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1.发明授权Methods and systems for determining velocity of tissue using three dimensional ultrasound data 失效使用三维超声数据确定组织速度的方法和系统公开(公告)号：US06241675B1
公开(公告)日：2001-06-05
申请号：US09326900
申请日：1999-06-07
申请人： David W. Smith , Donald K. McAlister , Norman J. Bennett , Paul J. Hilts , John J. Stefanski , Steve Moore , Richard Holloway , John A. Schachte , Ronald E. Hileman , Olaf T. von Ramm , John T. Oxaal
发明人： David W. Smith , Donald K. McAlister , Norman J. Bennett , Paul J. Hilts , John J. Stefanski , Steve Moore , Richard Holloway , John A. Schachte , Ronald E. Hileman , Olaf T. von Ramm , John T. Oxaal
IPC分类号： A61B800
CPC分类号： G01S15/8993 , A61B8/06 , A61B8/13 , A61B8/461 , A61B8/466 , A61B8/467 , A61B8/483 , A61B8/488 , G01S7/52066 , G01S7/52084 , G01S7/52085 , G01S15/8979 , Y10S128/916
摘要： A volumetric ultrasound system is used to determine the velocity of tissue using 3D echo data. In particular, the velocity of tissue in a 3D volume is determined by steering ultrasound beams to the tissue in the 3D volume and forming 3D echo data from receive ultrasound beams formed from reflections of the steered ultrasound beams from the tissue in the 3D volume. The velocity of the tissue associated with the 3D echo data can be determined using velocity determination techniques. The velocity of the tissue can be displayed in real-time. For example, in one embodiment, a sub-volume of the 3D volume can be scanned and the determined velocity of the tissue displayed in about 50 milliseconds (ms).
摘要翻译： 体积超声系统用于使用3D回波数据确定组织的速度。 特别地，3D体积中组织的速度通过将超声波束导向3D体积中的组织并且从来自3D体积中的组织的转导超声波束的反射形成的接收超声波束形成3D回波数据来确定。 可以使用速度测定技术来确定与3D回波数据相关联的组织的速度。 组织的速度可以实时显示。 例如，在一个实施例中，可以扫描3D体积的子体积，并且以约50毫秒（ms）显示所确定的组织的速度。
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公开(公告)号：US5311095A
公开(公告)日：1994-05-10
申请号：US883006
申请日：1992-05-14
CPC分类号： B06B1/064
摘要： Disclosed is a ultrasonic transducer array comprising a ceramic connector having an array of connector pads, a mismatching layer of electrically conducting material connected to the upper surface of the ceramic connector, a piezoelectric transducer chip connected to the mismatching layer, separation means for dividing the piezoelectric chip into a plurality of transducer elements positioned in a two-dimensional array, wherein each one of the plurality of transducer elements is selectively connected to a corresponding one of the connector pads. Also disclosed in a two-dimensional ultrasound transducer array and transducer array for ultrasound imaging.
摘要翻译： 公开了一种超声波换能器阵列，其包括具有连接器焊盘阵列的陶瓷连接器，连接到陶瓷连接器的上表面的导电材料的不匹配层，连接到失配层的压电换能器芯片，用于将压电 芯片转换成定位在二维阵列中的多个换能器元件，其中多个换能器元件中的每一个选择性地连接到相应的一个连接器垫片。 还在二维超声换能器阵列和用于超声成像的换能器阵列中公开。
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公开(公告)号：US5109857A
公开(公告)日：1992-05-05
申请号：US664021
申请日：1991-03-04
摘要： Disclosed is an ultrasonic method of measuring the movement of a particle in a test region. The method comprises processing a modulated signal returned from the test region to detect a first range of feature data and then processing a modulated signal returned from the test region to detect a second range of feature data. The second range of feature data is then compared to the first range of feature data to determine the positional displacement between at least one feature in the second range of feature data and the closest adjacent feature in the first range of feature data. The positional displacement indicates the movement of a particle in the test region. Also disclosed is an apparatus for carrying out the foregoing method.
