Patents by Inventor Itsuki Kuga

Itsuki Kuga 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: 10456106
    Abstract: According to one embodiment, a position detection unit detects position information of an ultrasonic probe including ultrasonic transducers, with reference to a reference position. A transmission/reception unit supplies a driving signal to each transducer and generates a reception signal based on a reception echo signal generated by the transducer. Based on the reception signal, a three-dimensional data generation unit generates first three-dimensional data, in which a region corresponding to a living body tissue is specified by a specifying unit. A setting unit sets a first viewpoint based on the position information and specified region. An image generation unit generates a rendering image by rendering processing using the first viewpoint and first three-dimensional data.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 29, 2019
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Go Tanaka, Kazutoshi Sadamitsu, Koichiro Kurita, Eiji Goto, Itsuki Kuga, Junho Cha
  • Patent number: 10420534
    Abstract: According to one embodiment, an ultrasonic diagnostic device includes a first rendering unit, a second rendering unit, a superimposition processing unit, a display control unit. The first rendering unit generates a first rendering image according to a first rendering method based on volume data collected by three-dimensionally scanning a subject with ultrasonic waves. The second rendering unit generates a second rendering image according to a second rendering method that is different from the first rendering method, based on the volume data. The superimposition processing unit generates a superimposed image in which at least a part of the first rendering image and a part of the second rendering image are superimposed on each other. The display control unit causes a display device to display the superimposed image. The superimposition processing unit adjusts a superimposition ratio of the first and second rendering images in the superimposed image.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: September 24, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Itsuki Kuga, Magnus Wahrenberg
  • Patent number: 9734621
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a rendering controller, a detector, and a voxel data generator. The rendering controller divides three-dimensional data constituted by voxel data into a plurality of slice regions, rearranges the slice regions based on a sight line direction in which the voxel data is observed, and performs volume rendering on the voxel data in which the slice regions have been rearranged so as to generate image data. The detector detects image quality information indicating image quality of image data that is generated by the rendering controller. The voxel data generator rearranges the voxel data constituting the three-dimensional data based on the image quality information detected by the detector based on the sight line direction.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: August 15, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Itsuki Kuga
  • Patent number: 9704284
    Abstract: A medical image diagnostic apparatus according to an embodiment includes a setting unit, a rendering unit, and a display controller. The setting unit sets a viewpoint position and a calculation terminal position different from the viewpoint position on an image of a subject. The rendering unit performs rendering processing on, as a target, a range ahead of the calculation terminal position in a direction toward the calculation terminal position from the viewpoint position based on volume data of the subject so as to generate a rendering image. The display controller causes the rendering image to be displayed on a display unit.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: July 11, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Itsuki Kuga, Laurent Lessieux
  • Patent number: 9427212
    Abstract: In an ultrasonic diagnostic apparatus according to an embodiment, a direction determining unit determines a moving direction of an ultrasonic probe. A scanning control unit controls a transmitting and receiving unit so as to repeatedly perform first scanning for acquiring first image data by transmitting and receiving an ultrasonic signal in a first direction and second scanning for acquiring second image data by transmitting and receiving the ultrasonic signal in a second direction inclined toward the moving direction with respect to the first direction. An image superimposing unit generates panoramic image data by superimposing a plurality of pieces of first image data acquired through the first scanning. A display control unit displays the second image data together with the panoramic image data or the first image data on a display unit during scanning.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: August 30, 2016
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Koichiro Kurita, Jiro Higuchi, Osamu Nakajima, Takayuki Gunji, Itsuki Kuga
  • Patent number: 9414807
