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11.发明公开公开(公告)号：US20240061109A1
公开(公告)日：2024-02-22
申请号：US18451421
申请日：2023-08-17
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Ryosuke IWASAKI , Hiroki TAKAHASHI , Tomohisa IMAMURA
CPC classification number: G01S15/8977 , A61B8/5207
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a saturation region of a signal based on an ultrasound wave received by an ultrasound probe; and to correct a first signal including an odd-numbered order harmonic component of the saturation region, on a basis of a second signal including an even-numbered order harmonic component of the saturation region.
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公开(公告)号：US20230225710A1
公开(公告)日：2023-07-20
申请号：US18155217
申请日：2023-01-17
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI
CPC classification number: A61B8/5207 , A61B8/4477
Abstract: An ultrasonic diagnostic apparatus according to an embodiment has transmitting and receiving circuitry that transmits and receives ultrasonic waves, and processing circuitry. The transmitting and receiving circuitry is configured to perform first beamforming processing on reflected wave signals output from a plurality of transducer elements that receive reflected waves and perform second beamforming processing different from the first beamforming processing on the reflected wave signals. The processing circuitry is configured to calculate an evaluation value of spatial correlation of the reflected wave signals and perform third beamforming processing based on a first processing result that is a processing result of the first beamforming processing, a second processing result that is a processing result of the second beamforming processing, and the evaluation value.
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公开(公告)号：US20230000470A1
公开(公告)日：2023-01-05
申请号：US17809391
申请日：2022-06-28
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI
Abstract: An ultrasound diagnosis apparatus according to an embodiment is configured to implement an ultrasound beamforming method by which, among a plurality of reception signals output from a plurality of elements, reception signals from mutually-different elements are multiplied by each other, so that signals obtained as results of the multiplications are added together. The ultrasound diagnosis apparatus according to the embodiment includes processing circuitry. The processing circuitry is configured to calculate a weight coefficient on the basis of a correlation between the multiplied reception signals. The processing circuitry is configured to apply the weight coefficient to the signals obtained as the results of the multiplications.
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14.发明申请公开(公告)号：US20190209133A1
公开(公告)日：2019-07-11
申请号：US16243256
申请日：2019-01-09
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI , Takeshi Sato
IPC: A61B8/00
CPC classification number: A61B8/4488
Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry configured to execute transmit aperture synthesis to conduct coherent summation on multiple received signals that are at different transmit apertures and in an identical scan line, evaluate a degree of consistency between phases of the received signals to calculate an evaluation value at each observation point, and correct a received signal having undergone the transmit aperture synthesis based on the evaluation value.
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15.发明申请公开(公告)号：US20180214116A1
公开(公告)日：2018-08-02
申请号：US15883813
申请日：2018-01-30
Applicant: Canon Medical Systems Corporation
Inventor： Takeshi SATO , Hiroki TAKAHASHI
CPC classification number: A61B8/06 , A61B8/4488 , A61B8/463 , A61B8/483 , A61B8/488 , A61B8/5207 , A61B8/5223 , A61B8/5269 , A61B8/54 , G06T7/246 , G06T2207/10132 , G06T2207/20056 , G06T2207/30048 , G06T2207/30104
Abstract: An ultrasound diagnosis apparatus includes: transmission and reception circuitry that generates reception signals corresponding to channels, from reflected waves arranged to be received at mutually the same time by transducer elements that transmitted an ultrasound wave, by controlling transducer elements included in an ultrasound probe; extracting circuitry that extracts, prior to a beam forming process, first signals corresponding to the channels from the reception signals corresponding to the channels while suppressing signals originating from a tissue and further extracts a second signal by performing the beam forming process after suppressing, of the extracted first signals corresponding to the channels, a component in a predetermined direction; calculating circuitry that calculates blood flow information from the second signal; and controlling circuitry that generates a blood flow image from the blood flow information and causes display to display the generated blood flow image.
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Patent Agency Ranking
公开(公告)号：US20250143674A1
公开(公告)日：2025-05-08
申请号：US18900187
申请日：2024-09-27
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Masashi USUMURA , Hiroki TAKAHASHI
Abstract: An ultrasonic diagnostic apparatus of an embodiment includes an ultrasonic probe and processing circuitry. The ultrasonic probe transmits an ultrasonic wave to a subject, and receives the ultrasonic wave reflected by the subject. The processing circuitry acquires first ultrasonic data of the subject, based on the ultrasonic wave received by the ultrasonic probe. The processing circuitry extracts identification information that identifies a position of a local peak for each predetermined region of a frame represented by the first ultrasonic data. The processing circuitry outputs second ultrasonic data, based on the extracted identification information and ultrasonic data representing an object to be processed.
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公开(公告)号：US20250127480A1
公开(公告)日：2025-04-24
申请号：US18916827
申请日：2024-10-16
Applicant: CANON MEDICAL SYSTEMS CORPORATION , Canon Kabushiki Kaisha
Inventor： Takeshi SATO , Hiroki TAKAHASHI , Shoya SASAKI , Naoya IIZUKA
Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a processing circuitry. The processing circuitry reduces the clutter component, which results from the tissues, from a data row of the plurality of frames and estimates first-type blood flow information. Moreover, the processing circuit generates, from the first-type blood flow information, second-type blood flow information representing images of scalar values of blood flow signals, detects the local maximums of the second-type blood flow information, integrates the local maximums and generates a scalar value integration image, calculates an autocorrelation function in the frame direction at positions of the local maximum in the first-type blood flow information, integrates the autocorrelation functions and generates an autocorrelation function integration image, generates third-type blood flow information, in which the blood flow is color-coded, from the scalar value integration image and the autocorrelation function integration image, and displays the third-type blood flow information on a display.
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公开(公告)号：US20230233188A1
公开(公告)日：2023-07-27
申请号：US18158674
申请日：2023-01-24
Applicant: Canon Medical Systems Corporation
Inventor： Hiroki TAKAHASHI , Gen NAGANO
IPC: A61B8/08
CPC classification number: A61B8/5207
Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry extracts an odd harmonic component from a reflected wave signal received by each element of an ultrasonic probe. The processing circuitry determines whether the reflected wave signal is saturated or not using the extracted odd harmonic component. The processing circuitry multiplies the reflected wave signal of an element for which the reflected wave signal is determined to be saturated by a weight coefficient. The processing circuitry generates reflected wave data by performing phasing addition on the reflected wave signal.
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19.发明申请公开(公告)号：US20220313221A1
公开(公告)日：2022-10-06
申请号：US17711250
申请日：2022-04-01
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Ryosuke IWASAKI , Hiroki TAKAHASHI , Tomohisa IMAMURA
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to receive an input of first ultrasound data and to output second ultrasound data. The processing circuitry is configured to reconstruct third ultrasound data on the basis of amplitude information in the second ultrasound data and phase information in the first ultrasound data. The processing circuitry is configured to perform a process that uses amplitude information and phase information in the third ultrasound data.
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20.发明申请公开(公告)号：US20250009343A1
公开(公告)日：2025-01-09
申请号：US18760080
申请日：2024-07-01
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI , Tetsuya YOSHIDA
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry includes: transmitter/receiver circuitry configured to transmit an ultrasound wave to the inside of an examined subject and to receive an echo signal emitted in response to the ultrasound wave; and processing circuitry configured to extract, with respect to each spatial point, information that is related to motion velocity of a target inside the examined subject and included in a signal data sequence obtained from the echo signal, to calculate periodicity information of a movement of the examined subject on the basis of the information, and to generate a spatial distribution of the periodicity information.
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