摘要翻译： 公开了一种测量测试区域中的颗粒运动的超声波方法。 该方法包括处理从测试区域返回的调制信号，以检测特征数据的第一范围，然后处理从测试区域返回的调制信号，以检测特征数据的第二范围。 然后将特征数据的第二范围与特征数据的第一范围进行比较，以确定特征数据的第二范围中的至少一个特征与第一特征数据范围中最接近的相邻特征之间的位置位移。 位置偏移表示粒子在测试区域中的运动。 还公开了一种用于执行上述方法的装置。
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4.发明授权
公开(公告)号：US4949310A
公开(公告)日：1990-08-14
申请号：US273601
申请日：1988-11-21
申请人： Stephen W. Smith , Olaf T. Von Ramm
发明人： Stephen W. Smith , Olaf T. Von Ramm
CPC分类号： G01S15/8925 , G01S7/5206
摘要： An electronic signal processing device which forms a compound image for any pulse-echo ultrasound imaging system using a two-dimensional array transducer. The processing device obtains the detected sum of a series of cross-shaped apertures within the transducer in order to form a spatial compound image with the output of each cross-shaped aperture consisting of the product of the output signals from the orthogonal arms of the cross.
摘要翻译： 一种电子信号处理装置，其使用二维阵列换能器形成用于任何脉冲回波超声成像系统的复合图像。 处理装置获得检测器内的一系列十字形孔的检测和，以便形成空间复合图像，每个十字形孔的输出由交叉的正交臂的输出信号的乘积组成 。
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公开(公告)号：US4694434A
公开(公告)日：1987-09-15
申请号：US619899
申请日：1984-06-12
申请人： Olaf T. von Ramm , Stephen W. Smith
发明人： Olaf T. von Ramm , Stephen W. Smith
CPC分类号： G01S7/52068 , G01S15/8915 , G01S15/8925
摘要： An acoustic pulse echo imaging system capable of producing an image of a three-dimensional object utilizing a two-dimensional display having perspective capabilities is described. In the system angular relationships of targets at all ranges are maintained for display. The system uses a two-dimensional transducer array of piezoelectric elements; the array is steered to assume transmit and receive orientations in both azimuth and elevation by producing (1) a directed transmit pulse and many similarly directed receive orientations or (2) a non-directed transmit pulse and many directed receive orientations. For each transmit pulse a parallel processing system produces several unique image points whose locations in the image correspond to the tangents of the angles of the receive orientations in the azimuth and elevation planes. The brightness of each image point is the weighted integral of the echo data received along each receive path. As an option, range discrimination capability is provided by means of a range dependent gain control, brightness shading as a function of range or a color display in which data originating from different ranges is displayed in different hues.
摘要翻译： 描述了能够利用具有透视能力的二维显示器产生三维物体的图像的声脉冲回波成像系统。 在系统中，保持所有范围内目标的角度关系以进行显示。 该系统使用压电元件的二维换能器阵列; 通过产生（1）定向发射脉冲和许多类似方向的接收取向或（2）非定向发射脉冲和许多定向接收取向，引导阵列以在方位和仰角中采取发射和接收取向。 对于每个发射脉冲，并行处理系统产生几个独特的图像点，其图像中的位置对应于方位角和仰角平面中的接收方向的角度的切线。 每个图像点的亮度是沿着每个接收路径接收的回波数据的加权积分。 作为选择，通过范围相关的增益控制，作为范围的函数的亮度阴影或以不同色调显示来自不同范围的数据的颜色显示来提供范围识别能力。
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6.发明授权Methods and systems for ultrasound scanning using spatially and spectrally separated transmit ultrasound beams 失效用于使用空间和频谱分离的发射超声波束进行超声扫描的方法和系统
公开(公告)号：US06159153A
公开(公告)日：2000-12-12
申请号：US224746
申请日：1998-12-31
CPC分类号： G01S7/52085 , A61B8/06 , G01S15/8915 , G01S7/52034 , G01S7/52092 , A61B8/08 , Y10S128/916
摘要： Multiple transmit ultrasound beams are generated by an ultrasound transducer at different frequencies in different directions in a region of a body during a maximum scan range interval. Transmitting multiple transmit ultrasound beams during the maximum scan range interval may provide an increase in the data acquisition rate compared to conventional ultrasound imaging systems. The transmit ultrasound beams are tracked using parallel receive processing and filtered to provide ultrasound scan lines for display. The respective directions of the transmit ultrasound beams are selected to define a separation angle therebetween which may reduce interference between the transmit ultrasound beams. The maximum scan range interval includes a time interval from a first start time to a second start time which is less than a total time for one of the transmit ultrasound beams to propagate to a maximum scan range in the region and a corresponding reflected transmit ultrasound beam to propagate from the maximum scan range to the ultrasound transducer. The ultrasound scan lines are displayed using a line-by-line frequency interlace pattern which may reduce the effect of frequency dependent attenuation in the region. The line-by-line frequency interlacing may also reduce a difference in speckle size due to the different frequencies.
