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公开(公告)号：US07963919B2
公开(公告)日：2011-06-21
申请号：US11295794
申请日：2005-12-07
申请人： Timothy L. Proulx , Christopher M. Daft , J. Paul Mohr , Walter T. Wilser , Charles E. Bradley , Paul A. Wagner , Igal Ladabaum
发明人： Timothy L. Proulx , Christopher M. Daft , J. Paul Mohr , Walter T. Wilser , Charles E. Bradley , Paul A. Wagner , Igal Ladabaum
IPC分类号： A61B8/00
CPC分类号： G01S7/52095 , A61B8/483 , G01S15/892 , G01S15/8925 , G01S15/8927 , G01S15/8959 , G01S15/8995 , G01S15/8997
摘要： Synthetic transmit aperture is provided for three-dimensional ultrasound imaging. A transducer may have separate transmit and receive elements. Broad beams are transmitted, allowing fewer transmit elements and/or more rapid scanning. A multidimensional receive array generates data in response to sequential transmissions, such as transmissions from different angles. The data is combined to increase resolution. A transducer array with offset transmit elements for forming a transmit line source may be used.
摘要翻译： 为三维超声成像提供合成发射孔径。 传感器可以具有单独的发射和接收元件。 传输宽波束，允许更少的发射元件和/或更快速的扫描。 多维接收阵列响应于顺序传输产生数据，例如来自不同角度的传输。 数据被组合以提高分辨率。 可以使用具有用于形成发射线源的偏移发射元件的换能器阵列。
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公开(公告)号：US20090079299A1
公开(公告)日：2009-03-26
申请号：US11904454
申请日：2007-09-26
IPC分类号： H01L41/04
CPC分类号： G01S15/8927 , G01S15/8925 , G01S15/8959 , G01S15/8995 , G01S15/8997
摘要： An ultrasound imaging system may use a capacitive membrane or electrostrictive ultrasound transducer to realize isotropic volumetric imaging with bias-line element selection and a variety of aperture synthesis techniques. Two dimensional beam formation may be performed by using a beamformer to focus along one dimension, and then perform a second round of “off-line” or “retrospective” beam formation along the other direction.
摘要翻译： 超声成像系统可以使用电容膜或电致伸缩超声换能器来实现具有偏置线元件选择和各种孔合成技术的各向同性体积成像。 可以通过使用波束形成器沿着一个维度聚焦来执行二维波束形成，然后沿着另一个方向执行第二轮“离线”或“回溯”波束形成。
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公开(公告)号：US08641628B2
公开(公告)日：2014-02-04
申请号：US11904454
申请日：2007-09-26
IPC分类号： A61B8/00
CPC分类号： G01S15/8927 , G01S15/8925 , G01S15/8959 , G01S15/8995 , G01S15/8997
摘要： An ultrasound imaging system may use a capacitive membrane or electrostrictive ultrasound transducer to realize isotropic volumetric imaging with bias-line element selection and a variety of aperture synthesis techniques. Two dimensional beam formation may be performed by using a beamformer to focus along one dimension, and then perform a second round of “off-line” or “retrospective” beam formation along the other direction.
摘要翻译： 超声成像系统可以使用电容膜或电致伸缩超声换能器来实现具有偏置线元件选择和各种孔合成技术的各向同性体积成像。 可以通过使用波束形成器沿着一个维度聚焦来执行二维波束形成，然后沿着另一个方向执行第二轮“离线”或“回溯”波束形成。
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公开(公告)号：US07713199B2
公开(公告)日：2010-05-11
申请号：US11192857
申请日：2005-07-28
IPC分类号： A61B8/00
CPC分类号： B06B1/064 , G01S7/52038 , G01S15/8952
摘要： A medical diagnostic ultrasound transducer system has at least a first and a second set of transducer layers of an element. Each set has one or more transducer layers with independent electrical access. A transmit event through a first set of transducer layers with broadband electrical signals generates acoustic signals containing at least two different frequency bands, and a receive event through a second and different set of transducer layers receives multiple tissue harmonic signals to generate a wide bandwidth response. Fundamental signals can be reduced with a pulse inversion technique through a second transmit event of inverted pulses, a second receive event and superposition of signals from the two receive events.
