Canon Patent Applications

Canon patent applications that are pending before the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220405963
    Abstract: A medical image processing device of an embodiment has processing circuitry. The processing circuitry performs position transformation to represent a position in a region of interest set in a captured mammography image of a breast of a subject and an examination position on a body of the subject in an ultrasound examination in a plane of the same scale, determines whether or not the position in the region of interest and the examination position match in the plane, and saves or outputs an ultrasonic image corresponding to the examination position upon determining that the position in the region of interest matches the examination position.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 22, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Guang Yi ONG, Atsuko SUGIYAMA
  • Publication number: 20220399101
    Abstract: The present disclosure relates to a spatially-variant model of a point spread function and its role in enhancing medical image resolution. For instance, a method of the present disclosure comprises receiving a first medical image having a first resolution, applying a neural network to the first medical image, the neural network including a first subset of layers and, subsequently, a second subset of layers, the first subset of layers of the neural network generating, from the first medical image, a second medical image having a second resolution and the second subset of layers of the neural network generating, from the second medical image, a third medical image having a third resolution, and outputting the third medical image, wherein the first resolution is lower than the second resolution and the second resolution is lower than the third resolution.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Liang CAI, Jian ZHOU, Zhou YU
  • Publication number: 20220399110
    Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry acquires a first numerical value and a second numerical value, the first numerical value corresponding to a user's judgement based on an observed confounding factor, the second numerical value corresponding to the user's judgement based on the observed confounding factor and support information that supports the user's judgement. The processing circuitry extracts a difference between the first and second numerical values. The processing circuitry calculates a degree of influence of an unobserved confounding factor on the user's judgement based on the difference and the observed confounding factor.
    Type: Application
    Filed: June 3, 2022
    Publication date: December 15, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Yusuke KANO, Anri YAMAZAKI
  • Publication number: 20220399100
    Abstract: The problem to be solved is to utilize an analysis result of a medical image that uses post-processing function to achieve a higher diagnosis accuracy. The medical image processing apparatus according to the present embodiment includes an acquirer that acquires a first medical image information which is a result of an external processing performed on a second medical information including a medical image, a receiver that receives a selected action for the first medical image information, and a register that associates and registers an action information about the selected action for the first medical image information with the first medical image information.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Haruki IWAI, Rie IKEZAKI, Naoko KURATOMI, Takahiro KUROKI
  • Publication number: 20220397626
    Abstract: In one embodiment, an MRI apparatus includes: processing circuitry configured to: set a first pulse sequence and a second pulse sequence, wherein, in the first pulse sequence, a first gradient pulse is applied between two adjacent refocusing pulses, and, in the second pulse sequence, a second gradient pulse being different in pulse shape from the first gradient pulse is applied between two adjacent refocusing pulses, wherein: the scanner is configured to acquire first signals and second signals; and the processing circuitry is configured to generate at least one first image and at least one second image; and calculate a T2 value of a body fluid of the object from the at least one first image and the at least one second image in such a manner that influence of movement including diffusion of the body fluid is removed.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masao YUI, Aina IKEZAKI
  • Publication number: 20220397622
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes sequence control circuitry and processing circuitry. The sequence control circuitry performs under-sampled data acquisition whose sample points are located at an equal interval in k-space and acquires k-space frames. The processing circuitry generates a plurality of k-space frames related to a plurality of time resolutions based on the k-space frames. In each of the plurality of k-space frames, the sample points are located at an equal interval, and the interval differs for each of the plurality of k-space frames. The processing circuitry generates a time-series image based on the plurality of k-space frames.
    Type: Application
    Filed: June 8, 2022
    Publication date: December 15, 2022
    Applicant: Canon Medical Systems Corporation
    Inventor: Hidenori TAKESHIMA
  • Publication number: 20220397688
    Abstract: A circuit for receiving signals from a photodetector array arranged to detect signals generated by a crystal includes a plurality of summing circuits having weighting circuits, the summing circuits being configured to produce outputs corresponding to a total energy of the signals, a position of the signals in a first dimension of the photodetector array, a position of the signals in a second dimension of the photodetector array, and a radius of a charge distribution of the signals.
