Patents Assigned to Canon Medical Systems Corporation
  • Publication number: 20210293638
    Abstract: An analysis apparatus of an embodiment includes one or more processors. The processors receive structural information indicating a structure of a pipe to be analyzed and fluid information indicating a state of a fluid flowing in the pipe. The one or more processors obtain a plurality of loss factors of the pipe based on the structural information and the fluid information and calculate a wall shear stress of the pipe from the loss factors.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 23, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsuaki KATO, Kenji HIROHATA, Akira KANO, Akihiro GORYU
  • Publication number: 20210290977
    Abstract: According to one embodiment, an irradiation control apparatus includes processing circuitry. The processing circuitry obtains an MR image of a first time phase, which includes a tumor region of a patient. The processing circuitry estimates a position of the tumor region of the patient of a second time phase from the MR image of the first time phase, the second time phase being a predetermined time phase after the first time phase. The processing circuitry controls irradiation by a radiotherapy apparatus based on the estimated tumor position of the second time phase.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 23, 2021
    Applicant: Canon Medical Systems Corporation
    Inventor: Masahide ICHIHASHI
  • Publication number: 20210290195
    Abstract: An apparatus and a method for correcting for signal variations in pixels of a main photoelectric conversion element in a radiation detection apparatus due to focal spot position drifts. Edge reference detectors are positioned next to the main detector, in the fan beam coverage but outside the scan field of view. The signal variations of the edge reference detector pixels under the ant-scatter grid shadow are used to estimate the real-time focal spot movement, which is used to estimate the shadow/signal variation on the main detector pixels that are in the scan field of view.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 23, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Zhan XIAOHUI, Qiang YI, Zhihong YE
  • Publication number: 20210290191
    Abstract: First and second substantially independent identically distributed half scans are obtained; the first substantially independent identically distributed half scan is used as training data to train a machine learning-based system, and the second substantially independent identically distributed half scan is used as label data to train a machine learning-based system. This produces a trained machine learning-based system.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 23, 2021
    Applicants: The Regents of the University of California, Canon Medical Systems Corporation
    Inventors: Jinyi QI, Nimu Yuan, Jian Zhou
  • Publication number: 20210290193
    Abstract: A deep learning (DL) network corrects/performs sinogram completion in computed tomography (CT) images based on complementary high- and low-kV projection data generated from a sparse (or fast) kilo-voltage (kV)-switching CT scan. The DL network is trained using inputs and targets, which respectively generated with and without kV switching. Another DL network can be trained to correct sinogram-completion errors in the projection data after a basis/material decomposition. A third DL network can be trained to correct sinogram-completion errors in reconstructed images based on the kV-switching projection data. Performance of the DL network can be improved by dividing a 3D convolutional neural network (CNN) into two steps performed by respective 2D CNNs. Further, the projection data and DLL can be divided into high- and low-frequency components to improve performance.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Jian ZHOU, Ruoqiao ZHANG, Zhou YU, Yan LIU
  • Patent number: 11125766
    Abstract: Example apparatus and methods related to automated diagnostic analyzers having rear accessible track systems are described herein. An example apparatus disclosed herein includes an analyzer to perform a diagnostic test. The analyzer has a first side and a second side opposite the first side. The example apparatus includes a loading bay disposed on the first side of the analyzer to receive a first carrier and a pipetting mechanism coupled to the analyzer adjacent the second side. The example apparatus also includes a first carrier shuttle to transport the first carrier from a first location adjacent the loading bay to a second location adjacent the pipetting mechanism and a track disposed adjacent the second side of the analyzer to transfer a second carrier to a third location adjacent the pipetting mechanism.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 21, 2021
    Assignees: Abbott Laboratories, Canon Medical Systems Corporation
    Inventors: Brian L. Ochranek, David C. Arnquist, Takehiko Oonuma, Hirotoshi Tahara, Naoto Sato, Bradley P. Smith
  • Patent number: 11123038
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes an imager, a mechanism, and processing circuitry. The imager is configured to image a subject. The mechanism is comprising a movable part. The processing circuitry is configured to generate an image of the subject based on an output of the imager, and perform processing for incident data based on at least one of a result of analyzing the image of the subject, or information for motion of the mechanism, wherein the incident data comprises at least one of operating sound data or shaking data of the mechanism.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: September 21, 2021
