Patents by Inventor Kazuya Akaki

Kazuya Akaki 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: 20230200785
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes an image obtaining unit, a contour position obtaining unit, a volume information calculating unit, and a controlling unit. The image obtaining unit obtains a plurality of groups of two-dimensional ultrasound image data each of which is generated by performing ultrasound scans, the ultrasound scans being performed on each of a plurality of predetermined cross-sectional planes, and performed for predetermined time. The contour position obtaining unit obtains, by performing a tracking process over the predetermined time period, time-series data of contour positions, the contour positions being either one of, or both of, a cavity interior and a cavity exterior of a predetermined site. The volume information calculating unit calculates, on a basis of a plurality of the time-series data of contour positions, volume information of the predetermined site. The controlling unit exercises control so as to output the volume information.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yasuhiko ABE, Shinichi HASHIMOTO, Kazuya AKAKI
  • Patent number: 10932753
    Abstract: According to an embodiment, a transmitter transmits a reference signal. A position sensor obtains position information in a three-dimensional space by receiving the reference signal. A controlling unit associates three-dimensional image data generated by a medical image diagnosis apparatus with the three-dimensional space, on the basis of a registration between an arbitrary cross-sectional plane in the three-dimensional image data and a cross-sectional plane scanned by an ultrasound probe. A detecting unit detects if the position of the transmitter has changed within the associated three-dimensional space, on the basis of the position information obtained by the position sensor. A correcting unit corrects a misregistration between a cross-sectional plane in the three-dimensional image data and a cross-sectional plane scanned by the ultrasound probe, on the basis of a change amount of the position of the transmitter.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 2, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Go Tanaka, Kazuya Akaki, Osamu Nakajima, Masaru Ogasawara, Shogo Fukuda
  • Publication number: 20190046153
    Abstract: An ultrasonic diagnostic apparatus according to the present embodiment includes an ultrasonic probe, image generation circuitry, acquisition circuitry, calculation circuitry, guide image generation circuitry, and control circuitry. The ultrasonic probe transmits ultrasonic waves, and receives reflected waves. The image generation circuitry generates cross-section image data based on the reflected waves. The acquisition circuitry acquires, from volume data corresponding to three-dimensional region containing a blood vessel inside the subject, cross-section position information corresponding to the cross-section image data. The calculation circuitry calculates collection position information in the volume data based on a running direction of a blood vessel contained in the volume data, the collection position information corresponding to a position from which blood flow velocity information is collected.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Go TANAKA, Kazuya AKAKI, Eiji GOTO, Koichiro KURITA, Yu IGARASHI
  • Patent number: 10136877
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes a parameter setting unit, a Fly Thru image generating unit, and a controlling unit. The parameter setting unit sets a value of an image quality adjusting parameter used for generating a PVR image obtained by projecting the inside of a lumen from a predetermined viewpoint, on the basis of information about the lumen rendered in an MPR image generated by using volume data. The Fly Thru image generating unit generates the PVR image by using the value of the image quality adjusting parameter that was set. The controlling unit then causes a monitor to display the PVR image.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 27, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Go Tanaka, Kazuya Akaki, Yoshihiro Oomori, Satoshi Matsunaga, Tetsuya Higashi
  • Publication number: 20160367221
    Abstract: An ultrasound diagnosis apparatus generates first data, based on a result of transmission and reception that are executed when a probe is located at a first position of a subject. The apparatus generates second data, based on a result of transmission and reception that are executed when the probe is located at a second position. Under a first constraint on an orientation of a section, the apparatus extracts, from the first data, first sectional image containing a structural object inside the subject and taken along a direction in which the object extends. Under a second constraint on the orientation of a section, the apparatus extracts, from the second data, second sectional image containing the object and taken along a direction in which the object extends. The apparatus generates joined image data composed of at east a part of the first sectional image and the second sectional image joined together.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 22, 2016
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yu IGARASHI, Kazuya AKAKI, Shunsuke SATOH, Go TANAKA, ltsuki KUGA, Takayuki GUNJI, Masaki WATANABE
  • Publication number: 20160095573
    Abstract: An ultrasonic diagnostic apparatus according to the present embodiment includes an ultrasonic probe, image generation circuitry, acquisition circuitry, calculation circuitry, guide image generation circuitry, and control circuitry. The ultrasonic probe transmits ultrasonic waves, and receives reflected waves. The image generation circuitry generates cross-section image data based on the reflected waves. The acquisition circuitry acquires, from volume data corresponding to three-dimensional region containing a blood vessel inside the subject, cross-section position information corresponding to the cross-section image data. The calculation circuitry calculates collection position information in the volume data based on a running direction of a blood vessel contained in the volume data, the collection position information corresponding to a position from which blood flow velocity information is collected.
