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240 条记录 (耗时 0.016 秒)

    DUAL PATH PROCESSING FOR OPTIMAL SPECKLE TRACKING
    91.
    发明公开
    DUAL PATH PROCESSING FOR OPTIMAL SPECKLE TRACKING 审中-公开
    两种不同的方法处理优化SPECKLEVERFOLGUNG

    公开(公告)号：EP2082261A2

    公开(公告)日：2009-07-29

    申请号：EP07826970.1

    申请日：2007-11-02

    申请人： Koninklijke Philips Electronics N.V.

    发明人： THIELE, Karl E.

    IPC分类号： G01S15/00

    CPC分类号： A61B8/08 ,  G01S7/52026 ,  G01S7/52071 ,  G01S7/52077 ,  G01S15/8979 ,  G01S15/8995

    摘要： This invention relates generally to an improved system and method that combines enhancing and mitigating techniques for speckle tracking, for obtaining a series of images of the movement of a target, such as tissue, over time. The method comprises steps of transmitting sound waves into the human body and outputting echoes of these sound waves; receiving and beamforming the echoes to produce scan line data; processing scan line data to display anatomical information using a method which reduces speckle; processing scan line data using a method or procedure which does not reduce speckle, and during one scan sequence, simultaneously acquiring the two scan line data, that data processed reducing speckle and that data processed without reducing speckle.

    Ultrasonic apparatus and ultrasonic diagnostic method
    92.
    发明公开
    Ultrasonic apparatus and ultrasonic diagnostic method 有权
    Ultraschallvorrichtung

    公开(公告)号：EP1967866A1

    公开(公告)日：2008-09-10

    申请号：EP08004082.7

    申请日：2008-03-05

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Medical Systems Corporation

    发明人： Sato, Takeshi

    IPC分类号： G01S15/89 ,  G01S7/524 ,  G01S7/52 ,  A61B8/14 ,  A61B8/00 ,  A61B8/06 ,  G01N29/34 ,  G01N29/032 ,  G01N29/11

    CPC分类号： A61B8/14 ,  A61B8/06 ,  A61B8/481 ,  A61B8/483 ,  G01S7/52026 ,  G01S7/52036 ,  G01S7/5206 ,  G01S7/52071 ,  G01S15/8954 ,  G01S15/8961 ,  G01S15/8979 ,  G01S15/8988

    摘要： An ultrasonic apparatus has a pulse transmission and reception unit (2,4), an envelope curve detection unit (25), a time difference detection unit (27), and an attenuation characteristic obtaining unit (29). The pulse transmission and reception unit transmits a first transmitted pulse that a frequency increases with time and a second transmitted pulse that the frequency decreases with time, further receives a first received pulse corresponding to the first transmitted pulse and a second received pulse corresponding to the second transmitted pulse. The envelope curve detection unit detects a first envelope curve based on the first received signal and a second envelope curve based on the second received signal, respectively. The time difference detection unit detects a time difference between the first envelope curve and the second envelope curve. The attenuation characteristic obtaining unit obtains a frequency dependent ultrasound attenuation characteristic based on the time difference.

    摘要翻译： 超声波装置具有脉冲发送接收单元（2,4），包络线检测单元（25），时差检测单元（27）和衰减特性获取单元（29）。 脉冲发送和接收单元发送频率随时间增加的第一发送脉冲和频率随时间减小的第二发送脉冲，进一步接收对应于第一发送脉冲的第一接收脉冲和对应于第二发送脉冲的第二接收脉冲 传输脉冲。 包络线检测单元分别基于第一接收信号和基于第二接收信号的第二包络线检测第一包络线。 该时间差检测单元检测第一包络线和第二包络线之间的时间差。 衰减特性获取单元基于时间差获得频率相关的超声衰减特性。

    METHOD AND APPARATUS FOR ELASTICITY IMAGING
    93.
    发明公开
    METHOD AND APPARATUS FOR ELASTICITY IMAGING 审中-公开
    方法和装置用于表示回弹

    公开(公告)号：EP1942806A2

    公开(公告)日：2008-07-16

    申请号：EP06739421.3

    申请日：2006-03-22

    申请人： Aloka Co. Ltd.

    发明人： RADULESCU, Emil, G.

    IPC分类号： A61B8/00

    CPC分类号： A61B8/14 ,  A61B5/0051 ,  A61B5/0053 ,  A61B8/08 ,  A61B8/485 ,  G01S7/52026 ,  G01S7/52034 ,  G01S7/52042 ,  G01S7/5206

    摘要： A computational efficient algorithm for compression analysis of free-hand static elasticity imaging performed using medical diagnostic ultrasound imaging equipment offers tissue compression quality and quantity feedback to the operator. The algorithm includes a criterion for automatic selection of the most advantageous pre- and post-compression frame pairs delivering elasticity images of optimal dynamic ranges (DR) and signal-to-noise ratios (SNR) . The use of the algorithm in real time eases operator training and reduces significantly the amount of artifact in the elasticity images while lowering the computational burden.