    Type: Application
    Filed: June 11, 2021
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yi QIANG, Kent C. BURR, Peng PENG, Xiaoli LI
  • Publication number: 20220395246
    Abstract: The present disclosure is related to removing scatter from a SPECT scan by utilizing a radiative transfer equation (RTE) method. An attenuation map and emission map are acquired for generating scatter sources maps and scatter on detectors using the RTE method. The estimated scatter on detectors can be removed to produce an image of a SPECT scan with less scatter. Both first-order and multiple-order scatter can be estimated and removed. Additionally, scatter caused by multiple tracers can be determined and removed.
    Type: Application
    Filed: June 11, 2021
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Wenyuan QI, Yujie LU, Ryo OKUDA, Evren ASMA, Manabu TESHIGAWARA, Jeffrey KOLTHAMMER
  • Publication number: 20220392048
    Abstract: An apparatus comprises processing circuitry configured to receive a first model and a second model; determine difference information that is representative of a difference between the first model and the second model and/or between the first task and the second task and/or between the first domain and the second domain; and generate a third model using the first model, the second model and the difference information, wherein the generating of the third model comprises training the third model to perform both of the first task and the second task and/or to operate on both the first domain and the second domain.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 8, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Joseph HENRY, Aneta LISOWSKA
  • Publication number: 20220386977
    Abstract: A method includes obtaining, at a local imaging system, projection data for an object representing an intensity of radiation detected along a plurality of rays through the object using a first set of imaging parameters; transmitting an image quality dataset related to the obtained projection data to a remote server; generating, via the remote server, localized restoration information based on the received image quality dataset; transferring the localized restoration information from the remote server to the local imaging system; and updating the local imaging system using the localized restoration information.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 8, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: John BAUMGART, Yi HU
  • Publication number: 20220379630
    Abstract: A low cost and low air resistance belt support structure for an endless belt conveyor of an inkjet printer can be achieved with the belt support structure being provided over a suction chamber. The belt support structure includes a plurality of longitudinal, narrow support beams positioned spaced apart from one another and parallel to one another in a transport direction of the belt to define a flat support plane for the belt. The support beams provides a relatively small contact area with the belt, which results in low friction The support beams further allow for a relatively large open area between them to achieve a low air resistance.
    Type: Application
    Filed: May 13, 2022
    Publication date: December 1, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Joseph A. SCHULKES, Mark RIETBERGEN, Roy H.R. JACOBS
  • Publication number: 20220383501
    Abstract: A medical information display apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to display information on the basis of volume data including at least a lung. The processing circuitry is configured to display a first index value based on an anatomical structure of the lung and a second index value based on the volume data related to the lung, so as to be kept in correspondence with each other.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 1, 2022
    Applicants: FUJITA ACADEMY, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yoshiharu OHNO, Kota AOYAGI
  • Publication number: 20220378312
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a plurality of radio frequency coils, and processing circuitry. The static magnetic field magnet generates a static magnetic field having a magnetic field strength that changes spatially. The plurality of radio frequency coils receive a nuclear magnetic resonance signal generated from a subject by an influence of a radio frequency pulse transmitted to the subject, the subject being placed in the static magnetic field having a magnetic field strength that changes spatially. The processing circuitry controls each of the plurality of radio frequency coils to receive the nuclear magnetic resonance signal at each of a plurality of frequencies tuned according to at least a distribution of the static magnetic field.
    Type: Application
    Filed: May 3, 2022
    Publication date: December 1, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Sadanori TOMIHA
  • Publication number: 20220381928
    Abstract: A data processing apparatus according to an embodiment includes acquisition circuitry and specification circuitry. The acquisition circuitry is configured to acquire a detector signal containing a first component that is based on Cherenkov light and a second component that is based on scintillation light. The specification circuitry is configured to specify timing information about generation of the detector signal by curve fitting to the first component.
