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14 条记录 (耗时 0.019 秒)

    Ultrasonic diagnostic apparatus
    2.
    发明公开
    Ultrasonic diagnostic apparatus 有权
    超声波诊断设备

    公开(公告)号：EP2392263A1

    公开(公告)日：2011-12-07

    申请号：EP11250577.1

    申请日：2011-06-02

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Medical Systems Corporation

    发明人： Sato, Takeshi ,  Shibata, Chihiro

    IPC分类号： A61B8/06 ,  G01S15/89

    CPC分类号： G01S15/8981 ,  A61B8/06 ,  A61B8/13 ,  G01S7/52085

    摘要： In one embodiment, a scanning unit (2, 3, 4) repeatedly scans an internal region of an object with an ultrasonic wave at a predetermined frame rate via an ultrasonic probe. An image generation unit (6) extracts a blood flow signal based on a Doppler effect from a reflection signal and repeatedly generates a blood flow image representing a spatial distribution associated with power of the blood flow signal at the frame rate. A power average value associated with a frame or local region is calculated for the blood flow image. The blood flow image is corrected. In the correcting, a gain on the power values in the frame or local region in which the power average value exceeds the threshold are substantially reduced, and power values in the frame or local region in which the power average value is not more than the threshold are maintained.

    摘要翻译： 在一个实施例中，扫描单元（2,3,4）经由超声波探头以预定帧速率用超声波重复扫描物体的内部区域。 图像生成部（6）根据来自反射信号的多普勒效应来提取血流信号，以该帧频重复生成表示与血流信号的功率对应的空间分布的血流图像。 针对血流图像计算与帧或局部区域相关联的功率平均值。 血流图像被校正。 在校正中，功率平均值超过阈值的帧或局部区域中的功率值的增益显着减小，并且功率平均值不超过阈值的帧或局部区域中的功率值 保持。

    Image processing apparatus and computer program product
    4.
    发明公开
    Image processing apparatus and computer program product 有权
    Bildverarbeitungsvorrichtung和Computerprogrammprodukt

    公开(公告)号：EP2124197A1

    公开(公告)日：2009-11-25

    申请号：EP09006615.0

    申请日：2009-05-15

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Medical Systems Corporation

    发明人： Sato, Takeshi

    IPC分类号： G06T17/40 ,  A61B8/06

    CPC分类号： A61B8/06 ,  A61B8/13 ,  A61B8/483 ,  G06T15/08 ,  G06T19/00 ,  G06T2210/24 ,  G06T2210/41

    摘要： A tissue-image creating unit (14a) creates a tissue image including depth values by volume rendering from three-dimensional tissue data stored in a three-dimensional data storage unit (13). A blood-flow data converting unit (14b) scatters a blood flow in three-dimensional blood-flow data stored in the three-dimensional data storage unit (13) into particles, and converts the three-dimensional blood-flow data into three-dimensional particle data. A blood-flow image creating unit (14c) creates a blood-flow image including depth values from the three-dimensional particle data. A composite-image creating unit (14d) then creates a composite image by coordinating the order of rendering particles and tissue based on the depth values of respective pixels included in the tissue image and the depth values of respective particles included in the blood-flow image. A display control unit (16) then controls display of the composite image so as to be displayed in order onto a monitor included in an output unit (12).

    摘要翻译： 组织图像生成单元（14a）通过从存储在三维数据存储单元（13）中的三维组织数据的体积绘制产生包括深度值的组织图像。 血流数据转换单元（14b）将存储在三维数据存储单元（13）中的三维血流数据中的血流散布成粒子，并将三维血流数据转换成三维血流数据， 二维粒子数据。 血流图像生成部（14c）从三维粒子数据生成包含深度值的血流图像。 然后，合成图像生成部（14d），通过基于组织图像中包含的各像素的深度值和包含在血流图像中的各个粒子的深度值来协调渲染粒子和组织的顺序来生成合成图像 。 显示控制单元（16）然后控制合成图像的显示，以便按顺序显示在包括在输出单元（12）中的监视器上。

    Ultrasonic diagnostic Doppler equipment and method
    5.
    发明公开
    Ultrasonic diagnostic Doppler equipment and method 有权
    诊断Doppler-Ultraschallgerätund -verfahren