    ULTRASONIC DIAGNOSIS APPARATUS
    95.
    发明公开
    ULTRASONIC DIAGNOSIS APPARATUS 审中-公开
    ULTRASCHALLDIAGNOSEGERÄT

    公开(公告)号：EP1709908A1

    公开(公告)日：2006-10-11

    申请号：EP05703342.5

    申请日：2005-01-06

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： UCHIKAWA, Akiko c/o Matsushita Elect.Ind.Co. Ltd. ,  ITO, Yoshihiko c/o Matsushita Elect.Ind.Co. Ltd. ,  NAKAMURA, Yasuhiro c/o Matsushita Elect.Ind.Co.Ltd

    IPC分类号： A61B8/00

    CPC分类号： A61B8/00 ,  G01S7/52026 ,  G01S7/52077 ,  G01S7/52085 ,  G01S7/52095 ,  G01S15/8979

    摘要： There is provided first storage means (3) for storing digital reception beam data converted from a reception beam formed from an ultrasonic received signal; first control means (2) for controlling reading and writing of data from/in the first storage means; a filter coefficient calculation portion (5) for calculating a filter coefficient based on information on the reception beam, the information including a positional relationship between the reception beam and a transmission beam; and a first spatial filter operation portion (4) for subjecting each of a plurality of the reception beam data including data of beams received in parallel from a single transmission beam to filtering processing for reducing a difference in image quality between adjacent beams based on the filter coefficient. Image data output from the first spatial filter operation portion are converted into scanning of a display monitor (8) so as to display an image on the display monitor. In an ultrasonic diagnosis apparatus having a parallel reception function, it is possible to display a high-quality ultrasonic image in which stripes are generated less in a direction in which acoustic lines are arranged and that is well defined in detail.

    摘要翻译： 提供了用于存储从由超声波接收信号形成的接收波束转换的数字接收波束数据的第一存储装置（3） 用于控制来自/在第一存储装置中的数据的读取和写入的第一控制装置（2） 滤波器系数计算部分（5），用于基于关于接收波束的信息计算滤波器系数，所述信息包括接收波束和发射波束之间的位置关系; 以及第一空间滤波器操作部分（4），用于对包括从单个传输波束并行接收的波束的数据的多个接收波束数据中的每一个进行滤波处理，以减少相邻波束之间的图像质量差异， 系数。 从第一空间滤波器操作部分输出的图像数据被转换为显示监视器（8）的扫描，以便在显示监视器上显示图像。 在具有平行接收功能的超声波诊断装置中，可以显示其中排列有声线的方向上产生条纹少的细节的高质量超声波图像，并且其详细定义。

    Ultrasonic diagnostic apparatus, image processing apparatus and image processing method
    96.
    发明公开
    Ultrasonic diagnostic apparatus, image processing apparatus and image processing method 有权
    Ultraschalldiagnosegerät，Bildverarbeitungsgerätund Bildverarbeitungsverfahren

    公开(公告)号：EP1614387A1

    公开(公告)日：2006-01-11

    申请号：EP05014457.5

    申请日：2005-07-04

    申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Medical Systems Corporation

    发明人： Kamiyama, Naohisa c/o Intell. Prop. Division

    IPC分类号： A61B8/00 ,  G01S7/52

    CPC分类号： A61B8/467 ,  A61B8/06 ,  A61B8/13 ,  A61B8/461 ,  A61B8/469 ,  A61B8/483 ,  G01S7/52026 ,  G01S7/52034 ,  G01S7/5206 ,  G01S7/52066 ,  G01S7/52069 ,  G01S7/52071 ,  G01S7/52073 ,  G01S7/52074 ,  G01S7/52084 ,  G01S15/8979

    摘要： An ultrasonic diagnostic apparatus comprises a unit for generating image data, an image reconstructing unit and an image synthesizing unit. The unit for generating image data generates image data for displaying a tomogram of a subject by luminance according to signal intensities of echo signals obtained through ultrasonic waves transmitted to the subject. The image reconstructing unit generates reconstructed images by alternating at least one of a luminance and a color of an area of a predetermined luminance so that the area of the predetermined luminance is emphasized in the image data while the predetermined luminance is altered in turn. The image synthesizing unit supplies the reconstructed images to a display unit so that the reconstructed images are displayed on the display unit in turn.

    摘要翻译： 超声波诊断装置包括用于产生图像数据的单元，图像重建单元和图像合成单元。 用于产生图像数据的单元根据通过发送到被摄体的超声波获得的回波信号的信号强度，生成用于显示被检体的断层图像的图像数据。 图像重建单元通过交替预定亮度的区域的亮度和颜色中的至少一个来生成重建图像，使得在预定亮度依次改变时在图像数据中强调预定亮度的面积。 图像合成单元将重建图像提供给显示单元，使得重建图像依次显示在显示单元上。

    ULTRASOUND CLUTTER FILTER
    99.
    发明公开
    ULTRASOUND CLUTTER FILTER 审中-公开
    超声杂波过滤器

    公开(公告)号：EP1402283A2

    公开(公告)日：2004-03-31

    申请号：EP02738476.7

    申请日：2002-06-20

    申请人： Koninklijke Philips Electronics N.V.

    发明人： HAGER, Richard, A. ,  CLARK, David, W. ,  THIELE, Karl, E. ,  WITT, Jerome, F.

    IPC分类号： G01S15/00

    CPC分类号： G01S15/8981 ,  G01S7/52026

    摘要： A method for adaptive filtering of clutter from a sample stream having a blood signal component and a clutter signal component comprises the steps of (a) estimating a signal strength of the sample stream, and (b) determining an order of a filter based on a relationship between the signal strength estimate and a signal strength threshold. The filter receives the sample stream and provides an output stream having a reduced level of the clutter signal component relative to the blood signal component.