Patents by Inventor Hideaki Ishii

Hideaki Ishii has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11109829
    Abstract: A medical image diagnostic apparatus according to an embodiment includes an estimation unit, an extraction unit, and a specifying unit. The estimation unit estimates a position of a plaque in a blood vessel based on data of CT images constituting a time series, with the blood vessel being enhanced by a contrast medium. The extraction unit extracts regions constituting the blood vessel from the CT images. The specifying unit specifies stress values respectively corresponding to the regions based on a moving displacement due to cardiac pulsation in each of the regions, and specifies an exfoliation risk of the plaque based on an index indicating hardness of the plaque and the stress value in the region corresponding to the position of the plaque.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 7, 2021
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Publication number: 20210059541
    Abstract: A medical apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured: to receive an input of test result information including a test result of each of tests that are related to a biological valve and were carried out at two or more different times; to estimate one of a test time for a follow-up observation of the biological valve and a test time for replacing the biological valve, on the basis of a chronological change in an open/close state of the biological valve derived from the received test result information; and to output the estimated test time.
    Type: Application
    Filed: August 10, 2020
    Publication date: March 4, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Hideaki ISHII
  • Publication number: 20200410726
    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: September 11, 2020
    Publication date: December 31, 2020
    Applicant: Canon Medical Systems Corporation
    Inventors: Hideaki ISHII, Satoshi WAKAI, Kazumasa ARAKITA, Takuma IGARASHI, Yasuko FUJISAWA, Shigeo KAMINAGA, Kenji HIROHATA, Junichiro OOGA
  • Patent number: 10842446
    Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry collects pieces of past image data in a plurality of time phases that contain at least a part of a coronary artery of a heart and new image data in one time phase that contains at least a part of the coronary artery and has been acquired after acquisition of the pieces of past image data. The processing circuitry performs registration processing between the pieces of collected past image data and registration processing between any one of the pieces of past image data and the new image data. The processing circuitry generates pieces of synthesized image data corresponding to the time phases of the pieces of past image data other than the past image data on which the registration processing with the new image data has been executed by reflecting a shape of the new image data based on results of the registration processing.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: November 24, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Takuya Sakaguchi, Kazumasa Arakita
  • Publication number: 20200349708
    Abstract: There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takuma IGARASHI, Satoshi Wakai, Kazumasa Arakita, Hideaki Ishii, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Odga
  • Publication number: 20200327979
    Abstract: A medical information processing apparatus of an embodiment includes processing circuitry. The processing circuitry acquires a plurality of pieces of output data respectively output from a plurality of analysis processes to which medical image data is input as input data. The processing circuitry selectively extracts, from the pieces of output data, a plurality of pieces of output data based on an extraction condition. The processing circuitry performs control to display a plurality of pieces of information corresponding to the pieces of extracted output data and a medical image related to any one piece of the information and generated from the medical image data.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hideaki ISHII, Shigeo KAMINAGA
  • Publication number: 20200312012
    Abstract: A medical image processing apparatus of an embodiment includes processing circuitry. The processing circuitry is configured to acquire time-series medical images including blood vessels of an examination subject, the time-series medical images being fluoroscopically captured in at least one direction at a plurality of points in time, generate a blood vessel shape model including time-series variation information about the blood vessels in an analysis region of the blood vessels on the basis of the acquired time-series medical images, and perform fluid analysis of blood flowing through the blood vessels on the basis of the generated blood vessel shape model.
    Type: Application
    Filed: March 30, 2020
    Publication date: October 1, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Hideaki ISHII
  • Patent number: 10776960
    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: Grant
    Filed: March 26, 2019
    Date of Patent: September 15, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Patent number: 10748285
    Abstract: There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 18, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Takuma Igarashi, Satoshi Wakai, Kazumasa Arakita, Hideaki Ishii, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Patent number: 10747847
    Abstract: According to the embodiments, a medical image diagnosis apparatus which is accessible to an external medical scanner includes processing circuitry. The processing circuitry acquires from the medical scanner medical image data by imaging a subject based on a protocol which is a predetermined imaging procedure. The processing circuitry acquires from a sensor biometric information of at least when the subject is being photographed. The processing circuitry extracts characteristic information of the subject by processing the biometric information acquired up until a previous study. The processing circuitry assists a design of a protocol for a current study based on the characteristic information of the subject.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: August 18, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Manabu Hiraoka
  • Publication number: 20200177058
    Abstract: A motor includes a holder having an annular plate shape with a plate thickness in an axial direction of a rotor housing, and including a flange section disposed so the rotor housing rotates at an inner side of the flange section, a center piece including a plate-shaped section opposing the flange section, and a heat sink including a heat dissipation section projecting from the plate-shaped section toward the flange section. The flange section integrates with a flow rectification section including a cooling air flow rectification face extending along a cooling air flow path between the flange section and the plate-shaped section. The heat dissipation section is disposed in the cooling air flow path. The cooling air flow rectification face closely opposes the top of the heat dissipation section. A bulk reduction section is between the cooling air flow rectification face and the flange section opposite of the plate-shaped section.
