Patents by Inventor Julien Grondin

Julien Grondin 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).

  • Systems and methods for rendering of cardiac electromechanical activation
    Patent number: 11678859
    Abstract: Systems and methods for generating an electromechanical map are disclosed herein. The methods includes obtaining ultrasound data comprising a series of consecutive image frames and radio frequency (RF) signals corresponding to the location in the heart; measuring displacements and strains based on the ultrasound data to determine an electromechanical activation in the location; converting the ultrasound data into a series of isochrone maps; and combining the series of isochrone maps to generate the electromechanical map. The electromechanical map illustrates the electromechanical activation and internal wall structures of the heart.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 20, 2023
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Elisa Konofagou, Pierre Nauleau, Elaine Wan, Lea Melki, Julien Grondin
  • NON-INVASIVE SYSTEMS AND METHODS FOR RENDERING OF CARDIAC ELECTROMECHANICAL ACTIVATION
    Publication number: 20200214662
    Abstract: Systems and methods for generating an electromechanical map are disclosed herein. The methods includes obtaining ultrasound data comprising a series of consecutive image frames and radio frequency (RF) signals corresponding to the location in the heart; measuring displacements and strains based on the ultrasound data to determine an electromechanical activation in the location; converting the ultrasound data into a series of isochrone maps; and combining the series of isochrone maps to generate the electromechanical map. The electromechanical map illustrates the electromechanical activation and internal wall structures of the heart.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 9, 2020
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Elisa Konofagou, Pierre Nauleau, Elaine Wan, Lea Melki, Julien Grondin
  • SYSTEMS AND METHODS FOR MECHANICAL MAPPING OF CARDIAC RHYTHM
    Publication number: 20200163646
    Abstract: Techniques for mapping behavior of a heart include acquiring a series of two or more images of the heart. The series of images is taken at one or more pixel locations, each pixel location corresponding to a region of the heart. Image data corresponding to the pixel locations can be obtained, and a periodicity of the image data measured for each of the pixel locations over the series of images. The periodicity corresponds to an electromechanical signal of the heart in the region corresponding to the measured one or more pixel locations.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 28, 2020
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Elisa E. Konofagou, Jean Provost, Alok Gambhir, Alexandre Costet, Elaine Wan, Julien Grondin
  • Systems and methods for mechanical mapping of cardiac rhythm
    Patent number: 10517564
    Abstract: Techniques for mapping behavior of a heart include acquiring a series of two or more images of the heart. The series of images is taken at one or more pixel locations, each pixel location corresponding to a region of the heart. Image data corresponding to the pixel locations can be obtained, and a periodicity of the image data measured for each of the pixel locations over the series of images. The periodicity corresponds to an electromechanical signal of the heart in the region corresponding to the measured one or more pixel locations.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: December 31, 2019
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Elisa E. Konofagou, Jean Provost, Alok Gambhir, Alexandre Costet, Elaine Wan, Julien Grondin
  • METHODS AND SYSTEMS FOR ULTRASOUND ELASTOGRAPHY
    Publication number: 20190167233
    Abstract: The disclosed subject matter provides methods and systems for ultrasound elastography, including the use of ultrasound to assess the mechanical properties of tissue in a three-dimensional volume. An exemplary method for ultrasound elastography includes emitting at least one non-focused wave on a target, obtaining Radio Frequency (RF) signals from the non-focused wave, beamforming 3D volumes from the RF, calculating at least two 3D displacements by comparing each volume to a reference volume, and integrating the 3D displacements to create a 3D cumulative axial strain volume.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Elisa KONOFAGOU, Clement PAPADACCI, Ethan BUNTING, Julien GRONDIN
  • SYSTEMS AND METHODS FOR MECHANICAL MAPPING OF CARDIAC RHYTHM
    Publication number: 20150289840
    Abstract: Techniques for mapping behavior of a heart include acquiring a series of two or more images of the heart. The series of images is taken at one or more pixel locations, each pixel location corresponding to a region of the heart. Image data corresponding to the pixel locations can be obtained, and a periodicity of the image data measured for each of the pixel locations over the series of images. The periodicity corresponds to an electromechanical signal of the heart in the region corresponding to the measured one or more pixel locations.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 15, 2015
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Elisa E. Konofagou, Jean Provost, Alok Gambhir, Alexandre Costet, Elaine Wan, Julien Grondin