    公开(公告)号：EP1548462A1

    公开(公告)日：2005-06-29

    申请号：EP04257810.4

    申请日：2004-12-15

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Medical Systems Corporation

    发明人： Sato, Takeshi

    IPC分类号： G01S15/89 ,  A61B8/06 ,  A61B8/08

    CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  A61B8/14 ,  A61B8/463 ,  A61B8/488 ,  G01S7/52085 ,  G01S7/523 ,  G01S15/8981 ,  G01S15/8988

    摘要： An ultrasonic Doppler diagnostic equipment according to the present invention is characterized by including a Doppler signal detection device which executes a filtering process for a plurality of reception signals obtained in time series at unequal intervals from a predetermined position within a patient by a transmission/reception device, thereby to detect Doppler signals based on a mobile object; a velocity calculation device which selects Doppler signals obtained at a predetermined time interval, from among the plurality of Doppler signals obtained at the unequal intervals by the Doppler signal detection device, and which calculates a velocity of the mobile object on the basis of the selected Doppler signals; and an image data generation device which generates velocity image data on the basis of the velocity of the mobile object as calculated by the velocity calculation device.

    摘要翻译： 根据本发明的超声多普勒诊断设备的特征在于包括：多普勒信号检测装置，其通过发送/接收装置从患者内的预定位置以不等间隔以时间序列获得的多个接收信号执行滤波处理 从而基于移动对象来检测多普勒信号; 速度计算装置，其从多普勒信号检测装置以不等间隔获得的多个多普勒信号中选择以预定的时间间隔获得的多普勒信号，并且根据所选择的多普勒计算移动对象的速度 信号; 以及图像数据生成装置，其基于由速度计算装置计算出的移动体的速度生成速度图像数据。

    Ultrasonic apparatus and ultrasonic diagnostic method
    7.
    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。

    Ultrasonic diagnosis apparatus, image processing apparatus, and image processing method
    8.
    发明公开
    Ultrasonic diagnosis apparatus, image processing apparatus, and image processing method 审中-公开
    Ultraschalldiagnosevorrichtung，Bildverarbeitungsvorrichtung und Bildverarbeitungsverfahren

    公开(公告)号：EP2905633A1

    公开(公告)日：2015-08-12

    申请号：EP15154355.0

    申请日：2015-02-09

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Medical Systems Corporation

    发明人： Honjo, Yasunori ,  Abe, Yasuhiko ,  Kawagishi, Tetsuya ,  Hirama, Makoto ,  Sato, Takeshi

    IPC分类号： G01S7/52 ,  G01S15/89 ,  A61B8/08

    CPC分类号： A61B8/14 ,  A61B8/0858 ,  A61B8/4488 ,  A61B8/5207 ,  A61B8/5269 ,  A61B8/54 ,  G01S7/52038 ,  G01S7/52046 ,  G01S15/8927 ,  G01S15/8979 ,  G01S15/8993 ,  G01S15/8995

    摘要： An ultrasonic diagnosis apparatus according to an embodiment includes a controller (18), a processor (12), and an image generator (15). The controller (18) selects at least one transducer element in a reception aperture formed of a transducer element group arranged in a predetermined direction, based on at least one of a deflection angle of an ultrasonic wave, an angle between the predetermined direction and a direction indicating a boundary of a structure, and an angle between a direction perpendicular to a normal direction where the predetermined direction intersects with a center of the transducer element group and the direction indicating the boundary. The processor (12) performs processing such that a signal intensity of a reception signal generated in the at least one transducer element is reduced, to output the reception signal of the reception aperture. The image generator (15) generates ultrasonic image data, based on the reception signal.

    摘要翻译： 根据实施例的超声波诊断装置包括控制器（18），处理器（12）和图像发生器（15）。 控制器（18）基于超声波的偏转角，预定方向和方向之间的角度中的至少一个，选择由沿预定方向布置的换能器元件组形成的接收孔中的至少一个换能器元件 表示结构的边界，以及与规定方向与换能器元件组的中心相交的法线方向的垂直方向与表示边界的方向之间的角度。 处理器（12）执行处理，使得在至少一个换能器元件中产生的接收信号的信号强度减小，以输出接收孔径的接收信号。 图像生成器（15）基于接收信号生成超声波图像数据。