The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Oct. 15, 2018
Institut Du Cerveau ET DE LA Moelle Epiniere (Icm), Paris, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Institut National DE LA Sante ET DE LA Recherche Medicale (Inserm), Paris, FR;
Assistance Publique-hôpitaux DE Paris (Ap-hp), Paris, FR;
Sorbonne Universite, Paris, FR;
Mathieu Santin, La Rochette, FR;
INSTITUT DU CERVEAU ET DE LA MOELLE EPINIERE (ICM), Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), Paris, FR;
ASSISTANCE PUBLIQUE—HOPITAUX DE PARIS (AP-HP), Paris, FR;
SORBONNE UNIVERSITE, Paris, FR;
Abstract
The present invention improves the quality of the magnitude and phase images produced in medical imaging, in particular in the case of multi-antenna MRI. The invention proposes to generate () such an image (I) by summing the complex image data (p,{tilde over (p)}) obtained from different antennas by weighting these data using only the diagonal elements (R) of an antenna noise covariance matrix or its inverse or pseudo-inverse matrix (R). A reference antenna (Ref) may be determined (), so as to be able to replace (), in each of these datum, a phase component specific to the acquisition antenna by a reference phase component. The reference antenna is preferably a virtual antenna formed by linear combination of the antennas of the MRI system. If significant improvements are obtained in the phase image resulting from the summation, a very clear gain is also surprisingly obtained in the magnitude image.