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11 条记录 (耗时 0.016 秒)

    ULTRASONIC DIAGNOSIS APPARATUS
    1.
    发明公开
    ULTRASONIC DIAGNOSIS APPARATUS 失效
    超声心动图

    公开(公告)号：EP0917857A1

    公开(公告)日：1999-05-26

    申请号：EP97927397.6

    申请日：1997-06-20

    申请人： HITACHI MEDICAL CORPORATION

    发明人： MIWA, Yuuichi ,  SHINOMURA, Ryuichi ,  TAMANO, Satoshi

    IPC分类号： A61B8/00

    CPC分类号： G01S7/52046 ,  G01S7/52036

    摘要： To achieve a high resolution, by modifying a delay time distribution of received waves with correlation computations between signals from adjacent elements and by removing influences of inhomogeneities in a living body with a simple computing circuit for correlation factors. A time delay unit 2 for delaying receiving signals from a probe 1, an adder unit 3 for adding outputs of the time delay unit 2 and forming ultrasonic beam, a phase difference computing unit 5 for computing phase differences between signals and a correlation factor computing unit 6 for computing correlation factors are provided, the outputs of the correlation factor computing unit 6 are compared with values of a correlation factor storage unit 8 by a correlation factor comparing unit 9, and when the former is larger than the latter, the outputs of the phase difference computing unit 5 and the outputs of the correlation factor computing unit 6 are respectively stored in a phase difference storage unit 7 and the correlation factor storage unit 8, and at the moment when all of the phase difference computations have been completed, the time delay unit 2 is controlled by making use of the value stored in the phase difference storage unit 7. The phase difference computations and the correlation factor computations are complex number computation, and only when the real part of a complex number which is an object for the phase difference computation is positive, a sign judging unit 10 issues an operation command to the correlation factor comparing unit 9.

    摘要翻译： 为了实现高分辨率，通过利用来自相邻元素的信号之间的相关计算修改接收波的延迟时间分布，并且通过用于相关因子的简单计算电路去除活体中的不均匀性的影响。 用于延迟来自探针1的接收信号的时间延迟单元2，用于相加时间延迟单元2的输出和形成超声波束的加法器单元3，用于计算信号之间的相位差的相位差计算单元5和相关因子计算单元 提供用于计算相关因子的6，将相关因子计算单元6的输出与相关因子比较单元9的相关因子存储单元8的值进行比较，并且当前者大于后者时，输出 相位差计算单元5和相关因子计算单元6的输出分别存储在相位差存储单元7和相关因子存储单元8中，并且在所有相位差计算完成的时刻，时间 延迟单元2通过利用存储在相位差存储单元7中的值来控制。相位差计算和相关性 因子计算是复数计算，只有当作为相位差计算的对象的复数的实数为正时，符号判断单元10向相关因子比较单元9发出操作命令。

    BIOLOGICAL TISSUE ELASTICITY MEASUREMENT METHOD AND ULTRASONOGRAPHIC DEVICE
    2.
    发明公开
    BIOLOGICAL TISSUE ELASTICITY MEASUREMENT METHOD AND ULTRASONOGRAPHIC DEVICE 有权
    生物学家GEWEBEELASTIZITÄTS-MESSVERFAHREN UNDULTRASCHALLGERÄT

    公开(公告)号：EP1557125A1

    公开(公告)日：2005-07-27

    申请号：EP03758988.4

    申请日：2003-10-28

    申请人： Hitachi Medical Corporation

    发明人： TAMANO, Satoshi ,  OSAKA, Takashi ,  OSHIKI, Mitsuhiro ,  MATSUMURA, Takeshi ,  SHIINA, Tsuyoshi

    IPC分类号： A61B8/08

    CPC分类号： G01S7/52074 ,  A61B8/08 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52071 ,  G01S7/52085 ,  G01S15/8952

    摘要： An ultrasonographic apparatus includes: an ultrasonic probe 1 for transmitting/receiving an ultrasonic wave to/from a patient, means 2 for generating an ultrasonic transmission signal and transmitting it to the ultrasonic probe, means 3 for receiving a reflection echo signal received by the ultrasonic probe; means 4 for re-constructing a form image according to the reception signal processed by the reception processing means; means 5 for re-constructing an elasticity image according to the reception signal processed by the reception processing means; means 7 for displaying the form image and the elasticity image; means 8 for switching between the form image mode and elasticity image mode; and means 9 for performing control so as to selectively acquire the form image and the elasticity image in the measurement period of the elasticity image mode switched by the mode switching means. Thus, it is possible to perform measurement associated with acquisition of both the form image and the elasticity image of the biological tissue and improve the image quality of the form image such as a B mode image and the image quality of the elasticity image such as elasticity ratio and elasticity distortion.

    摘要翻译： 超声波诊断装置包括：用于向患者发送超声波的超声波探头1，用于产生超声波发送信号并将其发送到超声波探头的装置2，用于接收由超声波接收的反射回波信号的装置3 探测; 用于根据由接收处理装置处理的接收信号重构构图的装置4; 用于根据由接收处理装置处理的接收信号重构弹性图像的装置5; 用于显示表格图像和弹性图像的装置7; 用于在形式图像模式和弹性图像模式之间切换的装置8; 以及用于执行控制的装置9，以便在通过模式切换装置切换的弹性图像模式的测量周期中选择性地获取形状图像和弹性图像。 因此，可以进行与生物组织的形状图像和弹性图像的获取相关联的测量，并且提高诸如B模式图像的形式图像的图像质量以及诸如弹性的弹性图像的图像质量 比例和弹性变形。