    Type: Application
    Filed: December 11, 2015
    Publication date: April 7, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Go TANAKA, Kazuya AKAKI, Eiji GOTO, Koichiro KURITA, Yu IGARASHI
  • Patent number: 9259207
    Abstract: In quantitative analysis using blood flow velocity measurement and the like, whether to select the forward direction or reverse direction is determined in accordance with the positional relationship between a baseline for controlling the display scale of a Doppler waveform and a reference line which can be arbitrarily set by an operator. The determination is executed at one of the stages of selecting a tracing direction by an automatic tracing process, selecting an approximate Doppler waveform as an analysis target, and selecting an analysis result as a display target.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: February 16, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventor: Kazuya Akaki
  • Publication number: 20150112196
    Abstract: According to an embodiment, a transmitter transmits a reference signal. A position sensor obtains position information in a three-dimensional space by receiving the reference signal. A controlling unit associates three-dimensional image data generated by a medical image diagnosis apparatus with the three-dimensional space, on the basis of a registration between an arbitrary cross-sectional plane in the three-dimensional image data and a cross-sectional plane scanned by an ultrasound probe. A detecting unit detects if the position of the transmitter has changed within the associated three-dimensional space, on the basis of the position information obtained by the position sensor. A correcting unit corrects a misregistration between a cross-sectional plane in the three-dimensional image data and a cross-sectional plane scanned by the ultrasound probe, on the basis of a change amount of the position of the transmitter.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Go TANAKA, Kazuya AKAKI, Osamu NAKAJIMA, Masaru OGASAWARA, Shogo FUKUDA
  • Patent number: 9005128
    Abstract: An imaging part acquires a plurality of ultrasound image data by sequentially imaging the subject with ultrasound waves. A display controller causes a display to display, side by side, a plurality of ultrasound images based on the plurality of ultrasound image data acquired by the imaging part. Moreover, the display controller causes the display to display measurement markers for obtaining quantitative information of tissues shown in the ultrasound images in a state superimposed in relatively the same positions on the plurality of ultrasound images.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: April 14, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tomohisa Imamura, Kazuya Akaki, Atsushi Sumi, Akihiro Kakee, Takuya Sasaki
  • Publication number: 20150038846
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes an image obtaining unit, a contour position obtaining unit, a volume information calculating unit, and a controlling unit. The image obtaining unit obtains a plurality of groups of two-dimensional ultrasound image data each of which is generated by performing ultrasound scans, the ultrasound scans being performed on each of a plurality of predetermined cross-sectional planes, and performed for predetermined time. The contour position obtaining unit obtains, by performing a tracking process over the predetermined time period, time-series data of contour positions, the contour positions being either one of, or both of, a cavity interior and a cavity exterior of a predetermined site. The volume information calculating unit calculates, on a basis of a plurality of the time-series data of contour positions, volume information of the predetermined site. The controlling unit exercises control so as to output the volume information.
    Type: Application
    Filed: September 26, 2014
    Publication date: February 5, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasuhiko ABE, Shinichi HASHIMOTO, Kazuya AKAKI
  • Patent number: 8945012
    Abstract: A region-of-interest setting unit sets a region of interest to be included in an ultrasound image. A first movement-amount calculating unit sequentially calculates a movement amount of the set region of interest between reception data along the time sequence as a first movement amount. A transmitting-receiving delay-amount computing unit computes a delay amount for sequentially shifting a scan region of an ultrasonic beam based on the sequentially calculated first movement amount. A computation/control circuit performs control so as to generate a high voltage pulse based on the computed delay amount. A second movement-amount calculating unit sequentially calculates a movement amount of the region of interest between image data along the time sequence as a second movement amount. A display-position correcting unit performs a correction such that the region of interest included in the image data is to be displayed at the same display position, based on the second movement amount.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 3, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yoichi Ogasawara, Yoshihiro Oomori, Kazuya Akaki, Osamu Nakajima
  • Publication number: 20140343428
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes a parameter setting unit, a Fly Thru image generating unit, and a controlling unit. The parameter setting unit sets a value of an image quality adjusting parameter used for generating a PVR image obtained by projecting the inside of a lumen from a predetermined viewpoint, on the basis of information about the lumen rendered in an MPR image generated by using volume data. The Fly Thru image generating unit generates the PVR image by using the value of the image quality adjusting parameter that was set. The controlling unit then causes a monitor to display the PVR image.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Go TANAKA, Kazuya AKAKI, Yoshihiro OOMORI, Satoshi MATSUNAGA, Tetsuya HIGASHI
  • Patent number: 8888704
    Abstract: An imaging part acquires a plurality of ultrasound image data by sequentially imaging the subject with ultrasound waves. A display controller causes a display to display, side by side, a plurality of ultrasound images based on the plurality of ultrasound image data acquired by the imaging part. Moreover, the display controller causes the display to display measurement markers for obtaining quantitative information of tissues shown in the ultrasound images in a state superimposed in relatively the same positions on the plurality of ultrasound images.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 18, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tomohisa Imamura, Kazuya Akaki, Atsushi Sumi, Akihiro Kakee, Takuya Sasaki
  • Publication number: 20140108053
    Abstract: A medical image processing apparatus that acquires a medical image and additional information associated with the medical image. The medical image processing apparatus reduces a display size of the medical image using a first size-reduction rate, and reduces a display size of the additional information using a second size-reduction rate. The medical image processes apparatus then combines the size-reduced medical image and the size-reduced additional information into a thumbnail composite image, and displays the thumbnail composite image.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kazuya AKAKI, Masaru OGASAWARA, Takayuki GUNJI, Satoshi MATSUNAGA, Yutaka KOBAYASHI
  • Publication number: 20130245447
    Abstract: An imaging part acquires a plurality of ultrasound image data by sequentially imaging the subject with ultrasound waves. A display controller causes a display to display, side by side, a plurality of ultrasound images based on the plurality of ultrasound image data acquired by the imaging part. Moreover, the display controller causes the display to display measurement markers for obtaining quantitative information of tissues shown in the ultrasound images in a state superimposed in relatively the same positions on the plurality of ultrasound images.
