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公开(公告)号：US20250114074A1
公开(公告)日：2025-04-10
申请号：US18900093
申请日：2024-09-27
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Masashi USUMURA , Hiroki TAKAHASHI
Abstract: An ultrasound diagnostic apparatus according to an embodiment includes a processing circuit. The processing circuit is configured to acquire first signal data of multiple frames through scan on a subject, extract second signal data of multiple frames by extracting a signal by nonlinear processing from the first signal data, identify an inappropriate signal point or an inappropriate frame from the second signal data, and generate third signal data based on an identification result of the inappropriate signal point or the inappropriate frame, and on the second signal data.
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公开(公告)号：US20250072864A1
公开(公告)日：2025-03-06
申请号：US18815934
申请日：2024-08-27
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes transmitter/receiver circuitry and processing circuitry. The transmitter/receiver circuitry is configured to transmit an ultrasound wave to an examined subject by using a first transmission condition and to receive an echo from the examined subject. The processing circuitry is configured: to generate, on the basis of the first transmission condition, a second transmission condition corresponding to transmitting an ultrasound wave obtained by adding a harmonic component to the ultrasound wave; to obtain a transmission wave field by forward propagating the ultrasound wave transmitted on the basis of the second transmission condition; to obtain a reception wave field by backward propagating a signal based on the echo; and to generate a harmonic echo component by performing a correlation analysis between the transmission wave field and the reception wave field.
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公开(公告)号：US20240407765A1
公开(公告)日：2024-12-12
申请号：US18809967
申请日：2024-08-20
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI , Takeshi FUKASAWA , Akihiro KAKEE
Abstract: According to one embodiment, an ultrasound diagnosis apparatus includes processing circuitry. The processing circuitry acquires a change in a display parameter related to image display in a first bloodstream imaging mode of displaying a bloodstream signal acquired by an ultrasonic probe during execution of the first bloodstream imaging mode, and determines whether or not the display parameter after the change is more suitable for a second bloodstream imaging mode than for the first bloodstream imaging mode, an imaging method of the second bloodstream imaging mode differing from an imaging method of the first bloodstream imaging mode.
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公开(公告)号：US20220079564A1
公开(公告)日：2022-03-17
申请号：US17447588
申请日：2021-09-14
Applicant: Canon Medical Systems Corporation
Inventor： Hiroki TAKAHASHI
Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes processing circuitry. The processing circuitry acquires a parameter relating to a predetermined imaging mode, the parameter including at least information on an instruction for executing transmit aperture synthesis, and determines a scanning condition for executing the transmit aperture synthesis together with step-alternating scan based on the parameter.
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公开(公告)号：US20250143675A1
公开(公告)日：2025-05-08
申请号：US18900153
申请日：2024-09-27
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Masashi USUMURA , Hiroki TAKAHASHI
Abstract: A medical information processing device according to an embodiment includes a processing circuit. The processing circuit acquires first ultrasonic data obtained based on a result of an ultrasonic scan of a subject, continuously extracts signal components representing an object from the first ultrasonic data, and outputs second ultrasonic data, based on the continuously extracted signal components representing the object.
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Patent Agency Ranking
公开(公告)号：US20240398386A1
公开(公告)日：2024-12-05
申请号：US18329070
申请日：2023-06-05
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Ryosuke IWASAKI , Hiroki TAKAHASHI , Tomohisa IMAMURA , Ting XIA , Liang CAI , Jian ZHOU
Abstract: An ultrasound diagnosis apparatus of an embodiment includes storage circuitry and processing circuitry. The storage circuitry stores therein a trained model trained using a first ultrasound signal containing a saturated signal as input data and a second ultrasound signal in which effect of saturation is reduced from the first ultrasound signal, as target data. The processing circuitry inputs a third ultrasound signal containing a saturated signal to the trained model and acquires a fourth ultrasound signal that is output from the trained model and in which effect of saturation is reduced from the third ultrasound signal, to generate the fourth ultrasound signal.
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公开(公告)号：US20240378496A1
公开(公告)日：2024-11-14
申请号：US18361238
申请日：2023-07-28
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Ting XIA , Jian ZHOU , Liang CAI , Zhou YU , Tomohisa IMAMURA , Ryosuke IWASAKI , Hiroki TAKAHASHI
IPC: G06N20/00
Abstract: A method for harmonic imaging is provided and includes inputting first training ultrasound data, including a fundamental component and a harmonic component, to each of a plurality of teacher models, and training each teacher model with the first training ultrasound as teacher input data and second training ultrasound data, including the harmonic component, as teacher target data; acquiring, for each teacher, corresponding first estimated data output from the teacher model, in response to input of first ultrasound data to the teacher model; selecting a first particular teacher model by evaluating the corresponding first estimated data output from each of the trained teacher models; and training a student model with the first ultrasound data as student input data and the corresponding first estimated data of the selected first particular teacher model as student target data.
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公开(公告)号：US20240285258A1
公开(公告)日：2024-08-29
申请号：US18589189
申请日：2024-02-27
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroki TAKAHASHI
CPC classification number: A61B8/488 , A61B8/4455 , A61B8/5207 , A61B17/3403 , A61B2017/3413
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes transmitter and receiver circuitry and Doppler processing circuitry. The transmitter and receiver circuitry is configured to transmit ultrasound and receive an echo signal corresponding to the ultrasound. The Doppler processing circuitry is configured to perform principal component analysis of a first signal data string obtained from the echo signal, and is configured to extract a second signal data string from the first signal data string by reducing a predetermined Doppler frequency component, on the basis of at least one of an eigenvalue and an eigenvector obtained by the principal component analysis.
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公开(公告)号：US20240260942A1
公开(公告)日：2024-08-08
申请号：US18165433
申请日：2023-02-07
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Ryosuke IWASAKI , Hiroki TAKAHASHI , Tomohisa IMAMURA , Ting XIA , Liang CAI , Jian ZHOU , Zhou YU
IPC: A61B8/08
CPC classification number: A61B8/5207 , A61B8/488 , G01S7/5206
Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. This processing circuitry collects a first ultrasound signal including one or more harmonic components. By executing weighed addition processing where a coefficient distribution is applied to the first ultrasound signal for different directions of two or more dimensions, the processing circuitry generates a second ultrasound signal including components of each order at a ratio different, at a specific frequency, from a ratio among the frequency components included in the first ultrasound signal.
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公开(公告)号：US20210137501A1
公开(公告)日：2021-05-13
申请号：US17061719
申请日：2020-10-02
Applicant: Canon Medical Systems Corporation
Inventor： Hiroki TAKAHASHI , Tomohisa IMAMURA
Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes processing circuitry. The processing circuitry forms a first transmission beam in a plurality of directions belonging to a first group, forms at least one first reception beam, forms a second transmission beam in a plurality of directions belonging to a second group, after an elapse of a time from performing a scan for the first group, forms at least one second reception beam, applies a wall filter to reception signals obtained by the first and the second reception beams, calculates bloodstream information based on the filtered reception signals, and generates image data based on the calculated bloodstream information.
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