Patents by Inventor Curtis L. Johnson

Curtis L. Johnson 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: 11131738
    Abstract: A method and system provides an acquisition scheme for generating magnetic resonance elastography displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time. The method and system can acquire in-plane and through-plane k-space shots over a volume of a sample divided into a plurality of slabs that each include a plurality of non-adjacent slices to obtain three dimensional multiband, multishot data, can apply multiband radio frequency refocusing pulses to the sample, can acquire navigators before readout, and can correct for non-linear motion errors.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 28, 2021
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley P. Sutton, Joseph L. Holtrop
  • Patent number: 11033199
    Abstract: Magnetic resonance elastography (MRE) is an imaging technique for estimating the stiffness of tissues non-invasively. Shear waves are generated via external mechanical actuation and the tissue imaged with a specially designed MR pulse sequence. The resulting images are used to calculate the underlying properties. The application provides methods for acquiring MRE data using a single shot, echo planar imaging readout. The purpose of the developed sequence is to acquire MRE data using a single-shot, echo-planar imaging readout, avoiding to need for off-line image processing.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 15, 2021
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley Sutton
  • Patent number: 10551464
    Abstract: A method and system provides an acquisition scheme for generating MRE displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time. The method and system can acquire in-plane k-space shots over a volume of a sample divided into a plurality of slabs that each include a plurality of slices to obtain three dimensional multislab, multishot data, can apply refocusing pulses to the sample, can acquire navigators after the refocusing pulses, and can correct for phase errors based on an averaging of the navigators.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: February 4, 2020
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley Sutton, John G. Georgiadis, Joseph L. Holtrop
  • Publication number: 20200025852
    Abstract: A method and system provides an acquisition scheme for generating magnetic resonance elastography displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time. The method and system can acquire in-plane and through-plane k-space shots over a volume of a sample divided into a plurality of slabs that each include a plurality of non-adjacent slices to obtain three dimensional multiband, multishot data, can apply multiband radio frequency refocusing pulses to the sample, can acquire navigators before readout, and can correct for non-linear motion errors.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley P. Sutton, Joseph L. Holtrop
  • Patent number: 10527700
    Abstract: A method and system provides an acquisition scheme for generating magnetic resonance elastography displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time. The method and system can acquire in-plane and through-plane k-space shots over a volume of a sample divided into a plurality of slabs that each include a plurality of non-adjacent slices to obtain three dimensional multiband, multishot data, can apply multiband radio frequency refocusing pulses to the sample, can acquire navigators before readout, and can correct for non-linear motion errors.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: January 7, 2020
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley P. Sutton, Joseph L. Holtrop
  • Publication number: 20180106879
    Abstract: A method and system provides an acquisition scheme for generating magnetic resonance elastography displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time. The method and system can acquire in-plane and through-plane k-space shots over a volume of a sample divided into a plurality of slabs that each include a plurality of non-adjacent slices to obtain three dimensional multiband, multishot data, can apply multiband radio frequency refocusing pulses to the sample, can acquire navigators before readout, and can correct for non-linear motion errors.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 19, 2018
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Curtis L. Johnson, Bradley P. Sutton, Joseph L. Holtrop
  • Publication number: 20160374586
    Abstract: Magnetic resonance elastography (MRE) is an imaging technique for estimating the stiffness of tissues non-invasively. Shear waves are generated via external mechanical actuation and the tissue imaged with a specially designed MR pulse sequence. The resulting images are used to calculate the underlying properties. The application provides methods for acquiring MRE data using a single shot, echo planar imaging readout. The purpose of the developed sequence is to acquire MRE data using a single-shot, echo-planar imaging readout, avoiding to need for off-line image processing.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 29, 2016
    Inventors: Curtis L. Johnson, Bradley Sutton
  • Publication number: 20160266225
    Abstract: A method and system provides an acquisition scheme for generating MRE displacement data with whole-sample coverage, high spatial resolution, and adequate SNR in a short scan time.
    Type: Application
    Filed: August 7, 2014
    Publication date: September 15, 2016
    Inventors: CURTIS L. JOHNSON, BRADLEY SUTTON, JOHN G. GEORGIADIS, JOSEPH L. HOLTROP
  • Patent number: 4082161
    Abstract: A scaffolding assembly for use particularly in the construction of large holding tanks and which incorporates a novel construction and method of being raised from one level to another, the device including a series of scaffold sections made of aluminum and steel, the sections being pivotally attached together to conform to the tank contour, each section having brackets secured therebeneath that fit into bracket straps welded to the tank wall; the entire assembly being raised together on sky climbers in which all hoists are controlled by a single switch so to lift the assembly all together from an old set of straps to a new set thereabove.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: April 4, 1978
    Inventor: Curtis L. Johnson