400results about "Radiation diagnostic device control" patented technology

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 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 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.

The present disclosure provides a system and method for scanning a subject. The method includes determining reference dimensions, along the width direction of the table, of the subject on the table at positions along the moving direction of the table; dividing, based on the reference dimensions, the subject into at least one region along the moving direction of the table, the at least one region including at least one of a first region or a second region; and controlling a relative motion between the detector and the table to perform scanning on the at least one region in sequence along the moving direction of the table. During scanning one of the at least one region, the detector moves along the width direction of the table relative to the table.

A multi-spectral tomography imaging system includes one or more source devices configured to direct beams of radiation in multiple spectra to a region of interest (ROI), and one or more detectors configured to receive the beams of radiation. The system includes a processor configured to cause movement in at least one of the components such that a first beam of radiation with a first spectrum is directed to the ROI for less than 360 degrees of movement of the ROI. The processor is also configured to process data detected by the one or more detectors, where the data results at least in part from the first beam of radiation with the first spectrum that is directed to the ROI for less than the 360 degrees of movement of the ROI. The processor is further configured to generate an image of the ROI based on the processed data.

To reduce weight and increase rigidity of the whole rotation part including a rotary frame.SOLUTION: An X-ray CT apparatus includes a gantry. The gantry includes: a rotary base supported so as to be rotatable; a plurality of units fixed to the rotary base; and a fixing member installed while being separated from the rotary base to fix at least two of the units to each other.SELECTED DRAWING: Figure 2A

System and related method for tomographic imaging. The system may comprise an input interface for receiving a scan request for a region of interest in a surrounding object. Control logic is operable to cause a tomographic imaging apparatus in an imaging session to acquire, along an acquisition axis (Z), multiple projection frames λ(z) of the surrounding object optionally with application of an image quality, IQ, booster operation, for ranges along the acquisition axis of the imaging apparatus. Whilst the imaging session is ongoing, based on a quality assessment in relation to the acquired projection frames, the control logic is to cause revisit one or more times, an earlier range and re-acquire there fresh projection fames λ'(z), with application of the image quality, IQ, booster operation, until the quality assessment is indicative of the quality being on target, or until a stopping condition is met.

The application discloses a kind of scanning trajectory adjustment method, system, equipment and storage medium, the adjustment method includes: the form information of the part to be scanned of target object is obtained, form information includes the size information and position information of part to be scanned;According to the offset angle of scanning device generated according to size information and position information;According to the scanning trajectory of the part to be scanned of scanning device scanning adjusted by offset angle.This application generates the offset angle of scanning device according to the size information and position information of target object, according to the scanning trajectory of the part to be scanned of scanning device scanning adjusted by offset angle, realizes the scanning trajectory based on the organ form information of target object adjustment, to make scanning trajectory adapt to different organ form.

The invention relates to a method for medical imaging and a medical imaging system. The method comprises the following steps: acquiring a scanning protocol for an inspection object; aiming at the scanning protocol: responding to calibration data associated with the scanning protocol included in a common scanning protocol calibration data set of the medical imaging system, and obtaining the calibration data; or in response to the fact that the calibration data associated with the scanning protocol is not included in the common scanning protocol calibration data set of the medical imaging system, performing calibration operation to generate the calibration data associated with the scanning protocol; scanning the examination object based on a scanning protocol to obtain original imaging data; and using calibration data associated with the scanning protocol and the original imaging data for reconstruction to obtain a medical image of the scanned object.

To appropriately perform emphasis processing of a confirmation object of an X-ray image.SOLUTION: A medical image processing apparatus includes an acquisition unit, an extraction unit, and an enhanced image generation unit. The processing circuitry is configured to acquire a plurality of X-ray images of a subject in a time series. The processing circuitry extracts a component relating to motion in each of the X-ray images. The enhanced image generation part generates an enhanced image in which the moving object is enhanced in each of the plurality of X-ray images based on the extracted component related to the motion.SELECTED DRAWING: Figure 3

An apparatus and method for dynamically adjusting a table drive in a medical imaging system are described. An example apparatus includes a table, a table motor controller to move the table, and a detection system to detect a wall, accessory or patient parameter. The detection system includes at least one of a QR code reader, an RFID reader, an NFC reader, a LiDAR sensor, or a camera. A processing system calculates a table drive set point based on the detected accessory or patient parameter and adjusts the table drive and height to prevent collisions. The apparatus also includes a user interface configured to receive user input of room dimensions, which are a factor in determining at least one of an initial table drive set point and the new table drive set point, and a display device configured to provide a graphical depiction of a new maximum scannable range.