摘要翻译： 在最大扫描范围间隔期间，多个发射超声波束在身体区域中以不同方向的不同频率的超声波换能器产生。 与传统的超声成像系统相比，在最大扫描范围间隔期间发送多个发射超声波束可以提供数据采集速率的增加。 使用并行接收处理跟踪发射超声波束，并对其进行滤波以提供用于显示的超声波扫描线。 选择发射超声波束的各个方向以限定它们之间的间隔角，这可以减小发射超声波束之间的干扰。 最大扫描范围间隔包括从第一开始时间到第二开始时间的时间间隔，其小于发射超声波束之一传播到该区域中的最大扫描范围的总时间，以及对应的反射发射超声波束 从最大扫描范围传播到超声换能器。 使用逐行频率交错模式显示超声扫描线，其可以减少该区域中频率相关衰减的影响。 逐行频率交错也可以减少由于不同频率导致的散斑尺寸差异。
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7.发明申请pMUT ARRAY FOR ULTRASONIC IMAGING, AND RELATED APPARATUSES, SYSTEMS, AND METHODS 审中-公开用于超声成像的pMUT阵列及相关装置，系统和方法公开(公告)号：US20150265245A1
公开(公告)日：2015-09-24
申请号：US14662000
申请日：2015-03-18
CPC分类号： G01S7/52017 , A61B8/0858 , A61B8/14 , A61B8/4494 , B06B1/0625 , B06B1/0648
摘要： Piezoelectric Micromachined Ultrasound Transducer (pMUT) arrays for ultrasonic imaging, and related apparatuses, systems, and methods are disclosed. In one embodiment, an ultrasonic imaging assembly comprises a substrate and a plurality of array elements arranged on the substrate in an array. Each array element comprises at least one pMUT disposed on the substrate each having a geometry configured to accept a predetermined fundamental mode vibration. The plurality of array elements are configured to transmit and receive at least one ultrasound beam based on the predetermined fundamental mode vibration. By sizing the pMUTs to correspond to a desired fundamental mode vibration, the pMUT array has improved sensitivity, and can be produced relatively cheaply compared to conventional dicing methods.
