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    • 3. 发明授权
    • Phased array acoustic systems with intra-group processors
    • 具有组内处理器的相控阵声学系统
    • US6126602A
    • 2000-10-03
    • US398353
    • 1999-09-17
    • Bernard J. SavordKarl E. Thiele
    • Bernard J. SavordKarl E. Thiele
    • A61B8/00A61B8/08G01S7/52G01S7/521G01S15/89G10K11/34
    • G01S15/8925A61B8/4494G01S15/8927G01S7/5202G01S7/52046G01S7/52079G01S7/5208G10K11/346A61B8/08A61B8/483G01S15/899G01S7/52023
    • The disclosed ultrasound imaging apparatus and method use a transducer array with a very large number of transducer elements or a transducer array with many more transducer elements than beamformer channels. The imaging apparatus includes a transmit array including a multiplicity of transducer elements allocated into several transmit sub-arrays, and a receive array including a multiplicity of transducer elements allocated into several receive sub-arrays. The apparatus also includes several intra-group transmit processors, connected to the transmit sub-arrays, constructed and arranged to generate a transmit acoustic beam directed into a region of interest, and several intra-group receive processors connected to the receive sub-arrays. Each intra-group receive processor is arranged to receive, from the transducer elements of the connected sub-array, transducer signals in response to echoes from the transmit acoustic beam. Each intra-group receive processor includes delay and summing elements constructed to delay and sum the received transducer signals. The apparatus also includes a receive beamformer including several processing channels connected to the intra-group receive processors, wherein each processing channel includes a beamformer delay constructed and arranged to synthesize receive beams from the echos by delaying signals received from the intra-group receive processor, and a beamformer summer (a summing junction) constructed and arranged to receive and sum signals from the processing channels. An image generator is constructed and arranged to form an image of the region of interest based on signals received from the receive beamformer. The apparatus is practical in size, cost and complexity and is sufficiently fast to provide two-dimensional or three-dimensional images of moving body organs.
    • 所公开的超声成像设备和方法使用具有非常大量的换能器元件的换能器阵列或具有比波束形成器通道更多的换能器元件的换能器阵列。 成像装置包括发射阵列,其包括被分配到多个发射子阵列中的多个换能器元件,以及包括被分配到多个接收子阵列中的多个换能器元件的接收阵列。 该装置还包括连接到发射子阵列的几个组内发射处理器,其被构造和布置成生成被引导到感兴趣区域中的发射声波束以及连接到接收子阵列的几个组内接收处理器。 每个组内接收处理器被布置成响应于来自发射声束的回波从接收的子阵列的换能器元件接收换能器信号。 每个组内接收处理器包括构造成对所接收的换能器信号进行延迟和求和的延迟和求和元件。 该装置还包括接收波束形成器,其包括连接到组内接收处理器的若干处理通道,其中每个处理通道包括波束形成器延迟,波束形成器延迟被构造和布置成通过延迟从组内接收处理器接收的信号来合成来自回波的接收波束, 和一个波束形成器夏天(一个求和点)构造和布置成从处理通道接收和求和信号。 一个图像发生器被构造和布置成基于从接收波束形成器接收的信号形成感兴趣区域的图像。 该装置的尺寸,成本和复杂性是实用的,并且足够快以提供移动身体器官的二维或三维图像。
    • 6. 发明授权
    • Ultrasonic imaging aberration correction using harmonic and non-harmonic signals
    • 使用谐波和非谐波信号的超声成像像差校正
    • US06682487B1
    • 2004-01-27
    • US10241291
    • 2002-09-10
    • Bernard J. Savord
    • Bernard J. Savord
    • A61B438446
    • G01S15/8927G01S7/52038G01S7/52049G01S15/8952
    • An ultrasonic diagnostic imaging system and method are provided in which aberration corrections are computed by comparing harmonic and non-harmonic images to derive aberration correction estimates. In a preferred embodiment the harmonic image provides a reference image against which aberrations in the non-harmonic image are compared. A preferred acquisition technique is to transmit at a frequency f and receive at a frequency n*f to acquire the harmonic image and to transmit at a frequency n*f and receive at a frequency n*f to acquire the non-harmonic image. In a preferred embodiment the aberration correction estimates are produced by back-propagating the image data to find the aperture correction data for the two images.
    • 提供了一种超声波诊断成像系统和方法,其中通过比较谐波和非谐波图像来计算像差校正以导出像差校正估计。 在优选实施例中,谐波图像提供与非谐波图像中的像差相比较的参考图像。 优选的采集技术是以频率f进行发送,并以频率n * f进行接收以获取谐波图像并以频率n * f进行发送,并以频率n * f接收以获取非谐波图像。 在优选实施例中,通过反向传播图像数据以找到两个图像的孔径校正数据来产生像差校正估计。
    • 9. 发明授权
    • Method and apparatus for 1D array ultrasound probe
    • 1D阵列超声探头的方法和装置
    • US06705995B1
    • 2004-03-16
    • US10264900
    • 2002-10-04
    • McKee Dunn PolandBernard J. SavordMichael P. Anthony
    • McKee Dunn PolandBernard J. SavordMichael P. Anthony
    • A61B800
    • G01S15/8927G01S7/52025G01S15/8913G01S15/8918G01S15/892G10K11/346
    • A phased array ultrasound scanning apparatus includes a one-dimensional (1-D) array of ultrasound transducer elements having transmit and receive elements. The 1-D array is responsive to a transmitter configured to energize the transmit elements for generating a transmit acoustic beam directed into a region of interest. A receive beamformer, operatively connected to the 1-D array, synthesizes receive beams, in response to echoes of the transmit acoustic beam received from the region of interest. The receive beamformer includes analog random access memory (ARAM) delay elements configured to delay signals received from the receive elements and provide the delayed signals on an output of the receive beamformer as a beamformed RF output. The beamformed RF output is suitable for use in forming an image of the region of interest.
    • 相控阵列超声波扫描装置包括具有发射和接收元件的超声换能器元件的一维(1-D)阵列。 1-D阵列响应于被配置为激励发射元件的发射器,用于产生指向感兴趣区域的发射声波束。 响应于从感兴趣区域接收的发射声波的回波,可操作地连接到1-D阵列的接收波束形成器合成接收波束。 接收波束形成器包括被配置为延迟从接收元件接收的信号的模拟随机存取存储器(ARAM)延迟元件,并且在接收波束形成器的输出上提供延迟的信号作为波束形成的RF输出。 波束形成的RF输出适用于形成感兴趣区域的图像。