利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

64 条记录 (耗时 0.029 秒)

    Ultrasonic diagnosing apparatus and ultrasonic image display method
    3.
    发明授权
    Ultrasonic diagnosing apparatus and ultrasonic image display method 有权
    超声诊断装置及超声波图像显示方法

    公开(公告)号：US07946989B2

    公开(公告)日：2011-05-24

    申请号：US11568877

    申请日：2005-05-13

    申请人： Kinya Hasegawa ,  Masahiro Hamamoto

    发明人： Kinya Hasegawa ,  Masahiro Hamamoto

    IPC分类号： A61B8/00

    CPC分类号： A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  A61B8/463 ,  A61B8/466 ,  A61B8/483 ,  G01S7/52061 ,  G01S7/52073 ,  G01S15/8993

    摘要： A technique for displaying an ultrasonic three-dimensional image and its tomographic image at the same time is disclosed. According to the technique, it is provided with: a transmitting/receiving circuit 111 for carrying out a transmitting/receiving control of ultrasonic waves; a three-dimensional processing unit 120 for forming a three-dimensional image from an ultrasonic reception signal received by the transmitting/receiving circuit; an image processing circuit 115 for converting the tomographic image and the three-dimensional image into a display format; and the like. The three-dimensional processing unit is composed of: an angle detecting circuit 121 for generating an angle information of a high resolution from two encoder signals of a rotation and an oscillation; and a high speed operation processing circuit 122 for carrying out processes of generation, treatment and cut of a three-dimensional image data, and the like.

    摘要翻译： 公开了一种同时显示超声三维图像及其断层图像的技术。 根据该技术，提供：发送/接收电路111，用于执行超声波的发送/接收控制; 用于从由发送/接收电路接收的超声波接收信号形成三维图像的三维处理单元120; 用于将断层图像和三维图像转换为显示格式的图像处理电路115; 等等。 三维处理单元包括：角度检测电路121，用于从旋转和振荡的两个编码器信号产生高分辨率的角度信息; 以及用于执行三维图像数据的生成，处理和切割的处理的高速运算处理电路122等。

    DEVICES AND METHODS FOR TRACKING BLOOD FLOW AND DETERMINING PARAMETERS OF BLOOD FLOW
    4.
    发明申请
    DEVICES AND METHODS FOR TRACKING BLOOD FLOW AND DETERMINING PARAMETERS OF BLOOD FLOW 审中-公开
    跟踪血液流量和确定血流参数的装置和方法

    公开(公告)号：US20080269609A1

    公开(公告)日：2008-10-30

    申请号：US12171008

    申请日：2008-07-10

    申请人： Kenneth Abend ,  Elsayed H. Attia

    发明人： Kenneth Abend ,  Elsayed H. Attia

    IPC分类号： A61B8/06

    CPC分类号： G01S7/52026 ,  A61B8/06 ,  A61B8/13 ,  A61B8/463 ,  A61B8/483 ,  G01S7/52034 ,  G01S7/5206 ,  G01S7/52061 ,  G01S7/52065 ,  G01S7/52071 ,  G01S7/52073 ,  G01S7/52074 ,  G01S7/52079 ,  G01S7/52095 ,  G01S15/52 ,  G01S15/8927 ,  G01S15/8979 ,  G01S15/899 ,  G01S15/8993

    摘要： Provided herein is a method for use in medical applications that permits (1) affordable three-dimensional imaging of blood flow using a low-profile easily-attached transducer pad, (2) real-time blood-flow vector velocity, and (3) long-term unattended Doppler-ultrasound monitoring in spite of motion of the patient or pad. The pad and associated processor collects and Doppler processes ultrasound blood velocity data in a three dimensional region through the use of a planar phased array of piezoelectric elements. The invention locks onto and tracks the points in three-dimensional space that produce the locally maximum blood velocity signals. The integrated coordinates of points acquired by the accurate tracking process is used to form a three-dimensional map of blood vessels and provide a display that can be used to select multiple points of interest for expanded data collection and for long term continuous and unattended blood flow monitoring. The three dimensional map allows for the calculation of vector velocity from measured radial Doppler.A thinned array (greater than half-wavelength element spacing of the transducer array) is used to make a device of the present invention inexpensive and allow the pad to have a low profile (fewer connecting cables for a given spatial resolution). The full aperture is used for transmit and receive so that there is no loss of sensitivity (signal-to-noise ratio) or dynamic range. Utilizing more elements (extending the physical array) without increasing the number of active elements increases the angular field of view. A further increase is obtained by utilizing a convex non-planar surface.

