METHOD AND APPARATUS FOR ACCELERATED MAGNETIC RESONANCE IMAGING

A method of performing magnetic resonance imaging of a body comprising: a. immerging the body in a static and substantially uniform magnetic field; b. exciting nuclear spins inside said body using at least one radio-frequency pulse; c. applying to said body a time-varying magnetic field gradient def...

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Bibliographic Details
Main Authors KAHN, Jonas, CIUCIU, Philippe, WEISS, Pierre, LAZARUS, Carole, CHAUFFERT, Nicolas, VIGNAUD, Alexandre
Format Patent
LanguageEnglish
French
German
Published 22.05.2024
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A method of performing magnetic resonance imaging of a body comprising: a. immerging the body in a static and substantially uniform magnetic field; b. exciting nuclear spins inside said body using at least one radio-frequency pulse; c. applying to said 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 said 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.
Bibliography:Application Number: EP20180765635