Patents by Inventor Toshiya Waku

Toshiya Waku 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).

  • Publication number: 20210321966
    Abstract: An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry determines a concentration of a contrast agent in contrast-enhanced image collection based on first reference information in which a recommended contrast in a contrast-enhanced image is associated with each region of interest to be subject to collection of the contrast-enhanced image, and on second reference information that indicates a relation among a generation condition of an X-ray, a concentration of a contrast agent, and a contrast. The processing circuitry calculates setting information of an injector to inject a contrast agent to the subject based on the determined concentration of a contrast agent.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 21, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Shumpei OHASHI, Junichi YAMAGISHI, Naotaka SATO, Jun SAKAKIBARA, Yusuke KANNO, Toshiya WAKU
  • Publication number: 20200334815
    Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry specifies, before position alignment between a first X-ray image and a second X-ray image which is acquired with a device inserted, a device area candidate in the second X-ray image as a candidate of an area where the device appears. The processing circuitry performs the position alignment using first processing of removing the specified device area candidate or second processing of reducing a contribution of the specified device area candidate.
    Type: Application
    Filed: April 21, 2020
    Publication date: October 22, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hirona OIKAWA, Shingo ABE, Kunio SHIRAISHI, Toshiya WAKU, Shumpei OHASHI, Akihito TAKAHASHI, Saki HASHIMOTO, Jumpei OGASAWARA
  • Patent number: 9788729
    Abstract: A storage unit stores volume data including a blood vessel region. An extracting unit extracts the blood vessel region from the volume data. A specifying unit specifies a position of a region of interest in the blood vessel region and a deflection direction of a blood vessel region included in the region of interest. A determining unit determines a viewing position and a viewing direction based on the position of the region of interest and the deflection direction. A generating unit generates image data concerning the viewing position and the viewing direction based on the volume data. A display unit displays an image represented by the image data.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 17, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Toshiya Waku, Hitoshi Yamagata
  • Patent number: 9526469
    Abstract: In an embodiment, an X-ray diagnostic apparatus includes an image capturing unit which captures an X-ray image of a subject on a tabletop, a movement mechanism which moves the tabletop and the image capturing unit relative to each other, an acquisition unit which acquires device position information on the tabletop and the image capturing unit in capturing the X-ray image, a display unit which displays the X-ray image captured by the image capturing unit, an input unit which inputs added information to be added to the X-ray image displayed on the display unit, and a management unit which manages the X-ray image captured by the image capturing unit, the device position information acquired by the acquisition unit, and the added information inputted by the input unit in association with one another.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: December 27, 2016
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Kazuo Imagawa, Masanori Matsumoto, Toshiya Waku, Keisuke Nakamura, Naotaka Sato
  • Patent number: 9384545
    Abstract: An X-ray image diagnosis apparatus according to an embodiment includes: an image processing unit configured to create a synthesized image by synthesizing an X-ray image of a region of interest inside a given region and an X-ray image of a peripheral region excluding the region of interest in the given region, wherein when the region of interest is changed, the image processing unit acquires an X-ray image of a changed region which is in the region of interest before the change and is changed to the peripheral region, from the X-ray image of the region of interest before the change, and then superimposes the X-ray image of the changed region on the X-ray image of the peripheral region to create the synthesized image.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: July 5, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hisayuki Uehara, Toshiya Waku, Mitsuru Sakata, Yoshiyasu Hayashi
  • Publication number: 20160058399
    Abstract: An X-ray diagnostic apparatus according to an embodiment controls the imaging system in order to generate an X-ray image in which an imaging center line connecting a focus of an X-ray tube and a center position of an X-ray detection surface has a tilt angle of smaller than 90° with respect to a guideline connecting an input insertion target position and an input arrival target position; extracts from the image, a region of the needle inserted in an object; specifies an apparent length of the needle based on the region of the needle extracted from the X-ray image having the tilt angle of smaller than 90°; calculates an estimated insertion length of the needle inserted in the object based on the apparent length of the needle and the tilt angle; and notifies a user of information for assisting an insertion operation of the needle based on the estimated length.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yusuke NARABU, Toshiya WAKU, Ko FUCHIGAMI
  • Patent number: 9230323
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes processing circuitry. The processing circuitry generates a plurality of contrast images sequentially based on X-rays after administration of a contrast medium to the object, determines a monitoring region in the plurality of contrast images, monitors change in signal strength of each of pixels included in the monitoring region, and determines whether or not the signal strength of each of the pixels included in the monitoring region satisfies a specified condition. The processing circuitry controls an X-ray generator based on a result of the determination so as to reduce an X-ray dose or turn off irradiation. The processing circuitry generates a parametric image based on a feature amount determined by change in signal strength of each of pixels of a part of the plurality of contrast images sequentially generated before the X-ray generator is controlled based on the result of the determination.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: January 5, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tadaharu Kobayashi, Toshiya Waku, Keisuke Nakamura, Kenji Mizutani
