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).

  • Publication number: 20040006266
    Abstract: Methods and systems for forming images of heart by using multiple sets of ultrasound data are described. Each set of data is acquired and processed responsive to a different set of imaging parameters. The imaging parameter sets differ in at least one parameter, such as array position, temporal frequency response or transmit focal depth, so that the images formed using these data sets have, either laterally or axially, different spatial spectra. In one of the preferred embodiments, a set of images is formed responsive to a first imaging parameter set for a first cardiac cycle. Another set of images is formed responsive to a second imaging parameter set for a second cardiac cycle. Then the two sets of images are temporally aligned so that they correspond to the same set of phases of the cardiac cycle. The temporally aligned images may also be spatially aligned and combined. This technique can improve contrast resolution and/or field of view.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 8, 2004
    Applicant: Acuson, A Siemens Company.
    Inventors: Kutay F. Ustuner, Thilaka S. Sumanaweera, Sevig Ayter, Kenneth M. Fowkes, John A. Hossack, John W. Allison
  • Patent number: 6641536
    Abstract: A medical diagnostic ultrasound imaging system aligns substantially co-planar two-dimensional images to form an extended field of view using improved compounding methods. Compounding with a finite impulse response is used for more versatile compositing. The compounding is adaptive, such as through adapting the image regions, weighting, or type of compounding as a function of correlation, location within the image, estimated motion or combinations thereof. A user warning is provided as a function of the correlation between images.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: November 4, 2003
    Assignee: Acuson Corporation
    Inventors: John A. Hossack, Linyong Pang, Thilaka S. Sumanaweera, John W. Allison, Kutay F. Ustuner, Charles E. Bradley
  • Publication number: 20030158479
    Abstract: Methods and systems for automatic adjustment of the transmit power are provided. Excess transmit power is determined as a function of the difference between a noise level and the lower end of the dynamic range of the system as configured. Based on the excess transmit power, the transmit power is reduced from the regulated maximum default settings to about a minimum while substantially preserving the original display image. This minimizes the acoustic energy delivered to the transducer and the body, thus reducing transducer heating and satisfying the FDA's ALARA principle.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 21, 2003
    Applicant: Acuson, A Siemens Company
    Inventors: Andrew Li, Kutay F. Ustuner
  • Patent number: 6579238
    Abstract: A medical ultrasonic imaging system uses an adaptive multi-dimensional back-end mapping stage to eliminate loss of information in the back-end, minimize any back-end quantization noise, reduce or eliminate electronic noise, and map the local average of soft tissue to a target display value throughout the image. The system uses spatial variance to identify regions of the image corresponding substantially to soft tissue and a noise frame acquired with the transmitters turned off to determine the mean system noise level. The system then uses the mean noise level and the identified regions of soft tissue to both locally and adaptively set various back-end mapping stages, including the gain and dynamic range.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: June 17, 2003
    Assignee: Acuson Corporation
    Inventors: Constantine Simopoulos, Kutay F. Üstüner, Anming He Cai, Jeffrey T. Rahn, John Jackson, Matthew O'Donnell
  • Patent number: 6551246
    Abstract: A pulse echo beamforming system generates high spatial bandwidth ultrasound images using only a few transmit/receive events per frame. Each transmit/receive event consists of firing an unfocused or weakly focused wave and receiving and storing the echo on every receive channel. Each set of stored echoes is delayed and apodized to form component beams for each desired image point in the region insonified by that particular wave. The final images are synthesized by adding two or more of the component beams for each image point.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: April 22, 2003
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Charles E. Bradley, Lewis J. Thomas, Ching-Hua Chou, David J. Napolitano, Patrick J. Phillips
  • Patent number: 6527720
    Abstract: A medical imaging system provides increased detectability of targets such as membranes, tendons, muscle fibers and biopsy needles that have strong directional responses. This improved result is achieved by compounding multiple images generated by using only one or two transducer firings per ultrasound line. Speckle variance is also reduced as the result of spatial compounding, and this reduction improves the detectability of soft-tissue lesions.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 4, 2003
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Charles E. Bradley, Daniel E. Need
  • Patent number: 6517489
    Abstract: 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.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: February 11, 2003
    Assignee: Acuson Corporation
    Inventors: Patrick J. Phillips, Kutay F. Ustuner, Charles E. Bradley, Lewis J. Thomas, David J. Napolitano
  • Publication number: 20020120195