    Assignee: Canon Medical Systems Corporation
    Inventors: Koji Noda, Arata Komuro, Tsuyoshi Kojima, Tomoko Ishizaki, Takeshi Ishii, Yuki Kato, Tomomi Nagae
  • Patent number: 11123044
    Abstract: A signal processing device according to an embodiment includes adjustment circuitry and processing circuitry. The adjustment circuitry adjusts a received signal based on an echo of an ultrasonic wave transmitted to a subject with gain corresponding to a location at which the echo has been generated. The processing circuitry corrects the received signal that has been adjusted by the adjustment circuitry and calculates an index value relating to attenuation by using the corrected received signal.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 21, 2021
    Assignee: Canon Medical Systems Corporation
    Inventor: Yuko Kanayama
  • Patent number: 11123043
    Abstract: An ultrasound diagnostic apparatus according to one embodiment includes processing circuitry. The processing circuitry acquires local function index values related to a right ventricle. The processing circuitry generates a functional image of the right ventricle representing a distribution of the local function index values, using a medical model diagram of the right ventricle, the medical model diagram being a model diagram in which the right ventricle is developed onto a plane, and in which a blood inlet portion leading into the right ventricle and a blood outflow portion leading out from the right ventricle are plotted to positions that are separated from each other on the external circumference side of the model diagram. The processing circuitry then causes a display to display the functional image of the right ventricle.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: September 21, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Yasuhiko Abe
  • Patent number: 11123045
    Abstract: An ultrasonic diagnostic apparatus according to a present embodiment includes: a transmitting and receiving circuit configured to transmit an ultrasonic wave to an ultrasonic probe and receive a signal based on the ultrasonic wave received by the ultrasonic probe; a generation circuit configured to generate multiple 2D image data in a chronological order based on the signal; an acquisition circuit configured to acquire multiple positional data of the ultrasonic probe; a memory circuit; a processing circuit configured to perform processing in such a manner that the multiple 2D image data arranged in the memory circuit according to the multiple positional data fit inside a memory space of the memory circuit; and a volume generation circuit configured to generate volume data in the memory space based on the processed multiple 2D image data.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 21, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Eiichi Shiki
  • Patent number: 11125845
    Abstract: A deep learning (DL) network is proposed to mitigate artifacts in simultaneous multi-slice (SMS) magnetic resonance imaging (MRI) data. For example, unaliased images generated from SMS aliased images can exhibit leakage artifacts due to inaccuracies in the receive-coil sensitives used during sensitivity encoding (SENSE) processing. To mitigate leakage artifacts, the DL network learns to correct the receive-coil sensitives before SENSE processing, and/or learns to detect and subtract the artifacts from the unaliased images after SENSE processing. The DL network can also be trained to denoise the unaliased images.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 21, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Anuj Sharma
  • Publication number: 20210282732
    Abstract: A method and apparatus is provided to perform dead-time correction in a positron emission tomography (PET) by estimating a full singles spectrum using a scatter model. The scatter model can use a Monte Carlo method, a radiation transfer equation method, an artificial neural network, or an analytical expression. The scatter model simulates scatter based on an emission image/map and an attenuation image/map to estimate Compton scattering. In the full singles spectrum, the singles counts with energies less than 511 keV are determined from the simulated scatter. The attenuation image can be generated based on X-ray computed tomography or based on applying a joint-estimation to PET data.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 16, 2021
    Applicant: Canon Medical Systems Corporation
    Inventors: Wenyuan QI, Yi Qiang, Karthikayan Balakrishnan, Yujie Lu
  • Publication number: 20210282727
    Abstract: A collimator according to an embodiment is a collimator for use in an X-ray CT apparatus and includes a collimator module and resin. The collimator module includes a first scattered ray eliminating part and a second scattered ray eliminating part. The resin is provided between the first scattered ray eliminating part and the second scattered ray eliminating part and is configured to hold the first scattered ray eliminating part and the second scattered ray eliminating part.
