Patents by Inventor Takuya Sakaguchi

Takuya Sakaguchi 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: 9339251
    Abstract: According to one embodiment, an X-ray imaging apparatus includes an X-ray image acquisition unit, a reference position acquisition part and a condition setting part. The X-ray image acquisition unit is configured to acquire frames of two dimensional X-ray image data corresponding to mutually different X-ray exposure directions using an imaging system. The reference position acquisition part is configured to obtain a spatially criterial direction and a spatially criterial position with reference to the frames of the X-ray image data. The condition setting part is configured to automatically set at least one of a control condition of the imaging system and an image processing condition of an X-ray image, based on information according to the criterial direction and the criterial position.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: May 17, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Kyojiro Nambu
  • Publication number: 20160086319
    Abstract: An image processing apparatus according to an embodiment includes a first frequency image generating circuitry, a second frequency image generating circuitry, a signal detecting circuitry, and a display image generating circuitry. The first frequency image generating circuitry performs, on an object pixel of processing, processing based on a pixel value of a neighboring pixel positioned close to the pixel to generate first frequency image data including a specific contrast component and a first frequency component on image data. The second frequency image generating circuitry performs processing of subtracting the first frequency image data from the image data to generate second frequency image data including a second frequency component. The signal detecting circuitry detects a linear signal derived from a linear structural object from the second frequency image data. The display image generating circuitry generates a display image according to the linear signal detected.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Applicants: National Institute of Technology, Toshiba Medical Systems Corporation
    Inventors: Michitaka HONDA, Kunio SHIRAISHI, Takuya SAKAGUCHI
  • Publication number: 20160078621
    Abstract: According to one embodiment, an image processing device includes processing circuitry. The processing circuitry sequentially acquires image data of time-sequential DSA images of an object, and acquires a parameter value for each pixel based on temporal change of a pixel value of the each pixel corresponding to the same region of the object in the sequentially acquired image data of time-sequential DSA images. Further, the processing circuitry sequentially generates image data of parameter images in such a manner that identification information according to the parameter value is assigned to the each pixel corresponding to the same region of the object, each time image data of a DSA image of the latest time phase being acquired.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 17, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Ryoichi NAGAE, Yasuto HAYATSU, Yoshiaki llJIMA, Naoki UCHIDA, Yoshinori SHIMIZU, Yuichiro WATANABE, Takuya SAKAGUCHI
  • Patent number: 9259199
    Abstract: According to one embodiment, an image processing apparatus includes a storage unit, a specifying unit, an extraction unit and a setting processing unit. The storage unit stores first X-ray image data in which a blood vessel of an object is not visually enhanced, and second X-ray image data in which the blood vessel is visually enhanced. The specifying unit specifies a catheter image included in the first fluoroscopic image by performing image processing of the first X-ray image data. The extraction unit extracts a blood vessel region included in the second fluoroscopic image by performing image processing of the second X-ray image data. The setting processing unit sets a region of interest based on the position of end point of the catheter.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 16, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Jingwu Yao, Takuya Sakaguchi
  • Publication number: 20160038110
    Abstract: A supporting device according to an embodiment includes a holder, a supporter, and a controller. The holder holds a terminal device that includes a detection surface that detects an input operation by an operator. The supporter is connected to the holder and is movably provided so as to locate a terminal device at a predetermined position, the terminal device being held by the holder. The controller fixes the supporter in a state where the supporter is located at a predetermined position when the detection surface detects the input operation.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 11, 2016
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Yoshiyasu HAYASHI, Shigeyuki ISHll, Kousuke SAKAUE, Takuya SAKAGUCHI
  • Patent number: 9202301
    Abstract: A medical image display apparatus according to an embodiment includes a display unit, a generating unit, and a display controlling unit. The display unit three-dimensionally displays a group of disparity images generated from three-dimensional medical image data. The generating unit determines a display position of the group of disparity images to be three-dimensionally displayed on the display unit in terms of a depth direction with respect to a display surface of the display unit and generates the group of disparity images from the three-dimensional medical image data so as to realize the determined display position. The display controlling unit three-dimensionally displays the group of disparity images and two-dimensionally displays a medical image different from the group of disparity images, on the display unit.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 1, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Manabu Tanaka, Nobuyuki Matsumoto
  • Patent number: 9189848
    Abstract: According to one embodiment, a medical image processing apparatus includes an X-ray image obtaining unit, a marker detection unit, a contrast image generation unit and a display image generation unit. The X-ray image obtaining unit obtains X-ray contrast image data and X-ray fluoroscopic image data. The marker detection unit detects positions of a marker from the X-ray contrast image data, or the X-ray contrast image data and the X-ray fluoroscopic image data. The marker is attached to a device. The contrast image generation unit generates X-ray contrast image data for a combination with a movement correction making the positions of the marker be positions which can be regarded as a same position. The display image generation unit generates X-ray image data for a display by combining the X-ray contrast image data for the combination with the X-ray fluoroscopic image data.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: November 17, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Kyojiro Nambu, Shingo Abe, Kunio Shiraishi
  • Publication number: 20150289831
    Abstract: An X-ray diagnostic apparatus in embodiments includes a calculating module, a generator, and a changing module. The calculating module calculates feature quantity concerning a flow of a contrast material for each pixel in a predetermined section based on temporal transition in signal intensity of the contrast material in a predetermined section of a plurality of X-ray images radiographed with time by using the contrast material. The generator generates a first color image in which color information corresponding to the feature quantity concerning the flow of the contrast material in a first section as the predetermined section is reflected in each pixel. The changing module changes the predetermined section to a second section that is within the first section.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 15, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takuya SAKAGUCHI, Hisato Takemoto, Yuichiro Watanabe, Ryuji Zaiki, Ryoichi Nagae
  • Publication number: 20150272529
    Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.
