ULTRASOUND DIAGNOSTIC DEVICE AND ULTRASOUND SIGNAL PROCESSING METHOD

    公开(公告)号:US20220008042A1

    公开(公告)日:2022-01-13

    申请号:US17366872

    申请日:2021-07-02

    Abstract: An ultrasound diagnostic device including a transmitter, a first image processor, a second image processor, and an image synthesizer. The transmitter alternates between first transmission events that include transmission of first detection waves and second transmission events that include transmission of second detection waves. The first image processor generates frames of first images based on reception signals corresponding to a plurality of the first transmission events. The second image processor generates frames of second images based on reception signals corresponding to the second transmission events. The image synthesizer superimposes the second images on the first images to generate synthesized images. Frame rate of the second images is higher than that of the first images. The transmitter performs a third transmission event prior to the second transmission events that includes transmission of a plurality of the first detection waves to acquire reception signals corresponding to one frame of the first images.

    ULTRASOUND DIAGNOSTIC APPARATUS, ULTRASOUND IMAGE GENERATION METHOD AND STORAGE MEDIUM

    公开(公告)号:US20190125310A1

    公开(公告)日:2019-05-02

    申请号:US16171868

    申请日:2018-10-26

    Inventor: Yoshihiro TAKEDA

    Abstract: An ultrasound diagnostic apparatus includes a transmitter, a receiver and a hardware processor. The transmitter outputs a drive signal for a C-mode image to an ultrasound probe. The receiver obtains a reception signal from the probe. The processor sets at least one mask in a frame of packet data of the reception signal; calculates a covariance matrix from a plurality of packet data included in the mask; calculates an eigenvector for the mask from the covariance matrix; calculates a first filter coefficient for the packet data by using the eigenvector and a gain matrix; performs interpolation on the first filter coefficient to calculate a second filter coefficient for packet data of each position in the frame; filters the packet data of the position by using the second filter coefficient; and generates C-mode image data from the filtered packet data.

    ULTRASOUND DIAGNOSIS APPARATUS
    4.
    发明申请
    ULTRASOUND DIAGNOSIS APPARATUS 审中-公开
    超声诊断装置

    公开(公告)号:US20160199024A1

    公开(公告)日:2016-07-14

    申请号:US14965887

    申请日:2015-12-10

    CPC classification number: A61B8/0841 A61B8/4405 A61B8/4444 A61B8/5215

    Abstract: An ultrasound diagnosis apparatus generating an ultrasound image of inside of a test object based on ultrasound signals reflected and received from the inside of the test object includes: a candidate region extracting unit which extracts a plurality of candidate detection regions in a needle position range corresponding to a position of a puncture needle inserted into the test object; a needle identification range setting unit which determines a needle identification range including the needle position range from the ultrasound image based on the extracted candidate detection regions; a needle position range estimating unit which determines an estimated range of the needle position range in the needle identification range based on a value indicating an aggregation state related to a distribution of the candidate detection regions in the needle identification range; and a needle emphasizing unit which performs a process for emphasizing the estimated range in the ultrasound image.

    Abstract translation: 基于从被测对象的内部反射和接收的超声波信号,生成测试对象内部的超声波图像的超声波诊断装置包括:候补区域提取单元,其在针对位置范围内提取多个候选检测区域, 穿刺针插入被检体内的位置; 针识别范围设定单元,其基于所提取的候选检测区域,从超声波图像确定包括针位置范围的针识别范围; 针位置范围估计单元,其基于指示与针识别范围中的候选检测区域的分布相关的聚集状态的值,确定针识别范围中的针位置范围的估计范围; 以及执行用于强调超声波图像中的估计范围的处理的针增强单元。

    SIGNAL PROCESSING DEVICE, ULTRASOUND DIAGNOSTIC APPARATUS, AND SIGNAL PROCESSING METHOD
    5.
    发明申请
    SIGNAL PROCESSING DEVICE, ULTRASOUND DIAGNOSTIC APPARATUS, AND SIGNAL PROCESSING METHOD 审中-公开
    信号处理装置,超声诊断装置和信号处理方法

    公开(公告)号:US20150316514A1

    公开(公告)日:2015-11-05

    申请号:US14681629

    申请日:2015-04-08

    Inventor: Yoshihiro TAKEDA

    Abstract: A signal processing device which uses a first signal waveform of ultrasound reflected from an object in a first compressed state and a second signal waveform of ultrasound reflected from the object in a second compressed state and calculates an elasticity of the object affected by a change in a compressed state includes: a phase difference calculation unit which calculates a phase difference component in each time between the first signal waveform and the second signal waveform; a correlation calculation unit which calculates an elasticity pertaining to a difference in angular frequencies between the first signal waveform and the second signal waveform and an initial phase difference according to a correlation between the each time and the phase difference component in the each time; and an elasticity calculation unit which calculates the elasticity on the basis of the difference in angular frequencies.

