1562results about "Radiation diagnostic device control" patented technology

A radiation imaging system comprises a radiation detector having a plurality of pixels for detecting radiation arrayed in a matrix, a plurality of detecting pixels arranged in a region in which the plurality of pixels are arrayed in the matrix and configured to output a signal corresponding to an amount of irradiation with the radiation; and a processing unit. The processing unit receives weighting information associated with a region of interest in an imaging range and generates determination information for controlling irradiation with the radiation by applying the weighting information to the corresponding signal.

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.

A mobile medical imaging apparatus and a moving trolley thereof are disclosed. The mobile medical imaging apparatus has an imaging device mounted on the moving trolley. The moving trolley includes a trolley body, a force detection unit and a control unit. The trolley body includes a power-assisted travelling mechanism. The force detection unit is arranged on the trolley body and configured to detect force information on a driving force applied to the trolley body by an operator. The force information on the driving force includes at least a direction of the driving force. The control unit is connected to the force detection unit and configured to acquire the force information, and control, based on the force information, the power-assisted travelling mechanism to move relative to ground.

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.

A radiography system executes at least one of the following: prohibiting fluoroscopy and permitting still image capturing and continuous still image capturing in accordance with switching of a communication mode from the wired communication to the wireless communication; limiting a frame rate during the continuous still image capturing to a predetermined value or less; and disabling an auto exposure control function, which transmits an irradiation stop signal for stopping irradiation with radiation via a radiation irradiation device at a point in time at which a cumulative irradiation dose with which a radiography apparatus is irradiated reaches an appropriate amount.

Described herein are systems and methods for positioning a radiation source with respect to one or more regions of interest in a coordinate system. Such systems and methods may be used in emission guided radiation therapy (EGRT) for the localized delivery of radiation to one or more patient tumor regions. These systems comprise a gantry movable about a patient area, where a plurality of positron emission detectors, a radiation source are arranged movably on the gantry, and a controller. The controller is configured to identify a coincident positron annihilation emission path and to position the radiation source to apply a radiation beam along the identified emission path. The systems and methods described herein can be used alone or in conjunction with surgery, chemotherapy, and / or brachytherapy for the treatment of tumors.

Described herein are methods for beam station delivery of radiation treatment, where the patient platform is moved to a series of discrete patient platform locations or beam stations that are determined during treatment planning, stopped at each of these locations while the radiation source rotates about the patient delivering radiation to the target regions that intersect the radiation beam path, and then moving to the next location after the prescribed dose of radiation (e.g., in accordance with a calculated fluence map) for that location has been delivered to the patient.

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.

A system and method for acquiring in vivo tomographic X-ray scatter data for tissue discrimination of breast tissue. The system includes a coded aperture for spatially encoding X-ray scatter originating from within a patient's breast. Detectors record the modulated scatter signal, which is used to reconstruct a spatially resolved estimate of the X-ray scatter spectra which can then be used to generate spatially resolved tissue type estimates for the user.

The lung analysis system based on the parameter response diagram and the image generation system is realized. The system is composed of a data collection and management module, an image registration module, a controllable image generation module, a parameter response diagram analysis module and a disease course development evaluation module. The data collection and management module is in butt joint with a hospital information system and CT image collection equipment. The image registration module receives a double-phase CT scanning image of a patient to obtain a registered double-phase CT image; the controllable image generation module receives a single inspiration phase CT scanning image of a patient as input to generate a registered expiration phase CT scanning image; the parameter response diagram analysis module obtains multiple parameter response diagram analysis and evaluation results of organic lesion evaluation of the lung of the patient; the disease course development evaluation module predicts the lung function condition of the patient. Therefore, the problems that when a parameter response diagram method is used, biphasic CT collection is difficult, and the ability to evaluate the disease course development of a patient is lacked are solved.

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.