    Type: Application
    Filed: May 8, 2013
    Publication date: September 19, 2013
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Tomohisa IMAMURA, Kazuya AKAKI, Atsushi SUMI, Akihiro KAKEE, Takuya SASAKI
  • Patent number: 8523776
    Abstract: Transmitting and receiving ultrasound with repetition frequency that corresponds to velocity range indicating the measurable velocity to and from a diagnostic site that contains moving fluid within a body to be examined. Generating Doppler spectrum image showing velocity of moving fluid based on signals obtained from transmission and reception of ultrasound. Storing modeled value based on model correlating standard blood velocity waveform with an ECG waveform. Calculating measured blood velocity waveform based on spectrum image of a specified patient. Acquiring ECG waveform at timing corresponding to measured blood velocity waveform. Estimating blood velocity waveform excluding effects of valve signals of patient based on measured blood velocity waveform, ECG waveform, and modeled value.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: September 3, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tatsuro Baba, Muneki Kataguchi, Kazuya Akaki, Shuichi Kawasaki
  • Patent number: 8409094
    Abstract: An ultrasound diagnostic apparatus including a transmitting and receiving unit configured to transmit and receive ultrasound waves and from a plurality of planes of a subject by an ultrasonic probe, and an image signal generation unit configured to execute image processing on the basis of received signal from the transmitting and receiving unit and to generate image signals for ultrasound images indicating each of the planes, wherein the transmitting and receiving unit or the image signal generation unit as configured to execute transmitting and receiving or image processing with respect to one of the planes in a condition that is different with respect to another of the planes.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: April 2, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Osamu Nakajima, Jiro Higuchi, Kazuya Akaki, Takayuki Gunji, Koichiro Kurita
  • Patent number: 8303507
    Abstract: A Doppler signal detecting unit 42 and spectrum calculating unit 44 measure a Doppler spectrum from a reception signal obtained by ultrasonic wave transmission/reception with respect to a diagnosis region of an object to be examined. A local maximum/minimum detecting unit 62 detects a plurality of local maximum/minimum pairs with respect to a trace waveform generated by a trace waveform generating unit 61 on the basis of the Doppler spectrum. A feature amount selecting unit 64 selects a desired waveform from a plurality of local maximum/minimum pairs in a predetermined cardiac cycle set by a cardiac cycle setting unit 63 by using heartbeat information from a living body measuring unit 9 on the basis of a preset selection criterion. A diagnostic parameter is measured on the basis of the position information or amplitude information of the selected waveform.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: November 6, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tatsuro Baba, Hiroyuki Tsujino, Kazuya Akaki
  • Publication number: 20120203111
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes a detection unit configured to detect a distribution of velocity information at each position in a predetermined area in an object over a predetermined interval by scanning the predetermined area with an ultrasonic wave, a calculation unit configured to calculate at least one feature amount based on at least one of a maximum flow velocity value, a minimum flow velocity value, and a mean flow velocity value at the each position in the predetermined interval by using velocity information at each position over the predetermined interval, and a display unit configured to display the feature amount in a predetermined form.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Inventors: Satoshi MATSUNAGA, Kazuya Akaki, Masaru Ogasawara, Yutaka Kobayashi, Takayuki Gunji
  • Patent number: 8046707
    Abstract: A medical imaging apparatus for generating medical information includes an input unit, a processor, and a display. The input unit is operated by a user and is configured to input an instruction. The processor is configured to process a first part of display information relating to the medical information based on the instruction so that the first part is displayed in a differentiable manner from others of the display information. The display is configured to display the processed first part and the others of the display information.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: October 25, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corp.
    Inventor: Kazuya Akaki