    Type: Application
    Filed: February 4, 2021
    Publication date: September 16, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Akira NISHIJIMA
  • Publication number: 20210286947
    Abstract: An apparatus comprises processing circuitry configured to pre-process text data for inputting to a trained model, the pre-processing comprising: receiving a set of text data including numerical information, the set of text data comprising a plurality of tokens, wherein a first subset of the plurality of tokens comprises tokens that do not comprise numerical information, and a second subset of the plurality of tokens comprises tokens that each comprise respective numerical information; transforming each of the plurality of tokens into a respective encoding vector, each of the plurality of tokens in the second subset having a common encoding vector; assigning a respective numerical vector to each of the plurality of tokens, wherein each token in the second subset is assigned a respective numerical vector in dependence on the numerical information in said token; and combining the encoding vectors and numerical vectors to obtain a vector representation of the text data.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 16, 2021
    Applicant: Canon Medical Systems Corporation
    Inventor: Maciej PAJAK
  • Patent number: 11116464
    Abstract: An X-ray diagnostic apparatus according to an embodiment includes processing circuitry configured to acquire a plurality of X-ray images over time based on X-rays having passed through a subject injected with a contrast agent, to calculate a blood vessel region corresponding to an inflow path of the contrast agent leading to a predetermined position in the blood vessel region, based on a temporal transition of signal intensities of the contrast agent in the blood vessel region represented in the X-ray images, and to perform control to display the blood vessel region corresponding to the inflow path in a display mode that is different from that of a blood vessel region other than the inflow path on a display.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 14, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Mika Takaya, Shingo Abe, Ko Fuchigami, Ryoichi Nagae, Takuya Sakaguchi
  • Patent number: 11116261
    Abstract: A medical work support system according to an embodiment includes an interface apparatus, a reception unit, and a control unit. The interface apparatus accepts operation by the user, outputs a signal corresponding to the accepted operation, and is detachably attached to wearing clothing configured to be worn by the user. The reception unit receives a signal output from the interface apparatus. The control unit executes predetermined processing based on a reception signal received by the reception unit.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: September 14, 2021
    Assignee: Canon Medical Systems Corporation
    Inventors: Yoshimasa Kobayashi, Reiko Hashimoto, Takuya Sakaguchi, Kyojiro Nambu
  • Publication number: 20210278493
    Abstract: A magnetic resonance imaging method according to an embodiment is a method for implementing a multi-shot Fast Spin Echo method. The method includes acquiring, for a k-space divided into a plurality of segments with respect to a phase encode direction, one of the segments including a central region of the k-space with one shot, wherein, during the one-shot acquisition for the central region of the k-space, refocus pulses corresponding to a first time period among refocus pulses applied a plurality of times have a flip angle decreasing tendency, and refocus pulses corresponding to a second time period following the first time period among the refocus pulses applied the plurality of times have a flip angle maintaining or increasing tendency.
    Type: Application
    Filed: February 19, 2021
    Publication date: September 9, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroki KONDO, Masanori OZAKI, Masaaki UMEDA
  • Publication number: 20210279863
    Abstract: A medical image data processing apparatus comprises processing circuitry configured to: receive medical image data in respect of at least one subject; receive non-image data; generate a filter based on the non-image data; and apply the filter to the medical image data, wherein the filter is configured to limit a region of the medical image data.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 9, 2021
    Applicants: The University Court of the University of Edinburgh, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Grzegorz JACENKĂ“W, Sotirios TSAFTARIS, Brian MOHR, Alison O'NEIL, Aneta LISOWSKA
  • Publication number: 20210279918
    Abstract: A medical information processing apparatus according to an embodiment includes a processing circuit. The processing circuit is configured: to generate, on the basis of first data obtained in a first imaging process, second data equivalent to data obtained in an imaging process performed under an image taking condition different from that of the first imaging process; to generate, on the basis of quality of the second data, assistance information to assist reviewing related to a second imaging process scheduled to be executed later than the first imaging process under an image taking condition different from that of the first imaging process; and to cause a display circuit to display the assistance information prior to the execution of the second imaging process.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kusuto KOGA, Kazuki GATAYAMA, Katsuhiko ISHIDA, Tadatsugu NUNOME, Ryusei SAIKI
  • Patent number: 11112470
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes data acquisition circuitry configured to generate magnetic resonance data; a digital encoder connected to receive the magnetic resonance data and configured to digitally encode the magnetic resonance data using an encoding scheme having a spectral null approximately at the Larmor frequency; and an electric data transmission line connected to transmit the digitally encoded magnetic resonance data.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: September 7, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yoshinori Hamamura, Mark Spring, Ernie Zepeda