    Type: Application
    Filed: May 13, 2022
    Publication date: December 1, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Go KAWATA
  • Publication number: 20220383494
    Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires image data including image data of a blood vessel of a subject. The processing circuitry performs analysis related to the blood vessel by using the image data, and specifies a region of interest in the blood vessel based on a result of the analysis. The processing circuitry performs fluid analysis on a region other than the region of interest at a first accuracy, and performs fluid analysis on the region of interest at a second accuracy that is higher than the first accuracy.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Yiemeng HOI, Joseph Manak, Kazumasa Arakita, Jingwu Yao, James Begelman, Victor Gorin
  • Publication number: 20220381857
    Abstract: According to one embodiment, a magnetic resonance imaging system includes a first imaging apparatus, a first cooling system, a second imaging apparatus, a second cooling system and a cooling control device. The first imaging apparatus includes a first magnet configured to generate a static magnetic field. The first cooling system is configured to cool the first magnet. The second imaging apparatus includes a second magnet configured to generate a static magnetic field. The second cooling system is configured to cool the second magnet. The cooling control device is configured to switch a cooling target of each of the first cooling system and the second cooling system.
    Type: Application
    Filed: April 29, 2022
    Publication date: December 1, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Hiroyuki TSUJINO, Kazuto NAKABAYASHI
  • Publication number: 20220375555
    Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry designates one or more pieces of first clinical data among a plurality of pieces of clinical data viewed by a user. The processing circuitry specifies one or more pieces of second clinical data associated with the first clinical data among the plurality of pieces of clinical data based on a viewing history related to the plurality of pieces of clinical data. The processing circuitry outputs the first clinical data and the second clinical data.
    Type: Application
    Filed: May 20, 2022
    Publication date: November 24, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Nao WARIISHI, Takashi HYO, Masato SHIBUYA, Hayato KONISHI
  • Publication number: 20220371337
    Abstract: The present invention seeks to flatten a sheet when transferred onto an endless belt conveyor facing a print head assembly in a simple and/or low costs manner. Thereto a sheet conveyor is provided comprising an endless, air permeable belt and pressing means. The pressing means comprise a plurality of pressing members spaced apart from one another in a lateral direction of the belt, each pressing member comprising a body which body is moveable in a perpendicular direction with respect to the belt as well rotatable or pivotable around an axis in the perpendicular direction independent of the corresponding bodies of other pressing members. This provides a simple and passive sheet flattening means, resulting in low operational and material costs.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 24, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Thijs R.N. EGELMEERS, Johannes H.L. SMEYERS
  • Publication number: 20220371018
    Abstract: A droplet collection unit of an embodiment includes a generator and processing circuitry. The generator produces droplets each containing a microorganism and a substrate that reacts with an enzyme derived from the microorganism. The processing circuitry detects a reaction between the enzyme and the substrate in each droplet. The processing circuitry sorts the droplets on the basis of a detection result of the reaction.
    Type: Application
    Filed: May 18, 2022
    Publication date: November 24, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Kenta KAMINO
  • Publication number: 20220371842
    Abstract: A sheet printer includes a sheet conveyor assembly including a first conveyor with a first holding device configured for exerting a holding force on a sheet proportional to a coverage of the sheet on the first conveyor and a second conveyor upstream of the first conveyor including a second holding device configured for holding and releasing the sheet, a print head assembly positioned over the first conveyor, a detector assembly for sensing the transport of the first conveyor, a controller storing on its memory a sheet media catalogue and configured to control a release timing of the second holding device for releasing the sheet partially engaged by the first conveyor based on a media type parameter selected from the media catalogue and to control the print head assembly to commence printing the sheet based on transport information from the detector assembly.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 24, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Sjirk H. KOEKEBAKKER, Johan P. SMITS
  • Publication number: 20220375209
    Abstract: A medical data processing device according to an embodiment includes a processing circuit. The processing circuit applies a linear calculation of a complex number coefficient and a non-linear activation not dependent on an argument of complex numbers, to medical data having a complex value.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 24, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hideaki KUTSUNA, Hidenori TAKESHIMA
  • Publication number: 20220375086
    Abstract: According to one embodiment, a medical information processing method generates a high-contrast image by applying conversion processing to a first medical image captured by a first diagnostic apparatus and having a first contrast in a region of interest, the high-contrast image having a contrast higher than a contrast of a second medical image obtained by a second diagnostic apparatus. The method generates a pseudo second medical image by applying image processing to the high-contrast image, the pseudo second medical image simulating the second medical image and having a second contrast lower than the first contrast. The method trains a model using the pseudo second medical image as input data and the high-contrast image as ground truth data, and generates a trained model.