摘要翻译： 医疗诊断超声换能器系统具有元件的至少第一和第二组换能器层。 每组具有一个或多个具有独立电接入的换能器层。 通过具有宽带电信号的第一组换能器层的发射事件产生包含至少两个不同频带的声学信号，并且通过第二和不同组的换能器层的接收事件接收多个组织谐波信号以产生宽带宽响应。 可以通过脉冲反转技术通过反向脉冲的第二发送事件，第二接收事件和来自两个接收事件的信号的叠加来减少基本信号。
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公开(公告)号：US06679846B2
公开(公告)日：2004-01-20
申请号：US10081978
申请日：2002-02-21
申请人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
发明人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
IPC分类号： B60R2500
CPC分类号： G01S15/8963 , A61B8/00 , G01S7/52039 , G01S7/52046 , G01S7/52085 , G01S7/52095 , G01S15/8927 , G01S15/8959 , G01S15/8977
摘要： A medical diagnostic ultrasonic imaging system acquires receive beams from spatially distinct transmit beams. The receive beams alternate in type between at least first and second types across the region being imaged. The first and second types of receive beams differ in at least one scan parameter other than transmit and receive line geometry, and can for example differ in transmit phase, transmit or receive aperture, system frequency, transmit focus, complex phase angle, transmit code or transmit gain. Receive beams associated with spatially distinct ones of the transmit beams (including at least one beam of the first type and at least one beam of the second type) are then combined. In this way, many two-pulse techniques, including, for example, phase inversion techniques, synthetic aperture techniques, synthetic frequency techniques, and synthetic focus techniques, can be used while substantially reducing the frame rate penalty normally associated with such techniques.
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公开(公告)号：US08241216B2
公开(公告)日：2012-08-14
申请号：US12477783
申请日：2009-06-03
IPC分类号： A61B8/00
CPC分类号： G01S7/52046 , G01S7/5202 , G01S7/5209 , G01S7/52095 , G10K11/346
摘要： Retrospective dynamic transmit beamformation is provided in medical ultrasound imaging. Using parallel receive beamformation, sets of data representing locations in at least a common field of view are obtained, each set in response to a transmit with a spatially distinct phase front. The common field of view receive data are time aligned and amplitude weighted for retrospective transmit focusing and retrospective transmit apodization, respectively. A time offset, such as of a cycle or more in some cases, is applied to the receive data for retrospective transmit focusing. The offset is selected to emulate shifting the transmit delay profile to be tangentially intersecting with the dynamic receive delay profile for each location which is the desired transmit delay profile. A weight is applied to the receive data for retrospective transmit apodization. The weight is selected based on the desired transmit apodization profile. The offset and weighted data representing a same location from different transmit events is coherently combined. The number of sets of data offset, weighted and combined may vary as a function of depth for dynamic transmit beamformation.
摘要翻译： 在医学超声成像中提供回溯动态发射波束形成。 使用并行接收波束形成，获得在至少公共视场中表示位置的数据集合，每个集合响应于具有空间上不同相位前沿的传输。 对于追溯发射聚焦和追溯发射变迹，共同视野接收数据分别对时间对齐和幅度加权。 在一些情况下，例如周期或更多的时间偏移被应用于用于追溯发射聚焦的接收数据。 选择该偏移以模拟将发射延迟分布移动为与期望的发射延迟分布的每个位置的动态接收延迟分布切线相交。 将加权应用于接收数据用于追溯发射变迹。 基于所需的发射变迹轮廓来选择权重。 表示来自不同发送事件的相同位置的偏移和加权数据被一致地组合。 数据偏移量，加权和组合的数量可以随动态传输波束形成的深度而变化。
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公开(公告)号：US06517489B1
公开(公告)日：2003-02-11
申请号：US09839709
申请日：2001-04-19
申请人： Patrick J. Phillips , Kutay F. Ustuner , Charles E. Bradley , Lewis J. Thomas , David J. Napolitano
发明人： Patrick J. Phillips , Kutay F. Ustuner , Charles E. Bradley , Lewis J. Thomas , David J. Napolitano
IPC分类号： A61B814
CPC分类号： G01S7/52026 , G01S7/52049 , G01S15/8909 , G01S15/8959
摘要： A medical ultrasonic imaging method uses transmitted plane waves, or transmitted wavefronts that are substantially planar, to improve contrast agent imaging by generating peak pressures that are more uniform over depth. Depending on the type of contrast agent, the returned frequencies of interest, and the desired strength of the non-linear response, multiple wavefronts can be generated at substantially the same time to increase peak pressures.
