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).
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Publication number: 20230200785Abstract: 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: ApplicationFiled: March 6, 2023Publication date: June 29, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yasuhiko ABE, Shinichi HASHIMOTO, Kazuya AKAKI
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Patent number: 10932753Abstract: 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: GrantFiled: December 24, 2014Date of Patent: March 2, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Go Tanaka, Kazuya Akaki, Osamu Nakajima, Masaru Ogasawara, Shogo Fukuda
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Publication number: 20190046153Abstract: 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: ApplicationFiled: October 17, 2018Publication date: February 14, 2019Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Go TANAKA, Kazuya AKAKI, Eiji GOTO, Koichiro KURITA, Yu IGARASHI
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Patent number: 10136877Abstract: 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: GrantFiled: July 30, 2014Date of Patent: November 27, 2018Assignee: Toshiba Medical Systems CorporationInventors: Go Tanaka, Kazuya Akaki, Yoshihiro Oomori, Satoshi Matsunaga, Tetsuya Higashi
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Publication number: 20160367221Abstract: 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: ApplicationFiled: June 15, 2016Publication date: December 22, 2016Applicant: Toshiba Medical Systems CorporationInventors: Yu IGARASHI, Kazuya AKAKI, Shunsuke SATOH, Go TANAKA, ltsuki KUGA, Takayuki GUNJI, Masaki WATANABE
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Publication number: 20160095573Abstract: 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: ApplicationFiled: December 11, 2015Publication date: April 7, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Go TANAKA, Kazuya AKAKI, Eiji GOTO, Koichiro KURITA, Yu IGARASHI
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Patent number: 9259207Abstract: 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: GrantFiled: September 6, 2005Date of Patent: February 16, 2016Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventor: Kazuya Akaki
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Publication number: 20150112196Abstract: 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: ApplicationFiled: December 24, 2014Publication date: April 23, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Go TANAKA, Kazuya AKAKI, Osamu NAKAJIMA, Masaru OGASAWARA, Shogo FUKUDA
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Patent number: 9005128Abstract: 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: GrantFiled: May 8, 2013Date of Patent: April 14, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomohisa Imamura, Kazuya Akaki, Atsushi Sumi, Akihiro Kakee, Takuya Sasaki
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Publication number: 20150038846Abstract: 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: ApplicationFiled: September 26, 2014Publication date: February 5, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Yasuhiko ABE, Shinichi HASHIMOTO, Kazuya AKAKI
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Patent number: 8945012Abstract: 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: GrantFiled: September 14, 2009Date of Patent: February 3, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Yoichi Ogasawara, Yoshihiro Oomori, Kazuya Akaki, Osamu Nakajima
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Publication number: 20140343428Abstract: 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: ApplicationFiled: July 30, 2014Publication date: November 20, 2014Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Go TANAKA, Kazuya AKAKI, Yoshihiro OOMORI, Satoshi MATSUNAGA, Tetsuya HIGASHI
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Patent number: 8888704Abstract: 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: GrantFiled: June 3, 2009Date of Patent: November 18, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomohisa Imamura, Kazuya Akaki, Atsushi Sumi, Akihiro Kakee, Takuya Sasaki
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Publication number: 20140108053Abstract: 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: ApplicationFiled: December 18, 2013Publication date: April 17, 2014Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Kazuya AKAKI, Masaru OGASAWARA, Takayuki GUNJI, Satoshi MATSUNAGA, Yutaka KOBAYASHI
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Publication number: 20130245447Abstract: 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: ApplicationFiled: May 8, 2013Publication date: September 19, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Tomohisa IMAMURA, Kazuya AKAKI, Atsushi SUMI, Akihiro KAKEE, Takuya SASAKI
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Patent number: 8523776Abstract: 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: GrantFiled: June 17, 2008Date of Patent: September 3, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tatsuro Baba, Muneki Kataguchi, Kazuya Akaki, Shuichi Kawasaki
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Patent number: 8409094Abstract: 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: GrantFiled: March 14, 2007Date of Patent: April 2, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Osamu Nakajima, Jiro Higuchi, Kazuya Akaki, Takayuki Gunji, Koichiro Kurita
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Patent number: 8303507Abstract: 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: GrantFiled: September 7, 2005Date of Patent: November 6, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tatsuro Baba, Hiroyuki Tsujino, Kazuya Akaki
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Publication number: 20120203111Abstract: 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: ApplicationFiled: February 3, 2012Publication date: August 9, 2012Inventors: Satoshi MATSUNAGA, Kazuya Akaki, Masaru Ogasawara, Yutaka Kobayashi, Takayuki Gunji
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Patent number: 8046707Abstract: 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: GrantFiled: December 29, 2003Date of Patent: October 25, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corp.Inventor: Kazuya Akaki