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    Method and apparatus using coded excitation in ultrasonic perfusion imaging
    3.
    发明授权
    Method and apparatus using coded excitation in ultrasonic perfusion imaging 有权
    超声灌注成像中使用编码激励的方法和装置

    公开(公告)号：US06558328B2

    公开(公告)日：2003-05-06

    申请号：US09871881

    申请日：2001-06-04

    申请人： Richard Yung Chiao ,  Jonathan Matthews Rubin ,  Kai Erik Thomenius

    发明人： Richard Yung Chiao ,  Jonathan Matthews Rubin ,  Kai Erik Thomenius

    IPC分类号： A61B800

    CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  A61B8/481 ,  G01S7/52025 ,  G01S7/52038 ,  G01S15/8959 ,  G01S15/8961

    摘要： A method and an apparatus for perfusion imaging using coded excitation. Bursting pulses are scanned over the region of interest in one or more frames followed by scanning one or more encoded imaging pulses in each subsequent frame. The bursting pulse is intended to break contrast micro-bubbles within a transmit focal zone and therefore should have high mechanical index and low frequency. The basic concept is to use a very low-amplitude encoded pulse train to image the contrast agents. The low amplitude prevents the contrast bubbles in the transmit focal zone from being destroyed while imaging, and the coded excitation provides the necessary signal-to-noise ratio. The imaging pulses are transmitted during refilling of the transmit focal zone with contrast agent subsequent to transmission of the bursting pulse into the transmit focal zone. On receive, the receive vectors are decoded to form a compressed pulse.

    摘要翻译： 一种使用编码激励的灌注成像的方法和装置。 在一个或多个帧中的感兴趣区域上扫描突发脉冲，随后在每个后续帧中扫描一个或多个编码的成像脉冲。 爆裂脉冲旨在打破发射聚焦区域内的对比度微气泡，因此应具有高机械指数和低频率。 基本概念是使用非常低幅度的编码脉冲串对造影剂进行成像。 低幅度防止发射聚焦区域中的对比气泡在成像时被破坏，并且编码的激发提供必要的信噪比。 在将突发脉冲发送到发射聚焦区之后，用造影剂重新填充发射聚焦区域期间发射成像脉冲。 在接收时，接收矢量被解码以形成压缩脉冲。

    Method and apparatus for enhanced flow imaging in B-mode ultrasound
    4.
    发明授权
    Method and apparatus for enhanced flow imaging in B-mode ultrasound 失效
    用于B型超声波增强流动成像的方法和装置

    公开(公告)号：US6074348A

    公开(公告)日：2000-06-13

    申请号：US65212

    申请日：1998-04-23

    申请人： Richard Yung Chiao ,  Anne Lindsay Hall ,  Kai Erik Thomenius ,  Michael Joseph Washburn ,  Kenneth Wayne Rigby

    发明人： Richard Yung Chiao ,  Anne Lindsay Hall ,  Kai Erik Thomenius ,  Michael Joseph Washburn ,  Kenneth Wayne Rigby

    IPC分类号： H04N7/18 ,  A61B8/06 ,  G01S7/52 ,  G01S15/89 ,  G06T1/00 ,  A61B8/00

    CPC分类号： G01S15/8988 ,  G01S15/8993 ,  G01S7/52039 ,  G01S7/52046 ,  G01S7/5206 ,  G01S15/8981 ,  G01S7/52038

    摘要： A method and apparatus for ultrasonically imaging flow directly in B mode employs a sequence of pulses transmitted to a transmit focal position, with the backscattered signals from this sequence being filtered to remove echoes from stationary or slow-moving reflectors along the transmit path. The resulting flow signals are superimposed on a conventional B-mode vector and displayed. A B-mode flow image is formed by repeating this procedure for multiple transmit focal positions across the region of interest. The filtering is performed in slow time (along transmit firings) using a high-pass "wall" filter (e.g., an FIR filter) with harmonic image feed-through and optionally B-mode (fundamental) feed-through. The resulting B-mode flow image has low clutter from stationary or slow-moving tissue or vessel walls, high resolution, high frame rate and flow sensitivity in all directions.

    摘要翻译： 用于以B模式直接成像流体的方法和装置采用传输到发射焦点位置的脉冲序列，其中来自该序列的反向散射信号被滤波，以沿着发射路径移除来自静止或慢速移动的反射器的回波。 所得到的流量信号叠加在传统的B模式向量上并显示。 通过对感兴趣区域的多个发射焦点位置重复该过程来形成B模式流图像。 使用具有谐波图像馈通和可选的B模式（基本）馈通的高通“壁”滤波器（例如FIR滤波器），在缓慢的时间（沿着发射发射）进行滤波。 所得到的B模式流动图像具有来自静止或缓慢移动的组织或血管壁的低杂波，高分辨率，高帧率和在所有方向上的流动敏感性。

    Combined X-ray detector and ultrasound imager
    5.
    发明申请
    Combined X-ray detector and ultrasound imager 审中-公开
    组合X射线探测器和超声波成像仪

