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公开(公告)号：US11154277B2
公开(公告)日：2021-10-26
申请号：US15798932
申请日：2017-10-31
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig
Abstract: For viscoelastic estimation with ultrasound, shear wave speed is measured for different locations in a region of interest. For each location, the shear wave speed is estimated without frequency band division. A distribution of shear wave speeds in the region of interest is matched a modeled distribution corresponding to a particular value of the viscoelastic property.
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公开(公告)号：US20190282212A1
公开(公告)日：2019-09-19
申请号：US15919903
申请日：2018-03-13
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Stirling Dodd
Abstract: For clutter reduction in ultrasound elasticity imaging, the contribution of clutter to different frequency components (e.g., the transmit fundamental and the propagation generated second harmonic) is different. As a result, a difference in displacements determined at the different frequency bands is used to reduce clutter contribution to displacements used for elasticity imaging.
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公开(公告)号：US20190125308A1
公开(公告)日：2019-05-02
申请号：US15798932
申请日：2017-10-31
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig
Abstract: For viscoelastic estimation with ultrasound, shear wave speed is measured for different locations in a region of interest. For each location, the shear wave speed is estimated without frequency band division. A distribution of shear wave speeds in the region of interest is matched a modeled distribution corresponding to a particular value of the viscoelastic property.
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公开(公告)号：US20240341730A1
公开(公告)日：2024-10-17
申请号：US18755781
申请日：2024-06-27
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Stirling Dodd
CPC classification number: A61B8/5276 , A61B8/461 , A61B8/485 , A61B8/5207
Abstract: For clutter reduction in ultrasound elasticity imaging, the contribution of clutter to different frequency components (e.g., the transmit fundamental and the propagation generated second harmonic) is different. As a result, a difference in displacements determined at the different frequency bands is used to reduce clutter contribution to displacements used for elasticity imaging.
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公开(公告)号：US12048593B2
公开(公告)日：2024-07-30
申请号：US17933170
申请日：2022-09-19
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Sterling Dodd
CPC classification number: A61B8/5276 , A61B8/461 , A61B8/485 , A61B8/5207
Abstract: For clutter reduction in ultrasound elasticity imaging, the contribution of clutter to different frequency components (e.g., the transmit fundamental and the propagation generated second harmonic) is different. As a result, a difference in displacements determined at the different frequency bands is used to reduce clutter contribution to displacements used for elasticity imaging.
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Patent Agency Ranking
公开(公告)号：US11464495B2
公开(公告)日：2022-10-11
申请号：US15919903
申请日：2018-03-13
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Stirling Dodd
Abstract: For clutter reduction in ultrasound elasticity imaging, the contribution of clutter to different frequency components (e.g., the transmit fundamental and the propagation generated second harmonic) is different. As a result, a difference in displacements determined at the different frequency bands is used to reduce clutter contribution to displacements used for elasticity imaging.
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公开(公告)号：US20180310918A1
公开(公告)日：2018-11-01
申请号：US15498877
申请日：2017-04-27
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Liexiang Fan , Stephen J. Rosenzweig
IPC: A61B8/08
Abstract: In shear wave imaging with an ultrasound scanner, multiple frames of shear wave data representing the same region of interest are acquired in response to a respective multiple ARFI transmissions. Instead of a fixed or same combination of focal locations for the ARFI transmissions, the focal locations of the ARFI transmissions are varied (e.g., randomly selected) between different frames of shear wave information. By combining the frames, a shear wave image may be generated with less missing data and/or shadowing effects.
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公开(公告)号：US20230012638A1
公开(公告)日：2023-01-19
申请号：US17933170
申请日：2022-09-19
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Sterling Dodd
Abstract: For clutter reduction in ultrasound elasticity imaging, the contribution of clutter to different frequency components (e.g., the transmit fundamental and the propagation generated second harmonic) is different. As a result, a difference in displacements determined at the different frequency bands is used to reduce clutter contribution to displacements used for elasticity imaging.
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公开(公告)号：US11311275B2
公开(公告)日：2022-04-26
申请号：US16367296
申请日：2019-03-28
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Paul Reynolds
Abstract: Asymmetry is provided for the pushing pulse in acoustic radiation force impulse (ARFI) imaging. MI is based on the negative pressure. By increasing the positive pressure more than the negative pressure, the magnitude of displacement may be increased without exceeding the MI limit. Similarly, negative voltages depole while positive do not, so using an ARFI or pushing pulse with asymmetric positive-to-negative peak pressures or voltages allows for generation of greater magnitude of displacement without harm to the transducer.
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公开(公告)号：US20200305842A1
公开(公告)日：2020-10-01
申请号：US16367296
申请日：2019-03-28
Applicant: Siemens Medical Solutions USA, Inc.
Inventor： Stephen J. Rosenzweig , Paul Reynolds
Abstract: Asymmetry is provided for the pushing pulse in acoustic radiation force impulse (ARFI) imaging. MI is based on the negative pressure. By increasing the positive pressure more than the negative pressure, the magnitude of displacement may be increased without exceeding the MI limit. Similarly, negative voltages depole while positive do not, so using an ARFI or pushing pulse with asymmetric positive-to-negative peak pressures or voltages allows for generation of greater magnitude of displacement without harm to the transducer.
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