    Type: Application
    Filed: May 20, 2022
    Publication date: November 24, 2022
    Applicants: Fujita Academy, Canon Medical Systems Corporation
    Inventors: Kazuhiro KATADA, Satoru NAKANISHI
  • Publication number: 20220374768
    Abstract: An apparatus of machine learning includes processing circuitry. The processing circuitry uses a first calibration model that receives, as input, first processing data and a first processing label assigned by a user to the first processing data and outputs calibration data relating to calibration of individual characteristics in label assignment by the first user, and trains a target model based on at least the first processing data and the calibration data or a calibrated label having individual characteristics calibrated using the calibration data.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 24, 2022
    Applicant: Canon Medical Systems Corporation
    Inventor: Hidenori TAKESHIMA
  • Publication number: 20220367039
    Abstract: A method and system enable to-be-processed medical image data and its corresponding noise characteristic information to be normalized to resemble noise characteristic information of training data used to train at least one neural network for at least one ultrasound data acquisition mode. After normalizing, this processed medical image data is input into the trained neural network for producing output data used for generating cleaner images. Noise characteristic information can be used directly in training a neural network, generating a trained neural network that can handle medical image data with various noise characteristics.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 17, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Liang CAI, Jian ZHOU, Ting XIA, Zhou YU, Tomohisa IMAMURA, Ryosuke IWASAKI, Hiroki TAKAHASHI
  • Publication number: 20220361827
    Abstract: A positron emission tomography apparatus according to an embodiment includes a plurality of positron emission tomography (PET) detector entities and processing circuitry. The plurality of PET detector entities are arranged in a ring formation. The processing circuitry is configured: to obtain, with respect to each of the plurality of PET detector entities, state information indicating a state of the PET detector entity; to detect an abnormality when an index value indicating a state of any individual or a whole of the plurality of PET detector entities exceeds a threshold value on the basis of the state information; and to detect a state in which the abnormality is not detected on the basis of the state information, but an index value indicating states of at least two of the plurality of PET detector entities is different from an index value indicating states of at least two other PET detector entities.
    Type: Application
    Filed: March 22, 2022
    Publication date: November 17, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Kanji WATANABE
  • Publication number: 20220361843
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes an ultrasound probe and processing circuitry. The ultrasound probe includes a plurality of transducer elements arranged two-dimensionally and includes a plurality of transducer element groups of a Row-Column Addressing type in which, when ultrasound transmission is to be performed, a plurality of first transducer elements arranged in the direction of one of two axes intersecting each other are connected in common to one another and in which, when ultrasound reception is to be performed, a plurality of second transducer elements arranged in the direction of the other of the two axes are connected in common to one another. A plurality of sets that are each made up of the two axes and correspond to the plurality of transducer element groups of the Row-Column Addressing type are mutually different.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 17, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Takeshi SATO
  • Publication number: 20220357469
    Abstract: A plurality of control lines extending in a first direction, a plurality of data lines that extend in a second direction crossing the first direction, a photoelectric converter that includes a photoelectric conversion element and is electrically connected to a corresponding control line and a corresponding data line, a scintillator provided on a plurality of the photoelectric converters, a bias line electrically connected to a plurality of the photoelectric conversion elements, a voltage generation circuit electrically connected to the bias line, and a radiation incidence determination circuit that is electrically connected to the bias line and detects a change of a voltage occurring at an incidence start of radiation are included.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 10, 2022
    Applicant: CANON ELECTRON TUBES & DEVICES CO., LTD.
