Ultrasound imaging system and method using weighted chirp signals
    1.
    发明申请
    Ultrasound imaging system and method using weighted chirp signals 有权
    超声成像系统和使用加权啁啾信号的方法

    公开(公告)号:US20030115963A1

    公开(公告)日:2003-06-26

    申请号:US10184727

    申请日:2002-06-27

    IPC分类号: G01N029/00

    摘要: The present invention discloses an ultrasound imaging system and method which make a harmonic image of a good SNR(signal-to-noise ratio) by effectively removing fundamental frequency components through a pulse-compressing using the weighted chirp signals. The ultrasound imaging system includes: a transducer array for converting weighted chirp signals to ultrasound signals, and transmitting the ultrasound signals to a target object; a receiver for receiving signals reflected from the target object; a pulse-compressor for selectively pulse-compressing fundamental frequency components or harmonic frequency components in the reflected signals; and a producer for producing receive-focused signals from the pulse-compressed signals. Therefore, the ultrasound imaging system can form ultrasound image using the fundamental frequency components, and can form ultrasound harmonic image using the harmonic frequency components according to 2fo-correlation method or 2fo-correlation(PI) method.

    摘要翻译: 本发明公开了一种超声波成像系统和方法,其通过使用加权线性调频信号通过脉冲压缩有效地去除基本频率分量来使得具有良好SNR(信噪比)的谐波图像。 所述超声波成像系统包括:用于将加权啁啾信号转换为超声信号的换能器阵列,以及将所述超声信号发送到目标物体; 用于接收从目标对象反射的信号的接收器; 脉冲压缩器,用于选择性地脉冲压缩反射信号中的基频分量或谐波频率分量; 以及用于从脉冲压缩信号产生接收聚焦信号的生成器。 因此,超声成像系统可以使用基频分量形成超声波图像,并且可以使用根据2相关方法或2相关(PI)方法的谐波频率分量形成超声波谐波图像。

    Three-dimensional ultrasound imaging system for performing receive-focusing at voxels corresponding to display pixels
    2.
    发明申请
    Three-dimensional ultrasound imaging system for performing receive-focusing at voxels corresponding to display pixels 有权
    用于在对应于显示像素的体素处进行接收聚焦的三维超声成像系统

    公开(公告)号:US20020193688A1

    公开(公告)日:2002-12-19

    申请号:US10133159

    申请日:2002-04-26

    申请人: MEDISON CO., LTD.

    IPC分类号: A61B008/14

    摘要: A three-dimensional (3D) ultrasound imaging system performs receive-focusing at voxels corresponding to pixels of a display device. The system comprises a display device; transducers for transmitting ultrasound signals toward the object and receiving echo signals from a voxel corresponding to a pixel on the display device, wherein the voxel is on a scanning region of the object; an RF volume memory for storing signals from the transducers; a signal processor for processing the stored signals to obtain 3D data sets with respect to the voxel; and an image former for forming the 3D image.

    摘要翻译: 三维(3D)超声成像系统在对应于显示装置的像素的体素上执行接收聚焦。 该系统包括显示装置; 用于向对象发送超声信号的传感器,并且从与显示装置上的像素相对应的体素接收回波信号,其中,所述体素位于所述对象的扫描区域上; 用于存储来自换能器的信号的RF音量存储器; 信号处理器,用于处理存储的信号以获得相对于体素的3D数据集; 以及用于形成3D图像的图像形成装置。

    Synthetic aperture focusing method for ultrasound imaging based on planar waves
    3.
    发明申请
    Synthetic aperture focusing method for ultrasound imaging based on planar waves 有权
    基于平面波的超声成像合成孔径聚焦方法

    公开(公告)号:US20030125628A1

    公开(公告)日:2003-07-03

    申请号:US10180614

    申请日:2002-06-25

    申请人: MEDISON CO., LTD

    IPC分类号: A61B008/02

    摘要: Disclosed is a synthetic aperture focusing method for ultrasound imaging system based on planar waves. The planar waves are transmitted to a target object with an angle of wave propagation corresponding to a center position of a receive subaperture, and echo signals reflected from the target object are received by the receive subaperture, and the received echo signals are stored in a receive pattern memory, and the stored echo signals are dynamic-focused, and finally the dynamic-focused signals are combined to form at least one beam pattern.

    摘要翻译: 公开了一种基于平面波的超声成像系统的合成孔径聚焦方法。 平面波以与接收子孔径的中心位置相对应的波传播角度传输到目标物体,并且由目标物体反射的回波信号由接收子孔径接收,并且接收到的回波信号被存储在接收器 模式存储器,并且存储的回波信号是动态聚焦的,并且最后将动态聚焦信号组合以形成至少一个波束图案。