Patents by Inventor Jean-Francois Mangin

Jean-Francois Mangin 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).

  • Real-time magnetic resonance diffusion imaging
    Patent number: 8330462
    Abstract: A method for performing magnetic resonance diffusion imaging, comprising: (a) acquiring a sequence of magnetic resonance images of a target body (BS) using diffusion-encoding gradient pulses applied along a set of non-collinear orientations ( ) sampling a three-dimensional orientation space (AR); (b) estimating, from said sequence of images, a set of space- and orientation-dependent parameters representative of molecular diffusion within said target body; wherein said step of estimating a set of space- and orientation-dependent parameters representative of molecular diffusion within said target body is performed in real time by means of an incremental estimator such as a Kalman filter fed by data provided by said magnetic resonance images; characterized in that said three-dimensional orientation space (AR) selectively excludes a set of orientations (FR) for which magnetic resonance signal intensity is attenuated by diffusion below a threshold level.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: December 11, 2012
    Assignee: Commissariat a l'Energie Atomique et Aux Energies Alternatives
    Inventors: Cyril Poupon, Fabrice Poupon, Alexis Roche, Jean-François Mangin
  • Real-Time Magnetic Resonance Diffusion Imaging
    Publication number: 20100308821
    Abstract: A method for performing magnetic resonance diffusion imaging, comprising: (a) acquiring a sequence of magnetic resonance images of a target body (BS) using diffusion-encoding gradient pulses applied along a set of non-collinear orientations ( ) sampling a three-dimensional orientation space (AR); (b) estimating, from said sequence of images, a set of space- and orientation-dependent parameters representative of molecular diffusion within said target body; wherein said step of estimating a set of space- and orientation-dependent parameters representative of molecular diffusion within said target body is performed in real time by means of an incremental estimator such as a Kalman filter fed by data provided by said magnetic resonance images; characterized in that said three-dimensional orientation space (AR) selectively excludes a set of orientations (FR) for which magnetic resonance signal intensity is attenuated by diffusion below a threshold level.
    Type: Application
    Filed: October 24, 2008
    Publication date: December 9, 2010
    Inventors: Cyril Poupon, Fabrice Poupon, Alexis Roche, Jean-Francois Mangin