  • Publication number: 20150332455
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes processing circuitry. The processing circuitry generates a plurality of contrast images sequentially based on X-rays after administration of a contrast medium to the object, determines a monitoring region in the plurality of contrast images, monitors change in signal strength of each of pixels included in the monitoring region, and determines whether or not the signal strength of each of the pixels included in the monitoring region satisfies a specified condition. The processing circuitry controls an X-ray generator based on a result of the determination so as to reduce an X-ray dose or turn off irradiation. The processing circuitry generates a parametric image based on a feature amount determined by change in signal strength of each of pixels of a part of the plurality of contrast images sequentially generated before the X-ray generator is controlled based on the result of the determination.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 19, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tadaharu KOBAYASHI, Toshiya WAKU, Keisuke NAKAMURA, Kenji MIZUTANI
  • Patent number: 8761471
    Abstract: A medical image diagnosis device according to an embodiment includes: a mask image generation unit that generates a plurality of mask images that are different in terms of time; a first image generation unit that calculates differences between a plurality of the mask images, and extracts an image of a preceding device that is placed and kept in a blood vessel; a second image generation unit that generates a real-time fluoroscopic image depicting a situation where an insertion device is being inserted into a blood vessel, calculates a difference between the real-time fluoroscopic image and the mask image, and generates an image of the insertion device; an image synthesis unit that synthesizes images generated by the first image generation unit and the second image generation unit; and a display unit that displays an image generated by the image synthesis unit.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: June 24, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Masahiro Ozawa, Toshiya Waku, Masanori Matsumoto
  • Publication number: 20140112444
    Abstract: In an embodiment, an X-ray diagnostic apparatus includes an image capturing unit which captures an X-ray image of a subject on a tabletop, a movement mechanism which moves the tabletop and the image capturing unit relative to each other, an acquisition unit which acquires device position information on the tabletop and the image capturing unit in capturing the X-ray image, a display unit which displays the X-ray image captured by the image capturing unit, an input unit which inputs added information to be added to the X-ray image displayed on the display unit, and a management unit which manages the X-ray image captured by the image capturing unit, the device position information acquired by the acquisition unit, and the added information inputted by the input unit in association with one another.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 24, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kazuo IMAGAWA, Masanori Matsumoto, Toshiya Waku, Keisuke Nakamura, Naotaka Sato
  • Publication number: 20130136332
    Abstract: An X-ray image diagnosis apparatus according to an embodiment includes: an image processing unit configured to create a synthesized image by synthesizing an X-ray image of a region of interest inside a given region and an X-ray image of a peripheral region excluding the region of interest in the given region, wherein when the region of interest is changed, the image processing unit acquires an X-ray image of a changed region which is in the region of interest before the change and is changed to the peripheral region, from the X-ray image of the region of interest before the change, and then superimposes the X-ray image of the changed region on the X-ray image of the peripheral region to create the synthesized image.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Inventors: Hisayuki UEHARA, Toshiya Waku, Mitsuru Sakata, Yoshiyasu Hayashi
  • Publication number: 20120148139
    Abstract: A medical image diagnosis device according to an embodiment includes: a mask image generation unit that generates a plurality of mask images that are different in terms of time; a first image generation unit that calculates differences between a plurality of the mask images, and extracts an image of a preceding device that is placed and kept in a blood vessel; a second image generation unit that generates a real-time fluoroscopic image depicting a situation where an insertion device is being inserted into a blood vessel, calculates a difference between the real-time fluoroscopic image and the mask image, and generates an image of the insertion device; an image synthesis unit that synthesizes images generated by the first image generation unit and the second image generation unit; and a display unit that displays an image generated by the image synthesis unit.
    Type: Application
    Filed: October 13, 2011
    Publication date: June 14, 2012
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Masahiro Ozawa, Toshiya Waku, Masanori Matsumoto
  • Publication number: 20100128963
    Abstract: A storage unit stores volume data including a blood vessel region. An extracting unit extracts the blood vessel region from the volume data. A specifying unit specifies a position of a region of interest in the blood vessel region and a deflection direction of a blood vessel region included in the region of interest. A determining unit determines a viewing position and a viewing direction based on the position of the region of interest and the deflection direction. A generating unit generates image data concerning the viewing position and the viewing direction based on the volume data. A display unit displays an image represented by the image data.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 27, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: TOSHIYA WAKU, HITOSHI YAMAGATA
  • Publication number: 20020099571
    Abstract: There is disclosed a medical management system which generally manages an operation situation of each apparatus by a mode called a the, and manages a flow of all medical works executed by the system in executing the medical work relating to a patient in the system as an object.
    Type: Application
    Filed: January 9, 2002
    Publication date: July 25, 2002
    Inventors: Toshiya Waku, Daizo Oikawa