    Inventor: Shuichi FUJITA
  • Publication number: 20220355595
    Abstract: The invention relates to a print system comprising at least two page-wide arrays of ink jet print heads, positioned in a frame over a conveyor belt for transporting a substrate underneath the arrays, three sensors for reading markers on the conveyor belt and a control unit that is configured to derive control signals from encoder signals of the three sensors. Two sensors are directly connected to the frame and a third sensor is connected to one of the said two sensors by an element with virtually no thermal expansion, extending in transport direction. The control signals, comprising signals for controlling a transport speed of the conveyor belt and line pulses for the at least two print heads, are derived in such a way that an amount of thermal expansion of the frame is determined and an absolute print resolution is maintained.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 10, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Mark RIETBERGEN, Johan P. SMITS, Sjirk H. KOEKEBAKKER
  • Publication number: 20220356034
    Abstract: A stacker module includes a lift table, a stacker configured to place sheets that are successively supplied thereto onto the top of a stack forming on the lift table, a controller configured to lower the lift table as the stack grows, a height-adjustable eject table, and an eject mechanism configured to transfer a completed stack from the lift table onto the eject table. The eject mechanism is height-adjustable for transferring stacks onto the eject table in different height positions of the lift table.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 10, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Johannes A.M. HENDERICKX, Hermanus M. KUYPERS, Fabian T. ROSENBOOM, Lodewijk T. HOLTMAN, Joshua D. CURRAN, Erik P.J. VERHOEVEN, Johannes E.P. PEULEN, Maikel W.H. BERGMANS, Luc LINDERS, Rob J.E. LOOIJMANS
  • Publication number: 20220358643
    Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry estimates a contour of a desired structure based on a medical image, receives a desired correction mode among multiple correction modes for correcting the estimated contour, and corrects the estimated contour according to the desired correction mode.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 10, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Kodai HIRAYAMA, Yasuhiko ABE, Koji ANDO
  • Publication number: 20220351380
    Abstract: According to embodiment, an image processing apparatus comprising a specifying unit and a display controller. The specifying unit that specifies an acquisition position of an indicator relating to blood flow on a blood vessel-containing image collected by a medical image diagnostic apparatus. The display controller that displays the acquisition position on the blood vessel-containing image and displays the indicator on a display unit in association with the acquisition position.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 3, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito TAKAHASHI, Satoshi WAKAI, Takuya SAKAGUCHI
  • Publication number: 20220349967
    Abstract: According to one embodiment, an arrayed structure includes a cylindrical-shaped conductor layer and a cylindrical-shaped layer stack. The cylindrical-shaped layer stack is arranged on an inner periphery of the conductor layer and a plurality of frequency selective surfaces are arranged in layers and stacked. Each of the frequency selective surfaces has a plurality of elements which are periodically arranged. Each element of the plurality of elements is formed in such a manner that at least a portion of an edge of a first element that faces an adjacent element in the same layer is closer to a center of the first element than another portion of edge.
    Type: Application
    Filed: April 8, 2022
    Publication date: November 3, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Takafumi OHISHI, Sadanori TOMIHA
  • Publication number: 20220351025
    Abstract: A data processing device according to an embodiment includes a processing circuit. The processing circuit includes a complex number neural network with an activation function by which an output varies according to an argument of complex.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 3, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hidenori TAKESHIMA, Hideaki KUTSUNA
  • Publication number: 20220348433
    Abstract: The present invention is to enable folding processing to be applied to also large sheet sizes without upsizing the entire apparatus, in the sheet post-processing apparatus for performing the folding processing and binding processing on sheets, a sheet post-processing apparatus is provided with a binding processing section for performing binding processing using a binding needle on a sheet bunch inside a storage section, first folding roller pair for nipping a sheet P inside the storage section in a first position to form a first fold portion, a receiving section for receiving the sheet with the first fold portion formed fed out of the first folding roller pair, and second folding roller pair for nipping the sheet inside the receiving section in a second position to form a second fold portion.
    Type: Application
    Filed: April 25, 2022
    Publication date: November 3, 2022
    Applicant: CANON FINETECH NISCA INC.
    Inventor: Satoru MATSUKI
  • Publication number: 20220343563
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.
    Type: Application
    Filed: July 12, 2022
    Publication date: October 27, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Hideaki ISHII, Satoshi WAKAI, Kazumasa ARAKITA, Takuma IGARASHI, Yasuko FUJISAWA, Shigeo KAMINAGA, Kenji HIROHATA, Junichiro OOGA
  • Publication number: 20220342098
    Abstract: A method and apparatus for diagnosing and/or calibrating underperforming pixels in detectors in a small pixelated photon counting CT system utilizes a series of tests on image data acquired in-situ as part of a series of calibration scans in the CT system. Tests are performed on the acquired data to determine the existence of underperforming pixels within the detectors such that the information acquired by those pixels can be replaced by alternate data from surrounding pixels (e.g. by interpolation). The underperforming pixels are stored in “bad” pixel tables and may be specific to a type of image (e.g., spectral or counting) and a specific protocol.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 27, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Xiaohui ZHAN, Xiaochun LAI, Yi QIANG, Kevin Christopher ZIMMERMAN, Zhihong YE
  • Publication number: 20220338837
    Abstract: A method of guiding performance of an ultrasound imaging procedure, comprising: detecting at least a position of an ultrasound probe; determining a position of an imaging region of the ultrasound probe relative to a target based on the at least detected position of the ultrasound probe; displaying a figure representative of an imaging region together with a reference image associated with the target wherein the appearance of at least part of the figure is dependent on at least the determined position of the imaging region relative to the target; and updating the appearance of at least part of the figure as the ultrasound probe moves relative to the target.
