized manner. The measuring system includes a flat mat with an underside that may be arranged on the floor, and with an upper side on which indicator patterns that include at least one zero point mark for positioning the medical device and a number of track markings for travel motions of the mobile device are arranged. The measuring system includes a unit for illuminating the indicator patterns that are arranged on the mat using at least one concentrated light beam. The unit is arranged on the mobile medical device, such that the light beam is directed onto the upper side of the mat.

Embodiments of the present disclosure may provide a system, a method, and a device for X-ray imaging. The method may include: obtaining a grayscale of a current frame of an object, wherein the current frame is obtained by performing X-ray imaging on the object based on current performing parameters; determining an updated equivalent phantom thickness of the object based on the grayscale of the current frame, the current performing parameters, and a pre-stored correspondence, wherein the pre-stored correspondence reflects dose values corresponding to a plurality of equivalent phantom thicknesses and a plurality of performing parameters; and determining target performing parameters of a next frame of the object based on the updated equivalent phantom thickness, a target grayscale, and the pre-stored correspondence.

The invention discloses an intelligent linkage system of radiographic inspection equipment and a protection device. The intelligent linkage system comprises an image recognition module, a controller and a driving and protection structure. The image recognition module captures an image of a detected person and position change information of radiographic inspection equipment and transmits the information to the controller; the controller calculates the height of a detected person, a detection part and an equipment position through a convolutional neural network algorithm, determines a target protection position and generates a motor driving instruction; the driving and protection structure drives the protection part to the target position according to the instruction. According to the system, machinery and artificial intelligence are combined, the system can automatically adapt to different crowds, automatic radiation protection of DR and CT examination is achieved, the protection standardization and the working efficiency are improved, and the radiation risk is reduced.

Methods and systems are provided for adaptively configuring time delays between scans of a scan sequence performed using an imaging system, to maintain a temperature of components of an X-ray tube of the imaging system within a threshold temperature. A software tool is provided that allows a user to import, modify, and / or create scan sequence protocols (e.g., such as image quality (IQ) protocols) using a dedicated graphical user interface (GUI). The software tool parses the scan sequence protocols, using a thermal physics model of the X-ray tube to calculate a plurality of adaptive delays to be inserted between each scan of the scan sequence, such that all the components of the tube stay within predefined thermal limits for robust IQ or within a thermal range typical of a clinical site's thermal operating range. Each adaptive delay may be of a different length of time.

The invention provides an imaging method, device and equipment of an interventional instrument. The imaging method comprises the following steps: acquiring a movement track and a current position of the interventional instrument in an interventional environment; according to the motion trail and the current position, a local scanning visual field area of the imaging equipment is determined, and the local scanning visual field area at least comprises an expected advancing path of the interventional instrument; and imaging the interventional instrument according to the local scanning view area to obtain a local image of the interventional instrument. The radiation quantity in the imaging process of the interventional instrument is reduced, and the imaging accuracy is improved.

Provided are an X-ray imaging device comprising a camera and a method for operating same. The X-ray imaging device may input an image obtained by using a camera to an artificial intelligence model, thereby recognizing and tracking a portable X-ray detector from the image, and may perform an operation according to an auto tracking function of the portable X-ray detector for automatically moving the position of an X-ray tube such that the focal spot of an X-ray irradiation region is aligned on the central region of the portable X-ray detector.

The invention discloses a CT scanning system which comprises a working frame, a detection bed assembly, a detection seat assembly and a scanning ring connected with the working frame through an adjusting unit, and the adjusting unit can drive the scanning ring to transversely move between detection stations of the detection bed assembly and the detection seat assembly. According to the CT scanning system, the adjusting unit can drive the scanning ring to move between the detection station of the detection bed assembly and the detection station of the detection seat assembly, the scanning plane angle can be rapidly adjusted according to the detection posture of a patient, and the CT scanning efficiency is improved. Accurate alignment of the central axis of the scanning ring and the patient body position anatomical axis is ensured, body position adaptability is high, and the space utilization rate can be effectively increased.

The invention belongs to the technical field of medical equipment, and discloses a multi-degree-of-freedom adjustable patient positioning mechanism, a use method and a CT scanning system. The mechanism comprises a supporting body, a rotating body and a multi-stage driving mechanism, the supporting body comprises an upper bearing assembly and a lower bearing assembly, and the upper bearing assembly is of a multi-stage telescopic structure so as to adapt to dynamic switching of lying, standing and inclined positions. A lifting assembly and a sliding driving assembly are arranged between the supporting body and the rotating body, and height adjustment is achieved through a lifting rod and a sliding block connecting rod mechanism. Meanwhile, a transverse sliding mechanism and a longitudinal sliding mechanism are integrated for fine adjustment. The rotating body is provided with a rotating disc lifting mechanism and a centering adjusting mechanism, concentric calibration is achieved through meshing of an arc-shaped centering assembly and a gear rack, and it is ensured that a target spot of a patient and a radiotherapy isocenter point dynamically coincide. Through multi-dimensional cooperative adjustment, the problems that traditional equipment is single in body position adaptation and low in positioning precision are solved, scanning and radiotherapy scenes are adapted, and the diagnosis and treatment efficiency and the comfort level of a patient are improved.

Provided herein is technology relating to radiology and radiotherapy and particularly, but not exclusively, to apparatuses, methods, and systems for multi-axis medical imaging of patients in vertical and horizontal positions.