Patents by Inventor Kutay F. Ustuner

Kutay F. Ustuner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10682122
    Abstract: An image-based user interface is used for controlling medical imaging. A variety of images of a same region but associated with different settings are displayed to the user. The user selects the desired image. The medical imager is then configured with the settings from the selected image for imaging a patient.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 16, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Mikyoung Park, Rushabh Modi, Kutay F. Ustuner
  • Publication number: 20190269379
    Abstract: For quantification of blood flow by an ultrasound system, B-mode images generated with a multi-transmit, coherent image formation produce swirling or other speckle patterns in the blood regions. These patterns, as represented in specially formed B-mode images, are tracked over time to indicate two or three-dimensional velocity vectors of the blood at a B-mode resolution. Various visualizations may be provided at the same resolution, including the velocity flow field, flow direction, vorticity, vortex size, vortex shape, and/or divergence.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 5, 2019
    Inventors: Ankur Kapoor, Tommaso Mansi, Kutay F. Ustuner, Helene C. Houle, Ismayil M. Guracar, Rickard C. Loftman
  • Publication number: 20180284251
    Abstract: For estimating attenuation, diffraction effects are corrected by transmitting at different frequencies using apertures sized to match the on-axis intensity profile and/or resolution cell size between the transmissions where there is no attenuation. Attenuation causes a variance in return. A rate of change is estimated from a ratio of the magnitude of the signals or displacements responsive to the transmissions. The attenuation is calculated from the rate of change over depth of the ratio.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 4, 2018
    Inventors: Yassin Labyed, Kutay F. Ustuner
  • Patent number: 10064602
    Abstract: Acoustic reciprocity between transmit and receive is used for coherence ultrasound imaging. Rather than finding coherence across the receive channels, coherence is found across transmit channels. Broad transmit beams are used for different transmit elements or apertures to create beamformed frames of data. The coherence between these transmit channel frames of beamformed data is calculated and used for imaging.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: September 4, 2018
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Kutay F. Ustuner, Nicholas Bottenus
  • Publication number: 20170156698
    Abstract: An image-based user interface is used for controlling medical imaging. A variety of images of a same region but associated with different settings are displayed to the user. The user selects the desired image. The medical imager is then configured with the settings from the selected image for imaging a patient.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 8, 2017
    Inventors: Mikyoung Park, Rushabh Modi, Kutay F. Ustuner
  • Patent number: 9465101
    Abstract: Aberration estimation uses cross correlation of receive-focused transmit element data. A set of sequentially fired broad transmit beams insonify an object from different steering angles. Each transmit beam emanates from an actual or a virtual transmit element. For every firing, a receive beamformer forms a transmit element image of the insonified region by focusing the received signals. An estimator estimates aberration by cross correlating or comparing the transmit element images. Where a virtual transmit element is used, the virtual transmit element images are back propagated to an actual transmit element position before aberration estimation. The estimations are used to form corrected transmit element images which are then summed pre-detection to form a high-resolution synthetic transmit aperture. Alternatively, the estimations are used to improve conventional focused-transmit imaging.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: October 11, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Kutay F. Ustuner, Lewis J. Thomas, D-L Donald Liu
  • Patent number: 9414805
    Abstract: Spatially distinct Spectral Doppler information is displayed. A spectrum is determined for each of a plurality of spatial locations, such as associated with different receive beams. Given a plurality of spectra at different spatial locations, an image may be generated as a function of the spectra. For example, a two-dimensional image has display values for different pixels or locations derived from one or more characteristics of the spectra, such as the maximum velocity with energy above a threshold for each location. As another example, the spectrum from the set of spectra with the highest maximum velocity is selected for generating a spectral strip display.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: August 16, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Kutay F. Ustuner, Paul D. Freiburger, Seshadri Srinivasan, Steve Henderson
  • Publication number: 20150342567
    Abstract: Acoustic reciprocity between transmit and receive is used for coherence ultrasound imaging. Rather than finding coherence across the receive channels, coherence is found across transmit channels. Broad transmit beams are used for different transmit elements or apertures to create beamformed frames of data. The coherence between these transmit channel frames of beamformed data is calculated and used for imaging.
