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    • 1. 发明申请
    • VELOCITY MEASURING METHOD AND VELOCITY MEASURING DEVICE USING THE SAME
    • 使用相同的速度测量方法和速度测量装置
    • US20090177091A1
    • 2009-07-09
    • US11915625
    • 2006-01-06
    • Shinichiro UmemuraTakashi AzumaTetsuya HayashiNaoyuki Murayama
    • Shinichiro UmemuraTakashi AzumaTetsuya HayashiNaoyuki Murayama
    • A61B8/06
    • G01S15/8981A61B8/06A61B8/488G01S15/8977
    • The present invention is to provide a velocity measuring method and a velocity measuring device for carrying out the method. The velocity measuring method includes: a step (S4) for expanding N time series signals by using 0-th to (N−1)-th degree discrete Legendre function as a base; a step (S5) for calculating 2n-th degree complex expansion coefficient by multiplying a linear combination of a (2n−1)-th degree expansion coefficient and a (2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result and a 2n-th degree expansion coefficient, and calculating a (2n+1)-th degree complex expansion coefficient by multiplying the (2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result, the 2n-th degree expansion coefficient and a (2n+2)-th degree expansion coefficient; a degree decision step (S4) for determining the degree m of a coefficient having the maximum absolute value among the complex expansion coefficients; and a step (S8) for calculating a signed velocity signal concerning a moving reflection object from a ratio of square sums of the expansion coefficients or complex expansion coefficients corresponding to the degree m.
    • 本发明提供一种用于实施该方法的速度测量方法和速度测量装置。 速度测量方法包括:通过使用第0到第(N-1)度离散勒让德函数作为基础来扩展N个时间序列信号的步骤(S4) 通过将第(2n-1)个膨胀系数和第(2n + 1)次膨胀系数的线性组合乘以虚数单位然后线性地计算2n倍复数膨胀系数的步骤(S5) 组合结果和2n度膨胀系数,并且通过将第(2n + 1)度膨胀系数乘以虚数单位然后将结果线性组合来计算第(2n + 1)度复数膨胀系数, 第2n度膨胀系数和第(2n + 2)膨胀系数; 用于确定复数展开系数中具有最大绝对值的系数的程度m的度决定步骤(S4) 以及用于根据与度数m对应的展开系数或复扩展系数的平方和的比率来计算关于移动反射物体的有符号速度信号的步骤(S8)。
    • 2. 发明授权
    • Velocity measuring method and velocity measuring device using the same
    • 速度测量方法和使用其的速度测量装置
    • US07946992B2
    • 2011-05-24
    • US11915625
    • 2006-01-06
    • Shinichiro UmemuraTakashi AzumaTetsuya HayashiNaoyuki Murayama
    • Shinichiro UmemuraTakashi AzumaTetsuya HayashiNaoyuki Murayama
    • A61B8/00
    • G01S15/8981A61B8/06A61B8/488G01S15/8977
    • The present invention is to provide a velocity measuring method and a velocity measuring device for carrying out the method. The velocity measuring method includes: a step (S4) for expanding N time series signals by using 0-th to (N−1)-th degree discrete Legendre function as a base; a step (S5) for calculating 2n-th degree complex expansion coefficient by multiplying a linear combination of a (2n−1)-th degree expansion coefficient and a ( 2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result and a 2n-th degree expansion coefficient, and calculating a (2n+1)-th degree complex expansion coefficient by multiplying the (2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result, the 2n-th degree expansion coefficient and a (2n+2)-th degree expansion coefficient; a degree decision step (S4) for determining the degree m of a coefficient having the maximum absolute value among the complex expansion coefficients; and a step (S8) for calculating a signed velocity signal concerning a moving reflection object from a ratio of square sums of the expansion coefficients or complex expansion coefficients corresponding to the degree m.