An intelligent control method and system. The intelligent control method comprises: acquiring a first speech signal (1502), wherein the first speech signal (1502) is generated by a first speech device (940) by means of performing detection on first user speech; performing speech recognition on the first speech signal (1502), so as to obtain a speech recognition result (1504); on the basis of the speech recognition result (1504), determining whether the first user speech includes a control instruction (1506) for a target device; and in response to it being determined that the first user speech includes the control instruction (1506) for the target device, controlling the target device on the basis of the control instruction (1506).

The invention provides a motion control signal generation method, a target image acquisition method, a target image processing method and an imaging system. The motion control signal of the imaging device is generated by acquiring the current pose of the imaging device, the current pose of the target and the stored third pose information and fourth pose information, so that the imaging device is automatically adjusted to the target pose position, and accurate overlapping of the imaging space and the target is ensured. Through the data processing process, the control device can calculate the ideal position and angle of the imaging device in real time and adjust the imaging device to the best imaging state stored in advance. Compared with a traditional manual pose adjusting mode, the method has the advantages that automatic control is achieved, the repeated adjusting time in the operation process is remarkably shortened, and the efficiency of adjusting the imaging device to the optimal image collecting position is greatly improved.

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.

Provided is a mobile radiographic imaging system that includes: a radiation generating apparatus that emits radiation; and a control means capable of setting the radiation generating apparatus to a plurality of modes including a first mode, in which the radiation generating apparatus performs moving image imaging with an allowable radiation dose, and a second mode, in which the radiation generating apparatus performs the moving image imaging with an allowable radiation dose smaller than the allowable radiation dose in the first mode.

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.

A multitube X-ray emitter housing according to the invention includes a housing, a high-voltage supply and a cooling device with an electrically insulating cooling medium. The high-voltage supply has a plurality of high-voltage contacts connected in parallel on a single high-voltage supply lead. A first of at least one side surface of the housing has a first electrically conductive housing portion with a temperature-dependent electrical conductivity. The multitube X-ray emitter housing further includes: a control unit having an interface to receive a measured value representing the electrical conductivity of the first electrically conductive housing portion and to compare the measured value with a threshold value; and a switching device to switch off the high voltage based on the comparison.

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 provides medical imaging equipment and a mobile device thereof, the mobile device comprises a vehicle body, a force acquisition unit and a control unit, and the vehicle body is provided with an electrically-driven power-assisted walking mechanism; the force acquisition unit is arranged on the vehicle body and is used for acquiring a vector result of a driving force applied to the vehicle body by an operation object; and the control unit is connected with the force acquisition unit to obtain a vector result, and controls the electrically-driven power-assisted walking mechanism to generate motion adaptive to the vector result. Thus, after the force collection unit collects the driving force applied to the vehicle body by the operation object, the control unit drives the electric-drive power-assisted walking mechanism to work so that the vehicle body can generate motion matched with a vector result of the driving force, for example, the driving force is adjusted according to the magnitude and direction of the driving force; and after the control unit controls the electric-driven power-assisted walking mechanism to work, the vehicle body moves forwards, backwards and turns. According to the movable device, the driving force applied to the vehicle body by the operation object can be greatly reduced, and the medical imaging equipment can be conveniently transferred among different operating rooms.

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.

The invention relates to the technical field of spine detection, and particularly discloses a spine detection and scoliosis recognition device which comprises a base, a rotating groove is formed in the outer side of the top of the base, a movable ring is connected to the center of the bottom of the inner wall of the rotating groove, and an electric sliding block sleeves the movable ring. The two ends of the electric sliding block are jointly connected with a shielding ring used in cooperation with the rotating groove, the top of the electric sliding block is connected with a containing plate, the top of the containing plate is connected with an identification part, the identification part comprises a supporting plate, and supporting rods are connected to the four corners of the bottom of the supporting plate. According to the scoliosis identification device, the base, the shielding ring, the identification part, the placing plate, the electric sliding block, the movable ring and the rotating groove are used in cooperation, scoliosis identification can be achieved for people who stand normally or cannot stand normally, the X-ray irradiator is started during identification, the spine of a detected person is irradiated, and therefore follow-up scoliosis identification is conducted.