    Type: Application
    Filed: March 17, 2015
    Publication date: October 1, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuo IMAGAWA, Takuya SAKAGUCHI, Ryuji ZAIKI
  • Publication number: 20150265222
    Abstract: A medical information processing apparatus according to embodiments includes processing circuitry. The processing circuitry configured to generate display information indicating a state of a first region in a tissue of a subject and a state of a second region in a feeding vessel of the first region, depending on flow reserve of the first region and fractional flow reserve of the second region. The processing circuitry configured to execute control such that the display information generated is shown by a display unit.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 24, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Takuya SAKAGUCHI
  • Publication number: 20150223769
    Abstract: According to an embodiment, a medical image display apparatus is accessible to an external device that stores data of a plurality of X-ray images with different imaging angles, or includes a storage unit that stores the data of the plurality of X-ray images. The medical image display apparatus includes a display, a distance specifying unit, an image selector and a display controller. The distance specifying unit specifies a distance of a user to the display. The image selector selects, from the plurality of X-ray images, two X-ray images with an angular difference determined based on the distance of the user. The display controller displays the selected two X-ray images on the display for stereopsis by the user.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Kazuo IMAGAWA, Takuya SAKAGUCHI, Ryuji ZAIKI
  • Publication number: 20150228115
    Abstract: A medical-image processing apparatus and a medical-image diagnostic apparatus according to an embodiment include an acquisition unit, a generation unit, an identification unit, and a display control unit. The acquisition unit acquires a medical image containing a blood vessel collected by the medical-image diagnostic apparatus. The generation unit generates an anatomical structure model based on the medical image acquired by the acquisition unit. The identification unit identifies a position, on the medical image, of an index relating to blood flow analyzed through fluid analysis using the anatomical structure model. The display control unit displays the position of the index on the medical image, and also displays the index associated with the position of the index on the medical image.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Satoshi WAKAI, Takuya Sakaguchi, Akihito Takahashi
  • Patent number: 9095258
    Abstract: According to one embodiment, an X-ray imaging apparatus includes an X-ray generation unit, an X-ray collimator, a dose detection unit, and a dose reduction rate calculation unit. The X-ray generation unit irradiates the object with X-rays. The X-ray collimator limits an X-ray irradiation range of the X-ray generation unit. The dose detection unit detects the X-rays that have passed through the X-ray collimator. The dose reduction rate calculation unit calculates a reduction rate of an exposure dose of the object based on a value detected by the dose detection unit in X-ray imaging before the X-ray irradiation range is limited by the X-ray collimator and a value detected by the dose detection unit in X-ray imaging after the X-ray irradiation range is limited by the X-ray collimator.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: August 4, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Manabu Tanaka, Takayuki Ishikawa, Hisato Takemoto, Koichiro Watanabe
  • Publication number: 20150213215
    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: Application
    Filed: April 8, 2015
    Publication date: July 30, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yoshimasa KOBAYASHI, Reiko Hashimoto, Takuya Sakaguchi, Kyojiro Nambu
  • Publication number: 20150193932
    Abstract: An image processing system according to an embodiment includes a first aligning unit, an output unit, a second aligning unit, and a display unit. The first aligning unit aligns first three-dimensional medical image data with second three-dimensional medical image data. The output unit outputs, as output data, data obtained by adding alignment information to the first three-dimensional medical image data and to the second three-dimensional medical image data or synthetic data obtained by aligning and synthesizing the first three-dimensional medical image data with the second three-dimensional medical image data. The second aligning unit receives the output data and aligns the second three-dimensional medical image data with one or a plurality of pieces of X-ray image data. The display unit displays image data obtained by aligning the first three-dimensional medical image data with X-ray image data based on an alignment result.