    Type: Application
    Filed: June 13, 2018
    Publication date: June 4, 2020
    Applicant: DENSO CORPORATION
    Inventors: Ryosuke GOTO, Hideaki ISHII
  • Publication number: 20200113450
    Abstract: A medical information processing system according to an embodiment includes processing circuitry. The processing circuitry acquires a blood-vessel blood flow index in a coronary artery and a myocardial blood flow index in a myocardial region to which the coronary artery supplies blood. The processing circuitry calculates an index indicating a capability to supply the blood to the myocardial region by combining the blood-vessel blood flow index and the myocardial blood flow index.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 16, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takahiko Nishioka, Hideaki Ishii
  • Patent number: 10542950
    Abstract: The medical image diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to: generate medical volume data including bones and an organ; identify, based on the volume data, the organ and an abnormal bone having an abnormal region of the bones; calculate, based on the organ and the abnormal bone of the volume data, an influence rate on the organ by the abnormal bone; and superimpose data indicating the influence rate on the image based on the volume data, thereby displaying the superimposed image on a display.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: January 28, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hideaki Ishii, Yasuyuki Miyoshi, Yukari Sone
  • Patent number: 10478073
    Abstract: A centerline extraction unit extracts at least two coronary artery centerline structures from at least two images respectively corresponding to at least two cardiac phases concerning a heart, an interpolation processing unit interpolates coronary artery centerline structures concerning other cardiac phases from the at least two extracted coronary artery centerline structures to generate coronary artery centerline structures respectively corresponding to a plurality of cardiac phases throughout one heartbeat of the heart, and a displacement distribution calculation unit calculates a plurality of displacement distributions between the respective cardiac phases from a plurality of coronary artery centerline structures throughout the one heartbeat.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: November 19, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Publication number: 20190221008
    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: March 26, 2019
    Publication date: July 18, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hideaki ISHII, Satoshi WAKAI, Kazumasa ARAKITA, Takuma IGARASHI, Yasuko FUJISAWA, Shigeo KAMINAGA, Kenji HIROHATA, Junichiro OOGA
  • Patent number: 10340771
    Abstract: A fan motor including: a motor body; a fan; a controller that includes a circuit board and a circuit element; a heat sink that is attached to the controller and that includes a heat dissipating section; a case body that includes a motor holder, and a center piece supporting the stator, with the heat dissipating section disposed between the center piece and the motor holder and the center piece forming an airflow passage along which airflow passes; an introduction section through which airflow flowing toward the heat dissipating section is introduced; a discharge section through which the airflow that has been introduced through the introduction section is discharged toward the fan side; and a facing section that is disposed at a downstream side of the airflow with respect to the heat dissipating section and that extends in a direction to obstruct the airflow.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 2, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hikaru Otsuka, Yoshikazu Fujii, Akinori Hiroyama, Hideaki Ishii
  • Publication number: 20190189270
    Abstract: A hospital information apparatus according to an embodiment includes a processing circuit. The processing circuit is configured to obtain past information related to a subject for whom an examination order is issued. The processing circuit is configured to set one or more additional examination orders on the basis of an analysis performed on the past information. The processing circuit is configured to determine a proposed order from among the additional examination orders on the basis of a relationship between the examination order and the additional examination orders.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 20, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Hideaki ISHII, Satoshi Wakai
  • Patent number: 10290105
    Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry and a display. The processing circuitry obtains first imaged data taken of a subject and second imaged data taken of the subject on a date/time different from the date/time on which the first imaged data was taken. The processing circuitry generates estimation data by performing an image processing process that changes the first imaged data on the basis of a predetermined change model. The processing circuitry generates a display image indicating the difference between the estimation data and the second imaged data. The display displays the display image.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: May 14, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hideaki Ishii, Shigeharu Ohyu, Naotaka Sakashita
  • Patent number: 10278662
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry performs a fluid analysis using image data including a blood vessel to calculate an index value relating to blood flow in the blood vessel. The processing circuitry specifies a plurality of target sites in the blood vessel in the image data. The processing circuitry changes analysis conditions for the fluid analysis corresponding to the positions of the target sites. The processing circuitry causes a display to display, in a comparative manner, the index value relating to blood flow calculated under the changed analysis conditions for the target sites.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: May 7, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hideaki Ishii, Takuya Sakaguchi
  • Patent number: 10275908
    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: Grant
    Filed: November 10, 2017
    Date of Patent: April 30, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga