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

IPC: G01S15/89 ,  A61B8/08

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.

公开(公告)号：US20210161511A1

公开(公告)日：2021-06-03

申请号：US17105772

申请日：2020-11-27

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki YOSHIARA ,  Tomohisa IMAMURA ,  Akihiro KAKEE ,  Koichiro KURITA

IPC: A61B8/08 ,  A61B8/00

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes an evaluating circuit, a frequency setting circuit, and a drive circuit. The evaluating circuit is configured to analyze a received signal of a predetermined depth based on received signals of ultrasonic wave to evaluate a degree of beam penetration to a deep portion. The frequency setting circuit is configured to set a transmission frequency based on a result evaluated by the evaluating circuit. The drive circuit is configured to generate a drive pulse based on the set transmission frequency.

公开(公告)号：US20230329677A1

公开(公告)日：2023-10-19

申请号：US18298413

申请日：2023-04-11

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Yasunori HONJO ,  Tomohisa IMAMURA

IPC: A61B8/08 ,  A61B8/00

CPC classification number: A61B8/485 ,  A61B8/5276 ,  A61B8/543

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates, based on first ultrasound information relating to a displacement over time of an organ that makes a periodic movement, a function relating to a clutter component originating from the organ, and calculates, based on the function and second ultrasound information relating to a displacement over time of the organ after pressure is applied to the organ, a shear wave that propagates through the organ by the applied pressure.

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

IPC: A61B8/08 ,  A61B8/06 ,  G06T11/00 ,  G01S7/52

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.

公开(公告)号：US20210369247A1

公开(公告)日：2021-12-02

申请号：US17333410

申请日：2021-05-28

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Yu IGARASHI ,  Masaki WATANABE ,  Yasunori HONJO ,  Tomohisa IMAMURA ,  Tetsuya KAWAGISHI

IPC: A61B8/00 ,  A61B8/08

Abstract: A medical image diagnosis apparatus according to an embodiment includes processing circuitry configured to acquire signals from a subject over time, calculate a first similarity representing a similarity of the signals between frames with respect to each of a plurality of frames and a plurality of positions and calculate a second similarity representing a similarity of change of the first similarity over time between the positions, and output the second similarity.

公开(公告)号：US20200268354A1

公开(公告)日：2020-08-27

申请号：US16798510

申请日：2020-02-24

Applicant: Canon Medical Systems Corporation

Inventor： Minori IZUMI ,  Tomohisa IMAMURA

IPC: A61B8/08 ,  A61B8/00

Abstract: According to one embodiment, an apparatus includes an acquisition unit and a generation unit. The acquisition unit specifies the cycle of pulses in a part that performs periodic motion based on blood flow information in the part. The generation unit rearranges a plurality of two-dimensional images of the part based on the cycle to generate a three-dimensional image.

公开(公告)号：US20200029937A1

公开(公告)日：2020-01-30

申请号：US16506727

申请日：2019-07-09

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Ryota OSUMI ,  Muneki KATAGUCHI ,  Tomohisa IMAMURA

IPC: A61B8/08 ,  A61B8/00 ,  A61B8/06

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to generate an ultrasound image on the basis of a result of an ultrasound scan performed on a region including a part of a subject. The processing circuitry is configured to obtain a schematic image schematically indicating the part of the subject. The processing circuitry is configured to cause a display to display the schematic image and either the ultrasound image or an image based on the ultrasound image, in such a manner that the orientation of the subject included in either the ultrasound image or the image based on the ultrasound image and the orientation of the subject indicated in the schematic image are close to each other, on the basis of an analysis result from an analysis performed on either the ultrasound image or the image based on the ultrasound image.

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

IPC: A61B8/08 ,  G01S7/52 ,  G01S15/89

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.

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.

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.