    Abstract: An ultrasound diagnosis system, a medical image display apparatus and displaying method that simultaneously acquires virtual endoscopy image data and multi-planar-reconstruction (MPR) image data of a diagnosing target region based on the volume data acquired from an object. Virtual endoscopy image data is generated by setting up a viewing point and a viewing direction on a volume data acquired from the object. A marker is provided on a target region of a lumen organ shown in the virtual endoscopy image data for setting up an observing direction. A reference line started from the volume data is set up along an observing direction. By comparing a voxel value of the volume data that is crossing to the reference line with a prescribed threshold value, a reference point where a surface of the diagnosing target region crosses the reference line is set up to the volume data.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: August 16, 2016
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Kenji Hamada, Yoshitaka Mine, Itsuki Kuga, Eiichi Shiki
  • Patent number: 9380999
    Abstract: According to one embodiment, there is provided an ultrasonic diagnostic apparatus includes a data acquisition unit configured to scan a three-dimensional region in a subject having a contrast agent injected therein over a predetermined period by using ultrasonic waves and to thereby acquire ultrasonic data concerning the three-dimensional region over the predetermined period, a volume data generation unit configured to generate first volume data in each time phase in an analysis period by using the ultrasonic data concerning the three-dimensional region over the analysis period in the predetermined period and to generate second volume data indicative of contrast agent temporal information about the analysis period and third volume data indicative of a contrast agent characteristic amount at each position in the three-dimensional region in the analysis period, and an image generation unit configured to generate a projected image by using the second volume data and the third volume data.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: July 5, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yoshida, Itsuki Kuga
  • Publication number: 20150208039
    Abstract: A medical image diagnostic apparatus according to an embodiment includes a setting unit, a rendering unit, and a display controller. The setting unit sets a viewpoint position and a calculation terminal position different from the viewpoint position on an image of a subject. The rendering unit performs rendering processing on, as a target, a range ahead of the calculation terminal position in a direction toward the calculation terminal position from the viewpoint position based on volume data of the subject so as to generate a rendering image. The display controller causes the rendering image to be displayed on a display unit.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 23, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Itsuki KUGA, Laurent LESSIEUX
  • Publication number: 20150164475
    Abstract: According to one embodiment, an ultrasonic diagnostic device includes a first rendering unit, a second rendering unit, a superimposition processing unit, a display control unit. The first rendering unit generates a first rendering image according to a first rendering method based on volume data collected by three-dimensionally scanning a subject with ultrasonic waves. The second rendering unit generates a second rendering image according to a second rendering method that is different from the first rendering method, based on the volume data. The superimposition processing unit generates a superimposed image in which at least a part of the first rendering image and a part of the second rendering image are superimposed on each other. The display control unit causes a display device to display the superimposed image. The superimposition processing unit adjusts a superimposition ratio of the first and second rendering images in the superimposed image.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Itsuki KUGA, Magnus WAHRENBERG
  • Publication number: 20150139521
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a rendering controller, a detector, and a voxel data generator. The rendering controller divides three-dimensional data constituted by voxel data into a plurality of slice regions, rearranges the slice regions based on a sight line direction in which the voxel data is observed, and performs volume rendering on the voxel data in which the slice regions have been rearranged so as to generate image data. The detector detects image quality information indicating image quality of image data that is generated by the rendering controller. The voxel data generator rearranges the voxel data constituting the three-dimensional data based on the image quality information detected by the detector based on the sight line direction.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Itsuki Kuga
  • Publication number: 20140031687
    Abstract: In an ultrasonic diagnostic apparatus according to an embodiment, a direction determining unit determines a moving direction of an ultrasonic probe. A scanning control unit controls a transmitting and receiving unit so as to repeatedly perform first scanning for acquiring first image data by transmitting and receiving an ultrasonic signal in a first direction and second scanning for acquiring second image data by transmitting and receiving the ultrasonic signal in a second direction inclined toward the moving direction with respect to the first direction. An image superimposing unit generates panoramic image data by superimposing a plurality of pieces of first image data acquired through the first scanning. A display control unit displays the second image data together with the panoramic image data or the first image data on a display unit during scanning.
