Patents by Inventor Gwenael Henri Herigault

Gwenael Henri Herigault 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).

  • MRI with motion correction using navigators acquired using a dixon technique
    Patent number: 10444315
    Abstract: At least a portion of a body (10) is placed in a main magnetic field Bo within the examination volume of a MR device. The portion of the body (10) is subject to an imaging sequence including one or more RF pulses and switched magnetic field gradients to acquire imaging signals. The portion of the body (10) is subject to a navigator sequence applied at least once before, during, or after the imaging sequence. The navigator sequence includes one or more RF pulses and switched magnetic field gradients controlled to acquire navigator signals with a single-point or multi-point Dixon technique. Translation and/or rotation and/or shear data reflecting motion of the body are derived from the navigator signals during the acquisition of the imaging signals. The translation and/or rotation and/or shear data are used for adapting the imaging sequence and/or for motion correction during reconstruction of an MR image.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: October 15, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Gabriele Marianne Beck, Tim Nielsen, Arjan Willem Simonetti, Gwenael Henri Herigault, Mathijs Visser
  • MR imaging using a multi-point dixon technique
    Patent number: 9575153
    Abstract: At least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). A portion of the body (10) is subject to a calibration sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by a multi-point Dixon technique at a first image resolution. Calibration parameters are derived from the calibration signal data set. The MR device (1) is controlled according to the derived calibration parameters. The portion of the body (10) is subject to an imaging sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution. A diagnostic MR image is reconstructed from the diagnostic signal data set.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: February 21, 2017
    Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Arjan Willem Simonetti, Gwenael Henri Herigault, Peter Boernert
  • MRI WITH MOTION CORRECTION USING NAVIGATORS ACQUIRED USING A DIXON TECHNIQUE
    Publication number: 20150323637
    Abstract: The invention relates to a method of MR imaging of at least a portion of a body (10) placed in a main magnetic field Bo within the examination volume of a MR device. It is an object of the invention to enable MR imaging with reliable motion detection and high image quality.
    Type: Application
    Filed: February 4, 2013
    Publication date: November 12, 2015
    Inventors: GABRIELE MARIANNE BECK, TIM NIELSEN, ARJAN WILLEM SIMONETTI, GWENAEL HENRI HERIGAULT, MATHIJS VISSER
  • MR IMAGING USING A MULTI-POINT DIXON TECHNIQUE
    Publication number: 20130249553
    Abstract: The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). It is an object of the invention to provide a method that enables improved fat saturation.
    Type: Application
    Filed: November 24, 2011
    Publication date: September 26, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Arjan Willem Simonetti, Gwenael Henri Herigault, Peter Boernert