摘要翻译： 公开了用于超声成像的压电微加工超声波传感器（pMUT）阵列及相关装置，系统和方法。 在一个实施例中，超声成像组件包括衬底和阵列中布置在衬底上的多个阵列元件。 每个阵列元件包括设置在基板上的至少一个pMUT，每个pMUT具有被配置为接受预定基模振动的几何形状。 多个阵列元件被配置为基于预定的基本模式振动来发送和接收至少一个超声波束。 通过将pMUT调整为对应于所需的基模振动，pMUT阵列具有改进的灵敏度，与传统的切割方法相比可以相对便宜地制造。
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8.发明授权
公开(公告)号：US5522393A
公开(公告)日：1996-06-04
申请号：US248342
申请日：1994-05-24
CPC分类号： G01S15/8927 , A61B8/06 , G01F1/667 , G01S15/8915 , G01S15/8979 , G01S15/8984 , G01S15/8913 , G01S15/8993 , G01S7/52034
摘要： An ultrasonic diagnostic apparatus and method for real-time multi-dimensional blood flow imaging with enhanced sensitivity to lateral blood flow. The apparatus constitutes an improvement on the ultrasonic diagnostic apparatus of the type wherein an ultrasonic pulse beam is repeatedly transmitted into the subject under examination at a fixed pulse rate and the reflected echoes are picked up, amplified and displayed. The improvement comprises an ultrasonic transducer means comprising a phased array transducer which is electronically and/or mechanically divided into two or more independently controlled sub-apertures and adapted for transmitting ultrasonic pulse beams from one of the two or more sub-apertures and for receiving the reflected echoes with at least two of the two or more sub-apertures. Optionally, the apparatus and method further comprises signal processing means including quadrature detection circuitry comprising sampling means for sampling the echo signals or a downward shifted version of echo signals and Hilbert transform means for filtering the signals so as to obviate the need for mixers, low-pass filters (LPF) and quadrature reference frequencies utilized in conventional ultrasonic blood flow imaging.
摘要翻译： 一种用于实时多维血流成像的超声波诊断装置和方法，具有增强的对侧向血流的敏感性。 该装置构成对超声波诊断装置的改进，其中超声波脉冲束以固定的脉冲频率被重复地发送到检查对象，并且反射回波被拾取，放大和显示。 该改进包括超声换能器装置，其包括电子和/或机械地分成两个或更多个独立控制的子孔径的相控阵转换器，并且适于从两个或更多个子孔中的一个子孔传送超声波脉冲束， 反射回波与两个或更多个子孔中的至少两个。 可选地，所述装置和方法还包括信号处理装置，其包括正交检测电路，其包括用于对回波信号进行采样的采样装置或用于对信号进行滤波的回波信号的向下移位形式的希尔伯特变换装置，以避免需要混频器， 传统超声波血流成像中使用的通过滤波器（LPF）和正交参考频率。
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公开(公告)号：US4596145A
公开(公告)日：1986-06-24
申请号：US533956
申请日：1983-09-20
申请人： Stephen W. Smith , Olaf T. von Ramm
发明人： Stephen W. Smith , Olaf T. von Ramm
CPC分类号： G01S7/6263 , G01S7/52061 , G01S7/52071
摘要： An acoustic imaging system capable of producing C-mode images or orthoscopic projection images of a three-dimensional volume at significantly increased speeds of operation is described. For each acoustic pulse transmitted by a piezoelectric transducer array an electronic parallel processing system produces several unique image points whose locations in the image correspond to the Cartesian coordinates of the positions of receiving transducers. While range information is not directly displayed, range discrimination can be realized by means of an optional range dependent gain control or an optional color display in which range discrimination occurs through visual discrimination of differing hues.
摘要翻译： 描述了能够以显着增加的操作速度产生三维体积的C模式图像或无畸变投影图像的声学成像系统。 对于由压电换能器阵列传输的每个声脉冲，电子并行处理系统产生几个独特的图像点，其图像中的位置对应于接收换能器的位置的笛卡尔坐标。 虽然范围信息不是直接显示，但是可以通过可选的与范围相关的增益控制或可选的颜色显示来实现范围识别，其中通过不同色调的视觉辨别发生范围区分。
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公开(公告)号：US10605903B2
公开(公告)日：2020-03-31
申请号：US14662000
申请日：2015-03-18
摘要： Piezoelectric Micromachined Ultrasound Transducer (pMUT) arrays for ultrasonic imaging, and related apparatuses, systems, and methods are disclosed. In one embodiment, an ultrasonic imaging assembly comprises a substrate and a plurality of array elements arranged on the substrate in an array. Each array element comprises at least one pMUT disposed on the substrate each having a geometry configured to accept a predetermined fundamental mode vibration. The plurality of array elements are configured to transmit and receive at least one ultrasound beam based on the predetermined fundamental mode vibration. By sizing the pMUTs to correspond to a desired fundamental mode vibration, the pMUT array has improved sensitivity, and can be produced relatively cheaply compared to conventional dicing methods.
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