摘要翻译： 医疗超声成像方法使用透射平面波或基本上平面的透射波前，通过产生在深度上更均匀的峰值压力来改善造影剂成像。 根据造影剂的类型，返回的感兴趣的频率和非线性响应的期望强度，可以在基本相同的时间产生多个波前以增加峰值压力。
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8.发明授权公开(公告)号：US06436046B1
公开(公告)日：2002-08-20
申请号：US09698995
申请日：2000-10-27
申请人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
发明人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
IPC分类号： A61B800
CPC分类号： G01S15/8963 , A61B8/00 , G01S7/52039 , G01S7/52046 , G01S7/52085 , G01S7/52095 , G01S15/8927 , G01S15/8959 , G01S15/8977
摘要： A medical diagnostic ultrasonic imaging system acquires receive beams from spatially distinct transmit beams. The receive beams alternate in type between at least first and second types across the region being imaged. The first and second types of receive beams differ in at least one scan parameter other than transmit and receive line geometry, and can for example differ in transmit phase, transmit or receive aperture, system frequency, transmit focus, complex phase angle, transmit code or transmit gain. Receive beams associated with spatially distinct ones of the transmit beams (including at least one beam of the first type and at least one beam of the second type) are then combined. In this way, many two-pulse techniques, including, for example, phase inversion techniques, synthetic aperture techniques, synthetic frequency techniques, and synthetic focus techniques, can be used while substantially reducing the frame rate penalty normally associated with such techniques.
摘要翻译： 医疗诊断超声成像系统从空间上不同的发射波束获取接收波束。 接收波束在被成像的区域之间在至少第一和第二类型之间交替类型。 第一和第二类型的接收波束在除发射和接收线几何之外的至少一个扫描参数不同，并且例如可以在发射相位，发射或接收孔径，系统频率，发射焦点，复相位角，发射码或 传输增益。 然后组合与空间上不同的发射波束（包括第一类型的至少一个波束和第二类型的至少一个波束）相关联的接收波束。 以这种方式，可以使用许多双脉冲技术，包括例如相位反转技术，合成孔径技术，合成频率技术和合成焦点技术，同时显着降低通常与这种技术相关联的帧速率损失。
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公开(公告)号：US20090306512A1
公开(公告)日：2009-12-10
申请号：US12477783
申请日：2009-06-03
IPC分类号： A61B8/14
CPC分类号： G01S7/52046 , G01S7/5202 , G01S7/5209 , G01S7/52095 , G10K11/346
摘要： Retrospective dynamic transmit beamformation is provided in medical ultrasound imaging. Using parallel receive beamformation, sets of data representing locations in at least a common field of view are obtained, each set in response to a transmit with a spatially distinct phase front. The common field of view receive data are time aligned and amplitude weighted for retrospective transmit focusing and retrospective transmit apodization, respectively. A time offset, such as of a cycle or more in some cases, is applied to the receive data for retrospective transmit focusing. The offset is selected to emulate shifting the transmit delay profile to be tangentially intersecting with the dynamic receive delay profile for each location which is the desired transmit delay profile. A weight is applied to the receive data for retrospective transmit apodization. The weight is selected based on the desired transmit apodization profile. The offset and weighted data representing a same location from different transmit events is coherently combined. The number of sets of data offset, weighted and combined may vary as a function of depth for dynamic transmit beamformation.
摘要翻译： 在医学超声成像中提供回溯动态发射波束形成。 使用并行接收波束形成，获得在至少公共视场中表示位置的数据集合，每个集合响应于具有空间上不同相位前沿的传输。 对于追溯发射聚焦和追溯发射变迹，共同视野接收数据分别对时间对齐和幅度加权。 在一些情况下，例如周期或更多的时间偏移被应用于用于追溯发射聚焦的接收数据。 选择该偏移以模拟将发射延迟分布移动为与期望的发射延迟分布的每个位置的动态接收延迟分布切线相交。 将加权应用于接收数据用于追溯发射变迹。 基于所需的发射变迹轮廓来选择权重。 表示来自不同发送事件的相同位置的偏移和加权数据被一致地组合。 数据偏移量，加权和组合的数量可以随动态传输波束形成的深度而变化。
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公开(公告)号：US07540842B2
公开(公告)日：2009-06-02
申请号：US10696421
申请日：2003-10-28
申请人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
发明人： David J. Napolitano , Christopher R. Cole , Gregory L. Holley , John A. Hossack , Charles E. Bradley , Patrick Phillips
IPC分类号： A61B8/00
CPC分类号： G01S15/8963 , A61B8/00 , G01S7/52039 , G01S7/52046 , G01S7/52085 , G01S7/52095 , G01S15/8927 , G01S15/8959 , G01S15/8977
摘要： A medical diagnostic ultrasonic imaging system acquires receive beams from spatially distinct transmit beams. The receive beams alternate in type between at least first and second types across the region being imaged. The first and second types of receive beams differ in at least one scan parameter other than transmit and receive line geometry, and can for example differ in transmit phase, transmit or receive aperture, system frequency, transmit focus, complex phase angle, transmit code or transmit gain. Receive beams associated with spatially distinct ones of the transmit beams (including at least one beam of the first type and at least one beam of the second type) are then combined. In this way, many two-pulse techniques, including, for example, phase inversion techniques, synthetic aperture techniques, synthetic frequency techniques, and synthetic focus techniques, can be used while substantially reducing the frame rate penalty normally associated with such techniques.
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