    Abstract: A medical diagnostic ultrasound imaging system aligns substantially co-planar two-dimensional images to form an extended field of view using improved compounding methods. Compounding with a finite impulse response is used for more versatile compositing. The compounding is adaptive, such as through adapting the image regions, weighting, or type of compounding as a function of correlation, location within the image, estimated motion or combinations thereof. A user warning is provided as a function of the correlation between images.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 29, 2002
    Applicant: Acuson Corporation
    Inventors: John A. Hossack, Linyong Pang, Thilaka S. Sumanaweera, John W. Allison, Kutay F. Ustuner, Charles E. Bradley
  • Patent number: 6432054
    Abstract: A medical diagnostic imaging system generates a compounded beam signal C by combining first and second beam signals B1, B2 subsequent to detection and a synthesized beam signal S by combining the first and second beam signals B1, B2 prior to detection. The compounded signal C and the synthesized signal S are then adaptively weighted in response to a selection signal and combined to form an image signal. In this way, the compounded signal C is made to dominate in regions of the image that benefit from increased contrast resolution and the synthesized signal S is made to dominate in regions of the same image that benefit from increased detail resolution.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 13, 2002
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Mirsaid S. Bolorforosh, Albert Gee
  • Patent number: 6398733
    Abstract: A medical ultrasonic imaging system uses an adaptive multi-dimensional back-end mapping stage to eliminate loss of information in the back-end, minimize any back-end quantization noise, reduce or eliminate electronic noise, and map the local average of soft tissue to a target display value throughout the image. The system uses spatial variance to identify regions of the image corresponding substantially to soft tissue and a noise frame acquired with the transmitters turned off to determine the mean system noise level. The system then uses the mean noise level and the identified regions of soft tissue to both locally and adaptively set various back-end mapping stages, including the gain and dynamic range.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: June 4, 2002
    Assignee: Acuson Corporation
    Inventors: Constantine Simopoulos, Kutay F. Ustuner, Anming He Cai, John Jackson, Matthew O'Donnell
  • Patent number: 6364835
    Abstract: A medical diagnostic ultrasound imaging system aligns substantially co-planar two-dimensional images to form an extended field of view using improved compounding methods. Compounding with a finite impulse response is used for more versatile compositing. The compounding is adaptive, such as through adapting the image regions, weighting, or type of compounding as a function of correlation, location within the image, estimated motion or combinations thereof. A user warning is provided as a function of the correlation between images.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: April 2, 2002
    Assignee: Acuson Corporation
    Inventors: John A. Hossack, Linyong Pang, Thilaka S. Sumanaweera, John W. Allison, Kutay F. Ustuner, Charles E. Bradley
  • Patent number: 6352511
    Abstract: Ultrasound data is generated by a receive beamformer. Ultrasound image processing is applied to the ultrasound data for presentation of an image. Various ones of the ultrasound image processing steps may be reversed. For example, persistence processing may be reversed in order to obtain ultrasound data associated with data prior to persistence processing. This recovered data may be used to generate an image or for application of a different amount of persistence. Other processes that may be reversed to recover ultrasound data include focal and depth gain compensation, dynamic range compression, intensity or color mapping, and various filtering, such as persistence or spatial filtering.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: March 5, 2002
    Assignee: Acuson Corporation
    Inventors: John A. Hossack, Samuel H. Maslak, Kutay F. Ustuner, Mirsaid Seyed-Bolorforosh
  • Patent number: 6322505
    Abstract: Ultrasound data is generated by a receive beamformer. Ultrasound image processing is applied to the ultrasound data for presentation of an image. Various ones of the ultrasound image processing steps may be reversed. For example, persistence processing may be reversed in order to obtain ultrasound data associated with data prior to persistence processing. This recovered data may be used to generate an image or for application of a different amount of persistence. Other processes that may be reversed to recover ultrasound data include focal and depth gain compensation, dynamic range compression, intensity or color mapping, and various filtering, such as persistence or spatial filtering.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: November 27, 2001
    Assignee: Acuson Corporation
    Inventors: John A. Hossack, Samuel H. Maslak, Kutay F. Ustuner, Mirsaid Seyed-Bolorforosh
  • Patent number: 6309356
    Abstract: A pulse echo beamforming system generates high spatial bandwidth ultrasound images using only a few transmit/receive events per frame. Each transmit/receive event consists of firing an unfocused or weakly focused wave and receiving and storing the echo on every receive channel. Each set of stored echoes is delayed and apodized to form component beams for each desired image point in the region insonified by that particular wave. The final images are synthesized by adding two or more of the component beams for each image point.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: October 30, 2001