    Abstract translation: 一种信号处理装置,其使用从第一压缩状态的对象反射的超声波的第一信号波形和在第二压缩状态下从对象反射的超声波的第二信号波形,并且计算受到变化影响的对象的弹性 压缩状态包括:相位差计算单元,其计算第一信号波形和第二信号波形之间的每个时间的相位差分量; 相关计算单元,其根据每个时间和每个时间的相位差分量之间的相关性来计算与第一信号波形和第二信号波形之间的角频率的差异以及初始相位差的弹性; 以及弹性计算单元,其基于角频率的差计算弹性。

    ULTRASOUND IMAGE PROCESSING METHOD AND ULTRASOUND DIAGNOSTIC DEVICE USING ULTRASOUND IMAGE PROCESSING METHOD
    9.
    发明申请
    ULTRASOUND IMAGE PROCESSING METHOD AND ULTRASOUND DIAGNOSTIC DEVICE USING ULTRASOUND IMAGE PROCESSING METHOD 审中-公开
    使用超声波图像处理方法的超声图像处理方法和超声诊断装置

    公开(公告)号:US20150320401A1

    公开(公告)日:2015-11-12

    申请号:US14700531

    申请日:2015-04-30

    Abstract: An ultrasound image processing method including: calculating motion amounts of pixel regions in one frame receive signal, based on receive signal units corresponding to identical pixel regions included in at least two frame receive signals; calculating cumulative motion amounts, each corresponding to a target pixel region in the one frame receive signal, by cumulating motion amounts corresponding to pixel regions in the one frame receive signal located substantially along a direction of transmission of the ultrasound beam from a pixel region located at an upstream end of an ultrasound beam to the target pixel region; calculating enhancement amounts for receive signal units corresponding to the pixel regions included in the one frame receive signal, the enhancement amounts being based on the motion amounts and the cumulative motion amounts; and enhancing the receive signal units based on the enhancement amounts.

    Abstract translation: 一种超声波图像处理方法,包括:基于对应于包括在至少两个帧接收信号中的相同像素区域的接收信号单元,计算一帧接收信号中的像素区域的运动量; 通过累积与所述一帧接收信号中的像素区域相对应的运动量来计算每个对应于一帧接收信号中的目标像素区域的累积运动量,所述运动量基本上沿着位于所述超声波束的位置处的像素区域沿着所述超声波束的传输方向 超声波束的上游端到目标像素区域; 计算对应于包括在一帧接收信号中的像素区域的接收信号单元的增强量,增强量基于运动量和累积运动量; 以及基于增强量增强接收信号单元。

    ULTRASONIC DIAGNOSTIC APPARATUS, METHOD FOR CONTROLLING ULTRASONIC DIAGNOSTIC APPARATUS, AND CONTROL PROGRAM FOR ULTRASONIC DIAGNOSTIC APPARATUS

    公开(公告)号:US20230320698A1

    公开(公告)日:2023-10-12

    申请号:US18113136

    申请日:2023-02-23

    Inventor: Yoshihiro TAKEDA

    CPC classification number: A61B8/461 A61B8/085

    Abstract: An ultrasonic diagnostic apparatus includes: a transmitter/receiver that causes an ultrasonic probe to transmit and receive an ultrasonic beam; a signal processor that generates an ultrasonic image on a basis of a reception signal acquired from the ultrasonic probe; a target identifier that performs segmentation processing based on a structure type on the ultrasonic image to generate a likelihood image indicating an existence region of a target in the ultrasonic image; and a likelihood image synthesizer that synthesizes the likelihood images of a plurality of the ultrasonic images generated by ultrasonic scanning using the ultrasonic beams having steer angles different from each other to generate a space compound likelihood image.

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