    ULTRASONOGRAPHIC DEVICE
    3.
    发明公开
    ULTRASONOGRAPHIC DEVICE 审中-公开
    超声波设备

    公开(公告)号：EP1554982A1

    公开(公告)日：2005-07-20

    申请号：EP03756668.4

    申请日：2003-10-17

    申请人： Hitachi Medical Corporation

    发明人： MATSUMURA, Takeshi ,  TAMANO, Satoshi ,  MITAKE, Tsuyoshi ,  SIINA, Tsuyoshi ,  YAMAKAWA, Makoto

    IPC分类号： A61B8/08

    CPC分类号： A61B8/485 ,  A61B5/441 ,  A61B8/08 ,  A61B8/5238 ,  A61B2562/0247 ,  A61B2562/046 ,  G01S7/52042 ,  G01S7/52071 ,  G01S7/52074

    摘要： An ultrasound diagnostic apparatus according to the present invention includes means for generating a tomographic image from a reflected echo signal received by the probe corresponding to an ultrasound wave transmitted by a probe put on an object to be examined, means for measuring a displacement of the object's tissue and calculating elasticity information on the basis of a reflected echo signal received from the object corresponding to an ultrasound wave transmitted while the pressure applied when the probe is put on the object is changed, and generating a color elasticity image from the elasticity information, means for generating a translucent image from the color elasticity image on the basis of image information of either the tomographic image or the color elasticity image, and overlapping the translucent image and the tomographic image, and means for displaying the combined image. With this structure, relation between the tissue and its elastic behavior can be properly diagnosed with the ultrasound diagnostic image.

    摘要翻译： 根据本发明的超声波诊断设备包括：用于根据由探头接收的反射回波信号产生断层图像的装置，所述探头接收与由放置在待检查对象上的探头发射的超声波相对应的探头;用于测量物体的位移的装置 根据从对象接收的反射回波信号计算弹性信息，所述反射回波信号对应于当探头放置在物体上时所施加的压力发生变化时传输的超声波，并且根据弹性信息生成彩色弹性图像， 用于基于断层图像或彩色弹性图像的图像信息从彩色弹性图像生成半透明图像，并且重叠半透明图像和断层图像;以及用于显示组合图像的装置。 利用该结构，可以利用超声诊断图像适当地诊断组织与其弹性行为之间的关系。

    ULTRASONIC PROBE AND ULTRASONOGRAPHIC DEVICE
    4.
    发明公开
    ULTRASONIC PROBE AND ULTRASONOGRAPHIC DEVICE 有权
    超音波探头与超声设备

    公开(公告)号：EP1642532A1

    公开(公告)日：2006-04-05

    申请号：EP04746903.6

    申请日：2004-07-02

    申请人： HITACHI MEDICAL CORPORATION

    发明人： TAMANO, Satoshi ,  HANAOKA, Akihiko ,  OKAZAKI, Hideki ,  KOBAYASHI, Takashi ,  YOSHIDA, Sachie

    IPC分类号： A61B8/12

    CPC分类号： A61B8/12 ,  A61B8/4488

    摘要： In an ultrasonic probe including an insert section which is to be inserted into a body cavity organ of a subject and a handle section which is coupled with the insert section, a plurality of vibrator elements (104) are disposed at a tip end of the insert section over the entire 360 degree circumference thereof and in the handle section, a connection change over switch (105) is disposed which successively changes over the electrical connection of a predetermined number of the vibrator elements among the plurality of the vibrator elements to be connected with a predetermined number of ultrasonic wave transmission and reception channels (701,702) in an ultrasonic diagnostic apparatus main body for transmitting and receiving ultrasonic wave signals. Accordingly, an ultrasonic probe which permits to collect ultrasonic wave images including tomograms and blood flow images of high quality without positional irregularity over the entire circumference of the insert section of the ultrasonic probe and to display the same, and an ultrasonic diagnostic apparatus using the same are obtained.

    ULTRASONOGRAPHIC DEVICE
    10.
    发明公开
    ULTRASONOGRAPHIC DEVICE 有权
    超声波设备

    公开(公告)号：EP1591068A1

    公开(公告)日：2005-11-02

    申请号：EP04702080.5

    申请日：2004-01-14

    申请人： HITACHI MEDICAL CORPORATION

    发明人： MATSUMURA, Takeshi ,  TAMANO, Satoshi ,  MITAKE, Tsuyoshi ,  SIINA, Tsuyoshi

    IPC分类号： A61B8/08

    CPC分类号： A61B8/08 ,  A61B8/429 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/52071 ,  G01S15/8936 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10132 ,  G06T2207/20216 ,  G06T2207/30004

    摘要： An ultrasonographic device includes an ultrasonic wave transmitter/receiver section which transmits and receives ultrasonic waves to and from a test subject through a probe, a phasing addition circuit which controls the phase of the received ultrasonic wave and generates RF signal frame data, an RF signal frame data selection section which makes variable the frame interval of the RF signal frame data to be outputted, and an elastic image generating section which sets the optimum imaging range for each elastic frame data generated based on the RF signal frame data and generates elastic image.

    摘要翻译： 本发明提供一种超声波诊断装置，其特征在于，具备：超声波发送接收部，其通过探头与被检体进行超声波的收发;相位相加电路，其控制接收到的超声波的相位来生成RF信号帧数据; RF信号 帧数据选择部分，其使得要输出的RF信号帧数据的帧间隔可变;以及弹性图像生成部分，其针对基于RF信号帧数据生成的每个弹性帧数据设置最佳成像范围并生成弹性图像。