    • 本发明提供一种用于实施该方法的速度测量方法和速度测量装置。 速度测量方法包括:通过使用第0到第(N-1)度离散勒让德函数作为基础来扩展N个时间序列信号的步骤(S4) 通过将第(2n-1)个膨胀系数和第(2n + 1)次膨胀系数的线性组合乘以虚数单位然后线性地计算2n倍复数膨胀系数的步骤(S5) 组合结果和2n度膨胀系数,并且通过将第(2n + 1)度膨胀系数乘以虚数单位然后将结果线性组合来计算第(2n + 1)度复数膨胀系数, 第2n度膨胀系数和第(2n + 2)膨胀系数; 用于确定复数展开系数中具有最大绝对值的系数的程度m的度决定步骤(S4) 以及用于根据与度数m对应的展开系数或复扩展系数的平方和的比率来计算关于移动反射物体的有符号速度信号的步骤(S8)。
    • 9. 发明申请
    • Ultrasonic Diagnostic Apparatus
    • 超声诊断仪
    • US20080188743A1
    • 2008-08-07
    • US11574157
    • 2005-08-23
    • Koji WakiNaoyuki Murayama
    • Koji WakiNaoyuki Murayama
    • A61B8/00
    • A61B8/14A61B8/08A61B8/463A61B8/485G01S7/52042G01S7/52074G01S7/52085
    • An ultrasonic diagnostic apparatus having a function of obtaining a tomographic image and an elastic image is adaptable to not only a close examination mode, but also a screening mode, and obtains an elastic image suitable for each examination purpose. Accordingly, the ultrasonic diagnostic apparatus of the present invention comprises tomographic image acquisition means for transmitting an ultrasonic wave from a probe to a body being examined, and receiving a reflection echo signal corresponding to the transmission of the ultrasonic wave to obtain a tomographic image, elastic image acquisition means having a first acquisition mode for determining a tissue elasticity amount of a biomedical tissue of the body being examined on the basis of the reflection echo signal to obtain an elastic image, and display means for displaying at least the elastic image. The elastic image acquisition means has a second acquisition mode different from the first acquisition mode.
    • 具有获得断层图像和弹性图像的功能的超声波诊断装置不仅适用于紧密检查模式,而且适用于筛选模式,并且获得适合于每个检查目的的弹性图像。 因此,本发明的超声波诊断装置包括:断层摄影图像获取单元,用于将超声波从探头发送到正在检查的身体,并且接收与超声波的发射相对应的反射回波信号,以获得断层图像,弹性 图像获取装置具有第一获取模式,用于基于反射回波信号确定正在检查的身体的生物医学组织的组织弹性量,以获得弹性图像;以及显示装置,用于至少显示弹性图像。 弹性图像获取装置具有与第一采集模式不同的第二采集模式。
    • 10. 发明申请
    • ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD OF ACQUIRING ULTRASONIC ELASTIC IMAGE
    • 超声波诊断装置及超声波弹性图像获取方法
    • US20090105589A1
    • 2009-04-23
    • US11916536
    • 2006-06-06
    • Takashi OsakaNaoyuki Murayama
    • Takashi OsakaNaoyuki Murayama
    • A61B8/14
    • A61B8/0858A61B8/06A61B8/14A61B8/485A61B8/543
    • [Problem] To select a period suitable for acquiring an elastic image in accordance with variation of the displacement amount of a moving tissue when the elastic image of the moving tissue is acquired, thereby stably acquiring an elastic image of high image quality.[Means for Resolution] A ultrasonic diagnostic apparatus including an ultrasonic probe for transmitting/receiving ultrasonic waves to/from a site containing a moving tissue of an examinee, ultrasonic wave transmitting means for outputting an ultrasonic wave signal for driving the ultrasonic probe, morphological image acquiring means for acquiring a morphological image representing morphological information of the site containing the moving tissue from a reflected echo signal received by the ultrasonic probe, elastic image acquiring means for acquiring an elastic image representing elastic information of the site containing the moving tissue by using a plurality of morphological image data, displacement amount detecting means for detecting a displacement amount of the moving tissue by using the morphological image data, and selecting means for selecting an elastic image acquiring period on the basis of the displacement amount, wherein the elastic image acquiring means acquires an elastic image during the selected period.
    • [问题]当获取移动组织的弹性图像时,根据移动组织的位移量的变化来选择适合于获取弹性图像的时间,从而稳定地获取高图像质量的弹性图像。 [解决方法]一种超声波诊断装置,包括:超声波探头,用于从包含受检者的移动组织的部位发送超声波;超声波发送单元,其输出用于驱动超声波探头的超声波信号,形态图像 获取装置,用于从由超声波探头接收的反射回波信号中获取表示包含移动组织的位置的形态信息的形态图像;弹性图像获取装置,用于获取表示包含移动组织的位置的弹性信息的弹性图像, 多个形态图像数据,通过使用形态图像数据检测移动组织的位移量的位移量检测装置,以及基于位移量来选择弹性图像获取周期的选择装置,其中弹性图像获取装置 获得弹性 c图像在选定期间。