A non-transitory computer readable medium (26s) stores instructions executable by at least one electronic processor (14s) to perform a method (100) for assisting an imaging examination of a patient. The method includes receiving examination monitoring information (17, 18, 27) related to the imaging examination and transmitting the examination monitoring information (17, 18, 27) to a remote expert (RE), the examination monitoring information including at least a screen mirroring data stream (27) of a controller (10) of an imaging device (2) used to perform the imaging examination of the patient; tracking a status of the imaging examination from the received examination monitoring information; determining one or more indicators of an issue with the imaging examination based on the tracked status of the imaging examination; and outputting a warning indicative of the determined one or more indicators of the issue with the imaging examination.

An X-ray imaging system (100, 200) includes an X-ray radiation source (105, 205) and an X-ray detector (107, 207) disposed on a gantry structure (109, 220). An X-ray imaging system (100, 200) includes a controller (150, 250) configured to perform an action. The actions include defining a virtual wall (602) within a room (606) within which the X-ray imaging system (100, 200) is disposed and receiving a selected set of predefined positions to move the gantry structure (109, 220) from a starting position at which the gantry structure (109, 220) is disposed adjacent to or around the patient table (604) to the predefined position, where the gantry structure (109, 220) is disposed adjacent to or around the patient table (604). The virtual wall (602) has a predefined position to image the subject with the X-ray imaging system (100, 200), and wherein the predefined position is parallel to the virtual wall (602). The actions include receiving an actuation signal that moves the gantry structure (109, 220) from a starting position to a predefined position in a compact motion and moving the gantry structure (109, 220) from the starting position to the predefined position in the compact motion.

A modular x-ray imaging system includes an application specific module, a base unit in communication with the application specific module, and a mechanical support configured to support the x-ray application specific module. The base unit and application specific module are configured to communicate by wired and / or wireless communication.

Provided is an X-ray imaging apparatus that enables an operator to freely manually move an X-ray source along a rail installed on a ceiling or a floor, and can capture a fluoroscopic image. An X-ray control unit continuously emitting X-rays from an X-ray source and permits fluoroscopy only in a case in which one or more predetermined conditions, including a condition in which the X-ray source is stopped at a predetermined position on a rail corresponding to a position at which an X-ray detector is held, are satisfied. Specifically, the X-ray control unit enables an operation of a fluoroscopy switch, and continuously supplies a tube current and a tube voltage to the X-ray tube in a case in which the operator operates the fluoroscopy switch.

Provided is a radiation detection object posture AI recognition training and adjustment method, comprising: placing a detection object on a detection bed; setting a distance between the detection bed and a radiation source or an imager; photographing the detection object, and marking an obtained posture picture to give a marked posture picture; and performing AI training by using the marked posture picture to give a radiation detection object posture AI recognition feature data set. The posture picture is recognized using an AI recognition algorithm, so as to give information about whether the posture of the detection object is correct. Also provided is a medical radiation detection apparatus, comprising a support frame A, a rotating arm, a control module, a rotating apparatus, a detection object position detection apparatus, and a detection position adjustment apparatus. The detection object position detection apparatus is configured for detecting the position of the detection object. The detection position adjustment apparatus adjusts the height of the detection object according to the position of the detection object, or adjusts the position of the radiation source or the imager.

There are provided a medical image acquisition apparatus and an image generation system capable of, in a case in which a radiation image and an ultrasound image of a breast in a state of being compressed by a compression member are captured, avoiding an influence of a device that performs one imaging on a device that performs the other imaging. A medical image acquisition apparatus (10) captures a radiation image of a breast in a state of being compressed by a compression member (40) using a radiation image acquisition device and captures an ultrasound image using an ultrasound image acquisition device that transmits and receives an ultrasonic wave, in which an element group of the ultrasound image acquisition device and an element group of the radiation image acquisition device are arranged so as not to overlap at least partially with each other in an incidence direction of radiation (R).

The invention discloses an X-ray emission regulation and control mechanism for three-dimensional reconstruction, a double suspension type DR and a use method, and relates to the technical field of medical imaging equipment, the X-ray emission regulation and control mechanism comprises an X-ray emission mechanism, a control box, a rotating mechanism, a lifting mechanism and a linkage mechanism, the X-ray emission mechanism is used for generating and emitting X-rays; the control box is electrically connected with the X-ray emission mechanism and is used for receiving an external instruction and regulating and controlling emission parameters of the X-rays; the rotating mechanism is used for bearing the X-ray emission mechanism and driving the X-ray emission mechanism to rotate so as to realize multi-angle X-ray emission; the lifting mechanism is used for bearing the control box and driving the control box to lift; the linkage mechanism is in transmission connection with the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emission mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to drive the control box to ascend and descend, the rotating path of the X-ray emission mechanism is avoided, the equipment size is effectively reduced, and the scanning angle range and the imaging quality of three-dimensional reconstruction are improved.

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.

There is provided a radiation detection system for a radiotherapy device comprising: a plurality of detectors moveable to position each detector in turn in an imaging position to detect radiation.