    Type: Application
    Filed: March 19, 2015
    Publication date: July 9, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Shinichi HASHIMOTO, Hiroyuki OHUCHI, Takuya SAKAGUCHI, Ko FUCHIGAMI
  • Publication number: 20150193931
    Abstract: An image processing apparatus according to an embodiment includes an acquiring unit and a determination unit. The acquiring unit acquires information of a relative position between a radiographic space where a subject is radiographed by an X-ray diagnosis apparatus and a scanning space where the subject is scanned by an ultrasound probe. The determination unit determines a position almost the same as the position scanned by the ultrasound probe in the radiographic space, according to the information of the relative position acquired by the acquiring unit. The acquiring unit acquires the information of the relative position based on an X-ray image radiographed by the X-ray diagnosis apparatus.
    Type: Application
    Filed: March 19, 2015
    Publication date: July 9, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Ko FUCHIGAMI, Takuya Sakaguchi, Shinichi Hashimoto, Hiroyuki Ohuchi
  • Publication number: 20150193962
    Abstract: An image processing system according to an embodiment includes an input unit, an output unit, an acquiring unit, and a display unit. The input unit receives setting of a landmark in first medical image data obtained by capturing a certain tissue of a subject. The output unit outputs data including information of the position of the landmark in the first medical image data as output data. The acquiring unit receives the output data and acquires, based on one or a plurality of pieces of second medical image data obtained by capturing the certain tissue of the subject and the position of the landmark, three-dimensional position information of the landmark in a three-dimensional capturing space of the second medical image data. The display unit displays image data obtained by superimposing the first medical image data on the second medical image data, based on the three-dimensional position information.
    Type: Application
    Filed: March 20, 2015
    Publication date: July 9, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroyuki OHUCHI, Shinichi Hashimoto, Takuya Sakaguchi, Ko Fuchigami
  • Patent number: 9072490
    Abstract: In one embodiment, an image processing apparatus includes a difference image generating unit and a display controlling unit. The difference image generating unit generates a difference image by calculating a difference in a second X-ray transmission image from a first X-ray transmission image, the second X-ray transmission image being an image in which a myocardial tissue of an examined subject is not opacified and the first X-ray transmission image being an image in which the myocardial tissue of the examined subject is opacified with a contrast agent that has been injected into a coronary artery. The display controlling unit exercises control so that a predetermined display unit displays the difference image that has been generated by the difference image generating unit.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: July 7, 2015
    Assignees: Toshiba Medical Systems Corporation, The Johns Hopkins University
    Inventors: Takuya Sakaguchi, Hisato Takemoto, Joao A. C. Lima, Richard T. George, Jeff Trost
  • Publication number: 20150173698
    Abstract: An image processing apparatus according to an embodiment includes a determination unit and a display control unit. The determination unit that determines whether an X-ray image serving as a first image is to be displayed as a moving image or a still image and a second image is to be displayed as a moving image or a still image according to display states of the images. The display control unit that controls a display unit to display thereon at least any one of superimposed images of a combination of a moving image and a moving image, a combination of a moving image and a still image, and a combination of a still image and a moving image of the X-ray image and the second image, according to the determination made by the determination unit.
    Type: Application
    Filed: March 10, 2015
    Publication date: June 25, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Ko Fuchigami, Shinichi Hashimoto, Hiroyuki Ohuchi
  • Publication number: 20150178916
    Abstract: According to one embodiment, a medical image processing apparatus includes an image acquisition part and a data processing part. The image acquisition part is configured to obtain X-ray image data of an object including not less than three phantoms whose X-ray absorption factors are different from each other. The data processing part is configured to generate corrected X-ray image data of the object by correcting the obtained X-ray image data or other X-ray image data. The obtained X-ray image data or the other X-ray image data are corrected using a nonlinear function obtained based on pixel values of the obtained X-ray image data. The pixel values correspond to the phantoms.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 25, 2015
    Applicants: Toshiba Medical Systems Corporation, Fujita Health University
    Inventors: Takuya SAKAGUCHI, Takashi Ichihara