    Type: Application
    Filed: April 27, 2021
    Publication date: October 27, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Robin STEEL, Chris MCGOUGH, Gaurav PHADKE, Tony LYNCH
  • Publication number: 20220343566
    Abstract: An apparatus for reconstructing a positron emission tomography (PET) image, comprising processing circuitry configured to extract, from raw data obtained from a PET scanner, energy data and timing data associated with a plurality of annihilation events, the extracted energy data and the extracted timing data for each annihilation event corresponding to interactions between each of a pair of gamma rays generated by each annihilation event and one or more gamma ray detectors of the PET scanner, classify each annihilation event based on respective extracted energy data and respective extracted timing data, determine, for each annihilation event and based on a calculated timing resolution of the annihilation event, a width of a time-of-flight kernel, and reconstruct, by processing circuitry, the PET image based on the obtained raw data from the PET scanner and the determined width of the time-of-flight kernel associated with each annihilation event.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Peng PENG, Yi QIANG, Wenyuan QI, Xiaoli LI, Li YANG
  • Publication number: 20220343565
    Abstract: According to one embodiment, a reconstruction apparatus obtains acquired raw data, and reconstruct a data set that represents a measured physical amount with a multidimensional space based on the acquired raw data. Herein, the apparatus performs reduction processing for generating noise-reduced partial data from partial data relating to a partial area of a data set at a current number of iterations, error compensation processing for compensating errors in a data set at the current number of iterations with respect to the acquired raw data, and optimization processing for reconstructing the data set by repeating the reduction processing and the error compensation processing until predetermined criteria are met, while moving the partial area.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Applicant: Canon Medical Systems Corporation
    Inventor: Hidenori TAKESHIMA
  • Publication number: 20220343634
    Abstract: According to one embodiment, a pseudo data generation apparatus comprising processing circuitry. The processing circuitry collects a data set including data values of one or more dimensions. The processing circuitry performs conversion of the data values of the one or more dimensions included in the data set. The processing circuitry generates a pseudo physical parameter relating to each of one or more physical amounts.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 27, 2022
    Applicant: Canon Medical Systems Corporation
    Inventor: Hidenori Takeshima
  • Publication number: 20220336063
    Abstract: A medical information processing apparatus comprises processing circuitry. The processing circuitry extracts a character string having clinical meaning from first medical data indicating text data included in medical information, as a topic indicating a reference viewpoint of the medical information. The processing circuitry selects one of the topics from the extracted topics according to a user input. The processing circuitry, among second medical data that includes one or more pieces of data representing a condition of a subject to be examined and that is included in the medical information, performs control of displaying the second medical data related to one of the selected topics on a display device.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kazumasa NORO, Yusuke KANO, Sho SASAKI, Yudai YAMAZAKI, Kosuke ARITA
  • Publication number: 20220333067
    Abstract: According to one embodiment, a pluripotent stem cell manufacturing system includes processing circuitry. The processing circuitry acquires storage information for the storage of a sample from a donor, and surviving cell number information for the number of surviving cells contained in the sample. The processing circuitry estimates tissue stem cell number information for the number of tissue stem cells contained in the sample, based on the storage information and the surviving cell number information.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 20, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Kei MORI, Kohei WATANABE
  • Publication number: 20220336064
    Abstract: A medical information processing apparatus comprises processing circuitry. The processing circuitry collects patient information and medical information related to a medical record including a plurality of medical actions. The processing circuitry causes a display to display the medical record by displaying the plurality of medical actions, the collected patient information, and the collected medical information in time series and displaying an option selected in the medical record by a doctor in association with any reason for the selection of the option. The processing circuitry causes the display device to display the option selected by the doctor and any option not selected by the doctor in a distinguishable manner.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masashi YOSHIDA, Yasunori OHSHIMA, Daizo OIKAWA, Hideo SAITO
  • Publication number: 20220335664