    公开(公告)号：US20080242979A1

    公开(公告)日：2008-10-02

    申请号：US11731327

    申请日：2007-03-30

    申请人： Rayette Ann Fisher ,  Kai Erik Thomenius ,  Charles Steven Korman

    发明人： Rayette Ann Fisher ,  Kai Erik Thomenius ,  Charles Steven Korman

    IPC分类号： A61B6/00

    CPC分类号： A61B6/4233 ,  A61B5/0091 ,  A61B5/0536 ,  A61B6/4417 ,  A61B6/4488 ,  A61B6/502 ,  A61B6/5247 ,  A61B8/0825 ,  A61B8/4416

    摘要： An imaging system is disclosed that includes a first imaging panel and a second imaging panel disposed about an imaging volume. The imaging panels may be configured to image the entire imaging volume and may include panels using any form of acoustic or electromagnetic energy such as ultrasound panels, optical panels, electrical impedance panels, field emitter/x-ray detector panels, or a combination thereof. In one embodiment, a first group of sensors are included in a 2D matrix of sensors configured to transmit ultrasound through the imaging volume to a second group of sensors included in a second 2D matrix of sensors and vice versa. In a second embodiment the system may further include a second imaging system having a transmitter, a receiver, or both, disposed adjacent the first imaging panel, the second imaging panel, or both. A third embodiment may include at least one additional imaging panel.

    摘要翻译： 公开了一种成像系统，其包括围绕成像体积设置的第一成像面板和第二成像面板。 成像面板可以被配置成对整个成像体积进行成像，并且可以包括使用任何形式的声学或电磁能量的面板，例如超声波面板，光学面板，电阻抗面板，场发射器/ X射线检测器面板或其组合。 在一个实施例中，第一组传感器被包括在传感器的2D矩阵中，所述传感器被配置为将成像体积的超声波传输到包含在第二2D传感器矩阵中的第二组传感器，反之亦然。 在第二实施例中，系统还可以包括具有邻近第一成像面板，第二成像面板或两者设置的发射器，接收器或两者的第二成像系统。 第三实施例可以包括至少一个附加成像面板。

    Apparatus And System For Sensing and Analyzing Body Sounds
    6.
    发明申请
    Apparatus And System For Sensing and Analyzing Body Sounds 审中-公开
    用于感应和分析身体声音的装置和系统

    公开(公告)号：US20080139893A1

    公开(公告)日：2008-06-12

    申请号：US11608294

    申请日：2006-12-08

    申请人： Warren Lee ,  Weston Blaine Griffin ,  Mirsaid Seyed Bolorforosh ,  Kai Erik Thomenius

    发明人： Warren Lee ,  Weston Blaine Griffin ,  Mirsaid Seyed Bolorforosh ,  Kai Erik Thomenius

    IPC分类号： A61B5/00

    CPC分类号： A61B7/04 ,  A61B2562/0204 ,  A61B2562/046

    摘要： An apparatus and system for sensing body sounds of a subject is described. The apparatus includes a flexible sheet for conformally contacting at least a portion of a subject's body surface proximate a body region generating body sounds. The apparatus also includes a plurality of acoustic sensors formed in the sheet for sensing body sounds from the subject and generating respective signals indicative of the sensed body sounds.

    摘要翻译： 描述了用于感测被摄体的身体声音的装置和系统。 该装置包括柔性片，用于在接近生物身体声音的身体区域之间保形接触被摄体的身体表面的至少一部分。 该装置还包括形成在片材中的多个声学传感器，用于感测来自被摄体的身体声音，并产生指示感测到的身体声音的各个信号。

    Enhanced tissue-generated harmonic imaging using coded excitation
    8.
    发明授权
    Enhanced tissue-generated harmonic imaging using coded excitation 有权
    使用编码激励增强组织生成的谐波成像

    公开(公告)号：US06375618B1

    公开(公告)日：2002-04-23

    申请号：US09494465

    申请日：2000-01-31

    申请人： Richard Yung Chiao ,  Yasuhito Takeuchi ,  Anne Lindsay Hall ,  Kai Erik Thomenius

    发明人： Richard Yung Chiao ,  Yasuhito Takeuchi ,  Anne Lindsay Hall ,  Kai Erik Thomenius

    IPC分类号： A61B800

    CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  A61B8/481 ,  G01S7/52025 ,  G01S7/52038 ,  G01S15/8959 ,  G01S15/8961

    摘要： In performing tissue-generated harmonic imaging using coded excitation, the transmit waveform for acquiring the N-th harmonic signal is biphase (1,−1) encoded using two code symbols of a code sequence, the portions (i.e., chips) of the transmit waveform encoded with the second code symbol each being phase-shifted by 180°/N relative to the chips encoded with the first code symbol. This is implemented by time shifting the portions (i.e., chips) of the transmit sequence which are encoded with the second code symbol by ½N fractional cycle at center frequency relative to the chips of the transmit sequence encoded with the first code symbol. During reception, the desired harmonic signal is isolated by a bandpass filter centered at twice the fundamental frequency and enhanced with decoding.

    摘要翻译： 在使用编码激励进行组织生成的谐波成像时，用于获取N次谐波信号的发送波形是使用码序列的两个码符号进行编码的双相（1，-1），发送的部分（即，码片） 用第二代码符号编码的波形，每个相对于用第一代码符号编码的码片相移180°/ N。 这是通过使用第二代码符号编码的发送序列的部分（即，芯片）以中心频率相对于以第一代码符号编码的发送序列的码片为中心的1/2分数周期来实现的。 在接收期间，期望的谐波信号由以基频两倍为中心的带通滤波器隔离，并通过解码增强。