Patents by Inventor Nikolas M. Ivancevich

Nikolas M. Ivancevich 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).

  • Ultrasound ARFI Displacement Imaging Using an Adaptive Time Instance
    Publication number: 20160228096
    Abstract: In ARFI imaging, a cost function is used to identify a time of displacement that best or sufficiently indicates the desired information. For example, the displacements associated with a combination of contrast and signal-to-noise ratio are identified. The time at which the desired displacements occur may be other than the time of the maximum. Since the time is common to displacements for one or more scan lines, the displacement image may be assembled line-by-line or by groups of lines.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: Seungsoo Kim, Liexiang Fan, Nikolas M. Ivancevich, David P. Duncan
  • Ultrasound ARFI displacement imaging using an adaptive time instance
    Patent number: 9332962
    Abstract: In ARFI imaging, a cost function is used to identify a time of displacement that best or sufficiently indicates the desired information. For example, the displacements associated with a combination of contrast and signal-to-noise ratio are identified. The time at which the desired displacements occur may be other than the time of the maximum. Since the time is common to displacements for one or more scan lines, the displacement image may be assembled line-by-line or by groups of lines.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 10, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Seungsoo Kim, Liexiang Fan, Nikolas M. Ivancevich, David P. Duncan
  • Swept focus for acoustic radiation force impulse
    Patent number: 9332963
    Abstract: Acoustic radiation force impulse (ARFI) scanning uses a swept focus in transmit. Using a changing delay or phase profile across the array during the generation of the ARFI pulse, a time varying focus is provided for the ARFI beam. This time varying focus may be used to extend the focus in depth, azimuth, and/or elevation. Less repetition may be needed to measure tissue characteristics from displacements due to the multi or continuous change in foci within a given ARFI transmit beam.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: May 10, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Nikolas M. Ivancevich, Xiaozheng Zeng, Liexiang Fan
  • Acquisition control for elasticity ultrasound imaging
    Publication number: 20150272547
    Abstract: Acquisition settings for elasticity imaging are controlled based on detected motion. Rather than rely solely on user settings, one or more acquisition parameters are automatically set based on the detected motion. For example, the settings provide for a more rapid frame rate with less resolution in elasticity imaging for times associated with greater motion and for less rapid frame rate with greater resolution for times associated with lesser motion.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Paul D. Freiburger, Nikolas M. Ivancevich, Liexiang Fan
  • Swept focus for acoustic radiation force impulse
    Publication number: 20150201905
    Abstract: Acoustic radiation force impulse (ARFI) scanning uses a swept focus in transmit. Using a changing delay or phase profile across the array during the generation of the ARFI pulse, a time varying focus is provided for the ARFI beam. This time varying focus may be used to extend the focus in depth, azimuth, and/or elevation. Less repetition may be needed to measure tissue characteristics from displacements due to the multi or continuous change in foci within a given ARFI transmit beam.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 23, 2015
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Nikolas M. Ivancevich, Xiaozheng Zeng, Liexiang Fan
  • Ultrasound ARFI Displacement Imaging Using an Adaptive Time Instance
    Publication number: 20140276046
    Abstract: In ARFI imaging, a cost function is used to identify a time of displacement that best or sufficiently indicates the desired information. For example, the displacements associated with a combination of contrast and signal-to-noise ratio are identified. The time at which the desired displacements occur may be other than the time of the maximum. Since the time is common to displacements for one or more scan lines, the displacement image may be assembled line-by-line or by groups of lines.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Seungsoo Kim, Liexiang Fan, Nikolas M. Ivancevich, David P. Duncan