    Abstract: A guided pairing method includes generating a singles list by detecting a plurality of singles at a plurality of detector elements in a detector array, the plurality of singles falling within a plurality of detection windows; for each detection window of the plurality of detection windows in the singles list having exactly two singles of the plurality of singles, determining the line of responses (LORs) for each of the two singles of the plurality of singles; for each detection window of the plurality of detection windows in the singles list having more than two singles of the plurality of singles, determining all coincidences possible based on the more than two singles; generating a weight for said each coincidence of the coincidences based on the determined LORs for said each of the two singles of the plurality of singles; and pairing the more than two singles based on the generated weight for said each coincidence of the coincidences.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Wenyuan QI, Yi QIANG, Peng PENG, Evren ASMA, Jeffrey KOLTHAMMER
  • Publication number: 20220330907
    Abstract: Multiple interactions, such as Compton scattering, inside a PET detector are used to predict an incident photon's direction for identifying true coincidence events versus scatter/random coincidence events by creating a cone shaped shell projection defining a range of possible flight directions for the incident photon. The disclosed techniques can be used as prior information to improve the image reconstruction process. The disclosed techniques can be implemented in a LYSO/SiPM-based layer stacked detector, which can precisely register multiple interactions' 3D position.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Liang CAl, Wenyuan QI, Xiaochun LAl, Peng PENG
  • Publication number: 20220334267
    Abstract: A radiation detector module of an embodiment includes a radiation detector, a first electrode, a second electrode, and a mark. The radiation detector includes an incident surface and is configured to detect radiation incident from the incident surface. The first electrode is provided on the side of the incident surface of the radiation detector. The second electrode is provided to face the first electrode through the radiation detector. The mark is provided on at least one of the incident surface of the radiation detector and the first electrode.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Akira NISHIJIMA
  • Publication number: 20220330920
    Abstract: An ultrasonic diagnostic apparatus of embodiment includes a receiver circuit and processing circuitry. The receiver circuit performs a first process of multiplying a gain to a received signal in analog form while changing the gain with depth, and performs a second process of converting the received signal subjected to the first process into a received signal in digital form. The processing circuitry performs a third process on the received signal in digital form so that a level of noise included in the received signal in digital form is made constant, and performs a fourth process of reducing the noise included in the received signal on the received signal in digital form subjected to the third process.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Takeshi SATO
  • Publication number: 20220330921
    Abstract: A medical image diagnosis apparatus according to an embodiment includes a processing circuit. The processing circuit is configured to obtain three-dimensional data related to a target site. The processing circuit is configured to generate a three-dimensional model of the target site by using the obtained three-dimensional data. The processing circuit is configured to calculate positions of one or more recommended cross-sections to be set for the target site, on the basis of information about the size of the target site obtained by using the three-dimensional model. The processing circuit is configured to cause a display device to display the positions of the one or more recommended cross-sections.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Keisuke MIYAKI, Yasunori HONJO
  • Publication number: 20220327665
    Abstract: Existing, low quality images can be restored using reconstruction or a combination of post-reconstruction techniques to generate a real patient phantom. The real patient phantom (RPP) can then be simulated in Monte Carlo simulations of a higher performance system and a lower performance system. Alternatively, the RPP can be simulated in the higher performance system, and a real scan can be performed by an existing, lower performance system. The higher performance system can be differentiated from the lower performance system in a variety of ways, including a higher resolution time of flight measurement capability, a greater sensitivity, smaller detector crystals, or less scattering. A neural network can be trained using the images produce by the higher performance system as the target, and the images produced by the lower performance system as the input.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 13, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Chung CHAN, Li YANG, Wenyuan Ql, Evren ASMA, Jeffrey KOLTHAMMER, Yi QIANG
  • Publication number: 20220323038
    Abstract: A near field communication system according to an embodiment includes: a long coupler provided for a first device; a short coupler provided for a second device and configured to perform wireless communication based on electromagnetic field coupling, with the long coupler; and signal processing circuitry configured to vary gain for each of various frequencies of a signal transmitted and received between the long coupler and the short coupler, in accordance with the position of the short coupler with respect to the long coupler.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 13, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Jun MORITA