    摘要翻译： 本文提供了一种在医疗应用中使用的方法，其允许（1）使用低轮廓容易附接的换能器垫的负担得起的血流成像，（2）实时血流矢量速度，和（3） 长期无人值守的多普勒超声监测，尽管患者或垫的运动。 衬垫和相关处理器收集和多普勒通过使用压电元件的平面相控阵列在三维区域中处理超声血流速度数据。 本发明锁定并跟踪产生局部最大血液速度信号的三维空间中的点。 通过精确跟踪过程获得的点的积分坐标用于形成血管的三维图，并提供可用于选择多个兴趣点的显示器，用于扩展数据收集和长期连续和无人值守的血流量 监控。 三维地图允许从测量的径向多普勒计算矢量速度。 使用稀疏阵列（换能器阵列的大于半波长的元件间隔）来使得本发明的装置成本低廉并且允许垫具有低轮廓（对于给定的空间分辨率而言更少的连接电缆）。 全孔径用于发射和接收，因此不会有灵敏度（信噪比）或动态范围的损失。 利用更多的元素（扩展物理阵列）而不增加有源元素的数量增加了角度视场。 通过利用凸非平面表面获得进一步的增加。

    Pipeline process for automatically measuring object boundary from ultrasound image samples
    7.
    发明授权
    Pipeline process for automatically measuring object boundary from ultrasound image samples 失效
    用于从超声图像样本自动测量物体边界的管道过程

    公开(公告)号：US5795296A

    公开(公告)日：1998-08-18

    申请号：US802979

    申请日：1997-02-20

    申请人： Sayan Pathak ,  Vikram Chalana ,  Yongmin Kim

    发明人： Sayan Pathak ,  Vikram Chalana ,  Yongmin Kim

    IPC分类号： A61B5/107 ,  A61B8/08 ,  G01S7/52 ,  A61B8/00

    CPC分类号： A61B5/1075 ,  A61B8/0866 ,  G01S7/52036 ,  G01S7/52073 ,  A61B8/0816 ,  G01S7/52061

    摘要： An ultrasound system automatically measures fetal head size from ultrasound images. An ultrasound image of the fetal head is detected. A radial maxima point is identified on each of a plurality of radii extending from a substantially common vertex point within the fetal head image. Each radial maxima point corresponds to an ultrasound sample along its corresponding radius, and has a maximum ultrasound echo strength. Outlier points are removed and the curve filtered to derive an initial fetal head boundary. An inner fetal head boundary and outer fetal head boundary are derived from the initial fetal head boundary and a predetermined fetal skull thickness, and fetal head size is computed from the inner fetal head boundary and the outer fetal head boundary. Processing is allocated among multiprocessors and performed in pipeline fashion to enable real-time interactive imaging and measuring.

    摘要翻译： 超声波系统可以自动测量超声图像中的胎头大小。 检测胎头的超声图像。 在从胎头图像中的基本上共同的顶点延伸的多个半径中的每一个上识别径向最大点。 每个径向最大点对应于沿其相应半径的超声波样本，并且具有最大超声回波强度。 去除异常值点，并且过滤曲线以导出初始胎头头部边界。 内胎头边界和外胎头边界是从最初的胎儿头部边界和预定的胎儿颅骨厚度得出的，并且胎儿头部大小是从胎儿内部胎头边界和外部胎儿头部边界计算出来的。 处理在多处理器之间分配并以流水线方式执行，以实现实时交互式成像和测量。

    Method and apparatus for dual amplitude dual time-of-flight ultrasonic imaging
    8.
    发明授权
    Method and apparatus for dual amplitude dual time-of-flight ultrasonic imaging 失效
    双幅双倍飞行时间超声成像的方法和装置

    公开(公告)号：US5750895A

    公开(公告)日：1998-05-12

    申请号：US675509

    申请日：1996-07-03

    申请人： Engmin James Chern ,  David W. Butler

    发明人： Engmin James Chern ,  David W. Butler

    IPC分类号： G01N29/06 ,  G01N29/11 ,  G01N29/34 ,  G01N29/38 ,  G01N29/40 ,  G01S7/52 ,  G01S15/89

    CPC分类号： G01S15/8938 ,  G01N29/0609 ,  G01N29/0645 ,  G01N29/069 ,  G01N29/11 ,  G01N29/348 ,  G01N29/38 ,  G01N29/40 ,  G01S7/52061 ,  G01N2291/2632

    摘要： A method and apparatus for ultrasonic imaging which includes scanning a test specimen located in a test fixture in a predetermined scan pattern. Propagating and receiving reflected pulses of ultrasonic energy from an ultrasonic transducer directed to a surface of the test specimen. Detecting and generating data of both the amplitude and the depth of a defect in the test specimen from the pulses received from the test specimen. Merging the data of the amplitude and the data of the depth of the defect into composite data and then displaying the composite data in a three dimensional image whereby a mesh of both amplitude and depth data of the defect is displayed in a single image of the defect.