A computer-implemented method of evaluating a performance metric for a component of a medical imaging system, is provided. The method includes acquiring monitoring data for the component during a plurality of separate time intervals (1801..i) within a monitoring period (1401). Each time interval is prior to a performance of a diagnostic imaging scan (190) by the medical imaging system, or subsequent to a performance of a diagnostic imaging scan by the medical imaging system. The value of the performance metric is calculated based on the values of the set of monitored parameters acquired during the monitoring period. A revised set of monitored parameters, or a revised set of measurement conditions, is used to acquire monitoring data during one or more subsequent monitoring periods (1402, 1403), and the performance metric is re-calculated. The revised set of monitored parameters, or the revised set of measurement conditions, is determined based on a rate of change of a value of one or more of the monitored parameters during a preceding monitoring period.

The present disclosure provides a system and method for scanning a subject. The method includes determining reference dimensions, along the width direction of the table, of the subject on the table at positions along the moving direction of the table; dividing, based on the reference dimensions, the subject into at least one region along the moving direction of the table, the at least one region including at least one of a first region or a second region; and controlling a relative motion between the detector and the table to perform scanning on the at least one region in sequence along the moving direction of the table. During scanning one of the at least one region, the detector moves along the width direction of the table relative to the table.

This provides a holding system for phantoms used to calibrate imaging systems. [Solution] The retaining system includes at least one rod holder, the at least one rod holder including at least one opening configured to secure at least one rod of the phantom to the retaining system, and a fastener configured to secure the at least one rod holder to the body of the phantom.

The invention provides a nuclear medicine imaging adaptive control method and system based on a modular gamma probe, and relates to the technical field of nuclear medicine imaging. The method comprises the following steps: acquiring multi-scale signal features and identifying an uptake mode of current tracer agent distribution; dynamically adjusting the weight of the multi-scale signal characteristics in the positioning decision of the modular gamma probe array according to the identified characteristics of the shooting mode; after weight adjustment is completed, an adjustment instruction for the modular gamma probe array is generated and executed, the modular gamma probes are controlled to collect data, image data are obtained, and a diagnosis image is reconstructed. The method aims to solve the problem that the image quality is reduced due to data blurring and system misjudgment in an existing self-adaptive control method, and effectively inhibits the acquisition efficiency degradation caused by the difference of imaged objects, so that the diagnosis image quality is improved, artifacts and blurring are reduced, and the reliability and diagnosis accuracy of nuclear medicine imaging are enhanced.

An X-ray CT apparatus (1) according to an embodiment includes an x-ray source (12a), scan control circuity (33), a detector (13), photon counting circuits (42-n), connection circuitry (44) and processing circuitry (43). The scan control circuity (33) controls the x-ray source (12a) to expose a subject with x-rays over a scan having a plurality of views. The detector (13) is disposed to receive x-rays from the x-ray source (12a) and has plurality of pixels arranged in groups. The photon counting circuits (42-n) is provided for each of the pixels respectively. The connection circuitry (44) selectively connects, in a first mode, each pixel to one of the photon counting circuits (42-n) respectively and, in a second mode, each pixel in a group to a same one of the photon counting circuits (42-n). The processing circuitry (43), is connected to the connection circuitry (44) and the photon counting circuits (42-n), selects, for each of the views, the first mode or the second mode based upon a count rate of the x-rays.

Methods, systems, and computer readable media are provided for reduced dose angiography using machine learning (e.g., deep learning) using consistency metrics, the consistency metric indicates a degree of similarity between an estimated segmentation of the angiographic image generated by the machine learning model and a reference angiographic image provided as input to the segmentation of the machine learning model. Briefly, the techniques described herein may use a neural network trained to preserve / maintain the quality of angiographic images by employing consistency metrics while reducing the dose of angiography of potentially harmful chemical contrast agents and / or X-ray radiation.

The application relates to a subject vertical positioning method, a subject vertical positioning device and a CT system. The method comprises the following steps: acquiring the position of an examination bed after the subject is positioned; determining a measurement range corresponding to the organ of the subject on the examination bed, the measurement range comprising a starting point and an ending point in the horizontal direction; during the movement of the examination bed towards a scanning frame, starting the measurement of the distance from the subject by a sensor attached to the scanning frame when the starting point reaches a measurement position of the sensor, and stopping the measurement when the ending point reaches the measurement position, and acquiring the height of the examination bed while the sensor is measuring; calculating the organ center height based on the measurement result of the sensor, the height of the sensor and the height of the examination bed, the height representing the average height of the organ in the vertical direction; and adjusting the height of the examination bed based on the organ center height, so that the adjusted organ center height is equal to the isocenter height of the scanning frame, so as to realize the effects of minimizing the radiation dose of the subject and improving the CT imaging quality.