公开(公告)号：US20210350536A1

公开(公告)日：2021-11-11

申请号：US17382604

申请日：2021-07-22

Applicant: OLYMPUS CORPORATION

Inventor： Shigenori KOZAI

IPC: G06T7/00 ,  A61B8/00

Abstract: An ultrasonic diagnostic device includes a processor including hardware, the processor being configured to: analyze a first examination performed on a subject using first ultrasound image data of an ultrasound image of the subject to be diagnosed; calculate a rate of accuracy of diagnosis in a case where a second examination is performed on the subject based on an analysis result of the first examination performed on the subject, analysis results of the first examination performed on a plurality of sample subjects, and analysis results of the second examination performed on the plurality of sample subjects; and control a display device to display the rate of accuracy of diagnosis.

公开(公告)号：US20170143300A1

公开(公告)日：2017-05-25

申请号：US15422504

申请日：2017-02-02

Applicant: OLYMPUS CORPORATION

Inventor： Shigenori KOZAI

IPC: A61B8/14 ,  A61B5/00 ,  A61B8/08

CPC classification number: A61B8/14 ,  A61B5/7257 ,  A61B8/12 ,  A61B8/463 ,  A61B8/5207 ,  A61B8/5223 ,  A61B8/5269 ,  G01S7/52033

Abstract: Provided is an ultrasound observation apparatus for generating an ultrasound image based on an ultrasound signal acquired by an ultrasound probe having an ultrasound transducer. The apparatus includes: an analysis unit that performs FFT on a sample data group having pieces of sample data in RF data generated based on the ultrasound signal, to calculate frequency spectra; a correction unit that generates, based on the frequency spectra, analysis data indicating a relationship between a distance from the ultrasound transducer and an intensity of each of the frequency spectra for each frequency component, and corrects the analysis data based on a correction amount set for each distance, the correction amount causing an intensity of reference data generated from a reference ultrasound signal to be constant regardless of the distance; and a calculation unit that calculates a frequency feature based on a frequency spectrum generated in accordance with the corrected analysis data.

公开(公告)号：US20220409168A1

公开(公告)日：2022-12-29

申请号：US17898818

申请日：2022-08-30

Applicant: OLYMPUS CORPORATION

Inventor： Tomonao KAWASHIMA ,  Shigenori KOZAI ,  Hiromasa NOGUCHI

IPC: A61B8/08 ,  A61B8/00

Abstract: An ultrasound diagnostic apparatus includes a drive circuit configured to transmit a drive signal to an ultrasound transducer, a receiving circuit configured to receive an echo signal from the ultrasound transducer, and a processor. The processor obtains, based on the echo signal or a user input, target information containing at least one of a distance from the ultrasound transducer to a target region containing liquid or a size of the target region, and sets, based on the target information, a drive condition under which an acoustic streaming generating ultrasound transmitted by the ultrasound transducer generates acoustic streaming in the liquid in the target region.

公开(公告)号：US20200315581A1

公开(公告)日：2020-10-08

申请号：US16905720

申请日：2020-06-18

Applicant: OLYMPUS CORPORATION

Inventor： Shigenori KOZAI

IPC: A61B8/00 ,  A61B8/14 ,  A61B8/08

Abstract: Provided is an ultrasound imaging system configured to generate data of an ultrasound image based on an echo signal received by each of a plurality of elements included in an ultrasound transducer that transmits and receives ultrasound. The ultrasound imaging system includes: a determining circuit configured to determine, using a signal corresponding to the echo signal received by each of the plurality of elements, whether each of the plurality of elements has a sensitivity decrease; a region specifying circuit configured to specify a region where sensitivity decreases in the ultrasound image, based on a contribution degree indicating a ratio of transmission intensity contributing to an ultrasound beam by an element that has been determined as having the sensitivity decrease by the determining circuit; and a sensitivity display circuit configured to generate data for displaying the region specified by the region specifying circuit.

公开(公告)号：US20190336106A1

公开(公告)日：2019-11-07

申请号：US16516343

申请日：2019-07-19

Applicant: OLYMPUS CORPORATION

Inventor： Shigenori KOZAI

IPC: A61B8/00 ,  A61B8/08

Abstract: An ultrasound observation device includes a processor including hardware, wherein the processor is configured to: generate ultrasound image data; set, in a region of interest, a plurality of small regions by dividing the region of interest in accordance with a preset condition; generate a histogram of each of the small regions; calculate a determination value for each of the small regions; determine whether the physical quantity in each of the small regions is uniform; change a determination target small region in accordance with a preset condition when the physical quantity in the determination target small region among the small regions is determined to be not uniform; set the determination target small region as an attenuation rate calculation target region when the physical quantity in the determination target small region is determined to be uniform; and set an attenuation rate of the attenuation rate calculation target region.

公开(公告)号：US20180271478A1

公开(公告)日：2018-09-27

申请号：US15992692

申请日：2018-05-30

Applicant: OLYMPUS CORPORATION

Inventor： Shigenori KOZAI

IPC: A61B8/12 ,  A61B8/14 ,  G06T7/00 ,  G01S7/52 ,  A61B5/00 ,  A61B8/08

CPC classification number: A61B8/12 ,  A61B5/0062 ,  A61B8/14 ,  A61B8/5223 ,  G01S7/52023 ,  G06T7/0012

Abstract: An ultrasound observation device is configured to acquire an ultrasound signal obtained by converting ultrasound received by an ultrasound transducer to an electric signal, the ultrasound transducer transmitting the ultrasound to an observation target and receiving ultrasound reflected from the observation target. The ultrasound observation device includes: a processor configured to perform predetermined computation on the ultrasonic signal. The processor is configured to: analyze a frequency of a signal generated based on the ultrasound signal to calculate a plurality of frequency spectra; compare a physical quantity based on the ultrasound reflected from the observation target with a threshold set according to the physical quantity; and calculate a frequency feature based on a frequency spectrum calculated by the analyzing and a comparison result obtained by the comparing.