COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES;UNIVERSITÉ PARIS-SACLAY;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
发明人:
Nicolas CHAUFFERT,Philippe CIUCIU,Jonas KAHN,Carole LAZARUS,Alexandre VIGNAUD,Pierre WEISS
申请号：
US16639725
公开号：
US20200205692A1
申请日:
2018.09.06
申请国别(地区):
US
年份:
2020
代理人:
摘要：
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.
