Patents Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES PARIS, FRANCE
  • Patent number: 11937908
    Abstract: A method of performing magnetic resonance imaging of a body includes a) immerging the body in a static and substantially uniform magnetic field; b) exciting nuclear spins inside the body using at least one radio-frequency pulse; c) applying to the body a time-varying magnetic field gradient defining at least one trajectory (ST) in k-space and simultaneously acquiring samples of a magnetic resonance signal so as to perform a pseudo-random sampling (KS) of the k-space; and d) applying a sparsity-promoting nonlinear reconstruction algorithm for reconstructing a magnetic resonance image of the body; wherein, at least in a low-spatial frequency region of the k-space, the distance between any two adjacent points belonging to a same trajectory is lower than 1/FOV, FOV being the size of a field of view of the reconstructed image. A magnetic resonance imaging apparatus for carrying out such a method is also provided.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 26, 2024
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES PARIS, FRANCE, UNIVERSITÉ PARIS-SACLAY, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Nicolas Chauffert, Philippe Ciuciu, Jonas Kahn, Carole Lazarus, Alexandre Vignaud, Pierre Weiss
  • Publication number: 20130251629
    Abstract: The present invention relates to a nanoemulsion in gel-form comprising a continuous aqueous phase and at least one dispersed oily phase, in which: the aqueous phase comprises: at least one co-surfactant including at least one polyalkoxylated chain consisting of ethylene oxide or ethylene oxide and propylene oxide units, and at least one hydrophilic agent of interest, and the oily phase comprises: at least one amphiphilic lipid, at least one solubilizing lipid consisting in a mixture of saturated fatty acid glycerides including: at least 10% by weight of C12 fatty acids, at least 5% by weight of C14 fatty acids, at least 5% by weight of C16 fatty acids, and at least 5% by weight of C18 fatty acids, at least one lipophilic agent of interest, said hydrophilic and lipophilic agents of interest being independently selected from among: a therapeutic agent, an optical agent selected from among a coloring agent, a chromophore, a fluorophore, and a physical agent selected from among a radioactive isotope and a
    Type: Application
    Filed: February 17, 2011
    Publication date: September 26, 2013
    Applicant: Commissariat a l'energie atomique et aux energies alternatives PARIS FRANCE Nationality: French
    Inventors: Thomas Delmas, Anne-Claude Couffin