    Type: Application
    Filed: January 13, 2015
    Publication date: December 3, 2015
    Inventors: Kutay F. Ustuner, Nicholas Bottenus
  • Patent number: 9081097
    Abstract: Steered spatial compounding is provided in ultrasound imaging. Component frames of data associated with different spatial response are processed to identify different sources of signals. Matched filtering and/or spatial variance with erosion distinguish between sources of signals, such as distinguishing between (1) anatomical structure and (2) soft tissue and/or noise. The locations in the patient are segmented by the source of signals and different compounding is applied for the different sources.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: July 14, 2015
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bimba Rao, Ismayil M. Guracar, Kutay F. Ustuner
  • Patent number: 8946972
    Abstract: A multi-layer transducer operates with only one system channel per element. Passive switching connects the layers differently for transmit than for receive operation, such as connecting two layers in parallel for transmit and in series for receive. Any passive switching may be used, such as current and voltage limiting circuits. Tuning may be passively switched. Different tuning circuits are passively switched as a function of voltage level between transmit and receive operations.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: February 3, 2015
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: John Douglas Marshall, Jian-Hua Mo, Kutay F. Ustuner
  • Patent number: 8690781
    Abstract: 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 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 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.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 8, 2014
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Rickard C. Loftman, Kutay F. Ustuner, Charles E. Bradley
  • Publication number: 20130294665
    Abstract: Steered spatial compounding is provided in ultrasound imaging. Component frames of data associated with different spatial response are processed to identify different sources of signals. Matched filtering and/or spatial variance with erosion distinguish between sources of signals, such as distinguishing between (1) anatomical structure and (2) soft tissue and/or noise. The locations in the patient are segmented by the source of signals and different compounding is applied for the different sources.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Bimba Rao, Ismayil M. Guracar, Kutay F. Ustuner
  • Patent number: 8394027
    Abstract: A volumetric method for 2-D flow imaging is provided in medical diagnostic ultrasound. Flow data for a volume is acquired. For more rapid acquisition, broad beam transmission and reception along many scan lines distributed in the volume is used. The volumetric flow data is filtered, such as by calculating statistical information, to generate a planar/2-D flow image. The statistical information from the three-dimensional flow data is used to determine the display values for the flow imaging.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: March 12, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Seshadri Srinivasan, Kutay F. Ustuner, Ismayil M. Guracar
  • Publication number: 20120283568
    Abstract: 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 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 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.
    Type: Application
    Filed: June 29, 2012
    Publication date: November 8, 2012
    Applicant: Siemens Medical Solutions USA,Inc.
    Inventors: Rickard C. Loftman, Kutay F. Ustuner, Charles E. Bradley
  • Patent number: 8245577
    Abstract: Depth ambiguity artifact is addressed. The pulse repetition interval is periodically varied. This jitter in the interval causes variance in the artifact while maintaining actual tissue or signal. The variation of the artifact may be visually detected or automatically detected and reduced, such as by removal. By removing the information associated with the variation of the artifact, the constant or maintained information may be presented with fewer artifacts. The variation may result in greater blurring of the artifact thereby reducing the artifact.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: August 21, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Kutay F. Ustuner
  • Patent number: 8241216
    Abstract: 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.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: August 14, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Rickard C. Loftman, Kutay F. Ustuner, Charles E. Bradley
  • Patent number: 8170318
    Abstract: Image enhancement is provided in ultrasound imaging. A filter bank is used to process the data. The data may be processed in parallel. Each filter outputs data representing a same location, but with a kernel path (e.g., line, curved line, area, curved surface, or volume) different than for the other filters. For example, three filters filter along respective orthogonal planes. The filters may use preselected or data independent paths. The output of the filter bank is determined from the outputs of the filters in the bank, such as by selecting the maximum value. This bank-based filtering may enhance data associated with anatomical surfaces or contours and/or may reduce speckle. The parallel operation of the filters may allow for more rapid processing and/or processing a greater amount of data as compared to using a single filter.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: May 1, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bimba S. Rao, Ismayil M. Guracar, Kutay F. Ustuner
  • Patent number: 7998074
    Abstract: A medical imaging system automatically acquires two-dimensional images representing a user-defined region of interest despite motion. The plane of acquisition is updated or altered adaptively as a function of detected motion. The user-designated region of interest is then continually scanned due to the alteration in scan plane position. A multi-dimensional array is used to stabilize imaging of a region of interest in a three-dimensional volume. The user defines a region of interest for two-dimensional imaging. Motion is then detected. The position of a scan plane used to generate a subsequent two-dimensional image is then oriented as a function of the detected motion within the three-dimensional volume. By repeating the motion determination and adaptive alteration of the scan plane position, real time imaging of a same region of interest is provided while minimizing the region of interest fading into or out of the sequence of images.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 16, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: James E. Chomas, Kutay F. Ustuner, Thilaka S. Sumanaweera
  • Patent number: 7993272
    Abstract: A medical imaging system automatically acquires two-dimensional images representing a user-defined region of interest despite motion. The plane of acquisition is updated or altered adaptively as a function of detected motion. The user-designated region of interest is then continually scanned due to the alteration in scan plane position. A multi-dimensional array is used to stabilize imaging of a region of interest in a three-dimensional volume. The user defines a region of interest for two-dimensional imaging. Motion is then detected. The position of a scan plane used to generate a subsequent two-dimensional image is then oriented as a function of the detected motion within the three-dimensional volume. By repeating the motion determination and adaptive alteration of the scan plane position, real time imaging of a same region of interest is provided while minimizing the region of interest fading into or out of the sequence of images.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 9, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: James E. Chomas, Kutay F. Ustuner, Thilaka S. Sumanaweera
  • Patent number: 7887487
    Abstract: Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: February 15, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiaohui Hao, Kutay F. Ustuner, Gregory L. Holley, Seshadri Srinivasan, Albert Gee