    Type: Application
    Filed: October 3, 2013
    Publication date: January 30, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Koichiro KURITA, Jiro HIGUCHI, Osamu NAKAJIMA, Takayuki GUNJI, Itsuki KUGA
  • Patent number: 8519998
    Abstract: A transmitter/receiver transmits and receives ultrasonic waves to and from a desired region of a subject via an ultrasonic probe. A signal processor obtains a plurality of physical quantities from signals outputted by the transmitter/receiver having received ultrasonic echoes from the subject. A voxel-value generator generates a voxel value containing the plurality of physical quantities. An image generator generates a three-dimensional image by using the plurality of physical quantities including any of the rate, power value or dispersion of a blood flow contained in the voxel value and sequentially executing a rendering process on each voxel. A display controller controls a display to display the generated three-dimensional image.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 27, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Shinichi Hashimoto, Itsuki Kuga, Eiichi Shiki
  • Publication number: 20130102903
    Abstract: According to one embodiment, a position detection unit detects position information of an ultrasonic probe including ultrasonic transducers, with reference to a reference position. A transmission/reception unit supplies a driving signal to each transducer and generates a reception signal based on a reception echo signal generated by the transducer. Based on the reception signal, a three-dimensional data generation unit generates first three-dimensional data, in which a region corresponding to a living body tissue is specified by a specifying unit. A setting unit sets a first viewpoint based on the position information and specified region. An image generation unit generates a rendering image by rendering processing using the first viewpoint and first three-dimensional data.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Inventors: Go TANAKA, Kazutoshi SADAMITSU, Koichiro KURITA, Eiji GOTO, Itsuki KUGA, Junho CHA
  • Publication number: 20110245675
    Abstract: According to one embodiment, there is provided an ultrasonic diagnostic apparatus includes a data acquisition unit configured to scan a three-dimensional region in a subject having a contrast agent injected therein over a predetermined period by using ultrasonic waves and to thereby acquire ultrasonic data concerning the three-dimensional region over the predetermined period, a volume data generation unit configured to generate first volume data in each time phase in an analysis period by using the ultrasonic data concerning the three-dimensional region over the analysis period in the predetermined period and to generate second volume data indicative of contrast agent temporal information about the analysis period and third volume data indicative of a contrast agent characteristic amount at each position in the three-dimensional region in the analysis period, and an image generation unit configured to generate a projected image by using the second volume data and the third volume data.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tetsuya YOSHIDA, Itsuki Kuga
  • Publication number: 20100185094
    Abstract: An ultrasound diagnosis system, a medical image display apparatus and displaying method that simultaneously acquires virtual endoscopy image data and multi-planar-reconstruction (MPR) image data of a diagnosing target region based on the volume data acquired from an object. Virtual endoscopy image data is generated by setting up a viewing point and a viewing direction on a volume data acquired from the object. A marker is provided on a target region of a lumen organ shown in the virtual endoscopy image data for setting up an observing direction. A reference line started from the volume data is set up along an observing direction. By comparing a voxel value of the volume data that is crossing to the reference line with a prescribed threshold value, a reference point where a surface of the diagnosing target region crosses the reference line is set up to the volume data.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 22, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kenji HAMADA, Yoshitaka MINE, Itsuki KUGA, Eiichi SHIKI
  • Publication number: 20090015587
    Abstract: A transmitter/receiver transmits and receives ultrasonic waves to and from a desired region of a subject via an ultrasonic probe. A signal processor obtains a plurality of physical quantities from signals outputted by the transmitter/receiver having received ultrasonic echoes from the subject. A voxel-value generator generates a voxel value containing the plurality of physical quantities. An image generator generates a three-dimensional image by using the plurality of physical quantities including any of the rate, power value or dispersion of a blood flow contained in the voxel value and sequentially executing a rendering process on each voxel. A display controller controls a display to display the generated three-dimensional image.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Shinichi Hashimoto, Itsuki Kuga, Eiichi Shiki