    摘要翻译： 一种用于超声成像的方法和装置，其包括以预定扫描图案扫描位于测试夹具中的测试样本。 从超声波传感器传播和接收超声能量的反射脉冲，该超声波传感器指向试样的表面。 从试样接收的脉冲中检测并产生试样中缺陷的振幅和深度的数据。 将缺陷的幅度和深度的数据合并到复合数据中，然后在三维图像中显示合成数据，由此将缺陷的幅度和深度数据的网格显示在缺陷的单个图像中 。

    Ultrasound system for automatically measuring fetal head size
    9.
    发明授权
    Ultrasound system for automatically measuring fetal head size 失效
    超声系统用于自动测量胎头大小

    公开(公告)号：US5605155A

    公开(公告)日：1997-02-25

    申请号：US624949

    申请日：1996-03-29

    申请人： Vikram Chalana ,  Yongmin Kim ,  David R. Haynor

    发明人： Vikram Chalana ,  Yongmin Kim ,  David R. Haynor

    IPC分类号： A61B5/107 ,  A61B8/08 ,  G01S7/52 ,  A61B8/00

    CPC分类号： A61B5/1075 ,  A61B8/0866 ,  G01S7/52036 ,  G01S7/52073 ,  A61B8/0816 ,  G01S7/52061

    摘要： An ultrasound system automatically measures fetal head size from ultrasound images. An ultrasound image of the fetal head is detected. A radial maxima point is identified on each of a plurality of radii extending from a substantially common vertex point within the fetal head image. Each radial maxima point corresponds to an ultrasound sample along its corresponding radius, and has a maximum ultrasound echo strength. A first curve is defined from the radial maxima points. The remaining unfiltered radial maxima points are fit to a second curve, and the second curve is the detected curved boundary. The detected curve boundary is modified to define an initial fetal head boundary. An inner fetal head boundary and outer fetal head boundary are derived from the initial fetal head boundary and a predetermined fetal skull thickness, and fetal head size is computed from the inner fetal head boundary and the outer fetal head boundary.

    摘要翻译： 超声波系统可以自动测量超声图像中的胎头大小。 检测胎头的超声图像。 在从胎头图像中的基本上共同的顶点延伸的多个半径中的每一个上识别径向最大点。 每个径向最大点对应于沿其相应半径的超声波样本，并且具有最大超声回波强度。 从径向最大点定义第一条曲线。 剩余的未过滤的径向最大点适合于第二曲线，第二曲线是检测到的弯曲边界。 检测到的曲线边界被修改以定义初始胎儿头部边界。 内胎头边界和外胎头边界是从最初的胎儿头部边界和预定的胎儿颅骨厚度得出的，并且胎儿头部大小是从胎儿内部胎头边界和外部胎儿头部边界计算出来的。

    Diagnostic ultrasound apparatus
    10.
    发明授权
    Diagnostic ultrasound apparatus 失效
    诊断超声仪

    公开(公告)号：US5490510A

    公开(公告)日：1996-02-13

    申请号：US424040

    申请日：1995-04-18

    申请人： Kazuhiro Shiro

    发明人： Kazuhiro Shiro

    IPC分类号： G01S7/52 ,  A61B8/00

    CPC分类号： G01S7/52061 ,  G01S7/52034 ,  G01S7/52025

    摘要： A diagnostic ultrasound apparatus includes an ultrasound probe for transmitting and receiving ultrasound waves to and from a patient to obtain echo data of the patient, an echo data memory in which the echo data are to be written by being identified with addresses S, B represented by a polar coordinate system, a frame memory in which the echo data read out from the echo data memory are to be written according to first addresses X, Y represented by a rectangular coordinate system, and an address generator for sequentially generating the first addresses X, Y which are used when the echo data are written into the frame memory. The apparatus further includes an address converting section for converting the addresses X, Y generated by the address generator into the polar coordinate addresses R, .theta.. The address conversion is carried out based upon addresses x, y of a representative quadrant which is one of a plurality of quadrants of a second rectangular coordinate system which is obtained by converting the first rectangular coordinate system so as to correspond to the polar coordinate system, and quadrant discriminating information which discriminates which of the plurality of quadrants the representative quadrant belongs to. As a result, the echo data are read out from the echo data memory in accordance with the converted polar coordinate addresses R, .theta. which are supplied from the address converting section, and thus readout echo data are written into the frame memory. Therefore, in this apparatus, since the address conversion from the addresses X, Y to the addresses R, .theta. is performed based upon the addressed x, y of the representative quadrant and the quadrant discriminating information extracted from the X, Y addresses, the storage capacity of the address conversion table can be greatly reduced

    摘要翻译： 诊断超声装置包括用于向患者发送和接收超声波以获得患者的回波数据的超声波探头，其中通过用地址S，B表示的回波数据被写入的回波数据存储器，所述回波数据由 极坐标系，根据由直角坐标系表示的第一地址X，Y来从回波数据存储器读出的回波数据写入的帧存储器，以及用于顺序生成第一地址X的地址发生器， Y，当回波数据被写入帧存储器时使用。 该装置还包括地址转换部分，用于将由地址发生器产生的地址X，Y转换成极坐标地址R，theta。 基于通过将第一直角坐标系转换为与极坐标系对应而获得的第二直角坐标系的多个象限之一的代表性象限的地址x，y执行地址转换， 以及鉴别代表象限属于多个象限中的哪一个的象限识别信息。 结果，根据从地址转换部分提供的经转换的极坐标地址R，θ从回波数据存储器中读出回波数据，从而将读出的回波数据写入帧存储器。 因此，在该装置中，由于根据代表象限的寻址的x，y和从X，Y地址提取的象限识别信息，从地址X，Y到地址R，theta的地址转换被执行， 地址转换表的容量可以大大降低