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Charles E. Bradley, Lewis J. Thomas, Ching-Hua Chou, David Napolitano
  • Patent number: 6277073
    Abstract: A multifocus ultrasonic imaging system transmits two or more successive multifocus beams in order to increase the number of separate focal zones along a given scan line. The operating conditions for different transmit foci are controlled in a multifocus transmit event in order to optimize the operating conditions for each transmit focus and to reduce the unwanted transmit foci interference. In one example, two consecutive multifocus transmit events are transmitted and the transmit focal zones of the first and second transmit events are interleaved in range, thereby increasing the separation between transmit focal zones within a single transmit event.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: August 21, 2001
    Assignee: Acuson Corporation
    Inventors: Mirsaid Seyed Bolorforosh, Ching-Hua Chou, Kutay F. Ustuner, Albert Gee
  • Patent number: 6241674
    Abstract: A medical ultrasonic diagnostic imaging method and apparatus uses a phased array transducer probe to transmit a fundamental coded ultrasonic pulse into a tissue. This pulse has a time-bandwidth product that is greater than 1 but less than 100. A receiver is coupled to the probe to receive an Nth harmonic echo signal from the tissue, and a compression filter compresses the harmonic echo signal with a compression function having a phase that varies about N times as fast as the fundamental coded ultrasonic pulse. In this way, the SNR of the resulting image is increased. The disclosed method and apparatus are particularly well adapted for use with tissue harmonic imaging, because of the typically low SNR characteristic of such imaging. Other aspects are well-suited for imaging with non-linear contrast agents.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: June 5, 2001
    Assignee: Acuson Corporation
    Inventors: Patrick Phillips, Gregory L. Holley, David J. Napolitano, Kutay F. Ustuner
  • Patent number: 6110115
    Abstract: An ultrasonic imaging system and method provide whitening using a two dimensional pre-detection filter followed by low pass filtering using a two dimensional post-detection filter to reduce speckle variance and enhance spatial resolution of the resulting image.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: August 29, 2000
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Matthew O'Donnell
  • Patent number: 6057632
    Abstract: A wideband ultrasound transducer having a plurality of transducer elements sequentially arranged in an azimuth direction. Each transducer element is spaced from adjacent transducer elements in the azimuth direction and each transducer element extends from a first end to a second end in an elevation direction. Each transducer element has a thickness in a range direction that increases from the first end to the second end wherein each transducer element is thinnest at the first end and thickest at the second end. The spacing of the transducer elements increases from the first end to the second end so that the spacing is at a minimum at the first end and a maximum at the second end.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: May 2, 2000
    Assignee: Acuson Corporation
    Inventor: Kutay F. Ustuner
  • Patent number: 5919138
    Abstract: An ultrasound imaging system user interface is provided. The interface comprises an imaging-parameter-selection domain comprising a plurality of domain locations, each corresponding to a respective plurality of imaging parameter configurations that affect spatial resolution, temporal resolution, and sensitivity. The interface also comprises an input means for progressively selecting a domain location. The domain can be one-or two-dimensional. In a two-dimensional domain, the plurality of imaging parameter configurations can be at least partially a function of distances from a selected domain location to each corner of the domain. In one embodiment, the domain comprises three corners that correspond to parameters that will provide an image with the best spatial resolution, temporal resolution, and sensitivity, respectively. With the ultrasound imaging system user interface, a user can selectively apply a plurality of ultrasound imaging system parameters.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: July 6, 1999
    Assignee: Acuson Corporation
    Inventor: Kutay F. Ustuner
  • Patent number: 5902242
    Abstract: An ultrasonic imaging system includes an ultrasonic transducer array having a thinner portion, an intermediate portion, and a thicker portion that extend along an azimuthal direction. This transducer array is used to acquire first and second images of an imaged region. The first and second images differ in ultrasonic imaging bandwidth and/or ultrasonic center frequency such that the intermediate transducer portion is active in both the images while at least one of the thinner and the thicker transducer portions is active in only one of the images. The first and second images are then combined to form a composite display image.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: May 11, 1999
    Assignee: Acuson Corporation
    Inventors: Kutay F. Ustuner, Charles E. Bradley