System and method for magnetic resonance imaging

A method for magnetic resonance imaging (MRI) implemented on a computing device having at least one processor and at least one storage device, the method comprising:

• obtaining a plurality of sets of under-sampled k-space data corresponding to a plurality of frames, each of the plurality of frame being a time segment during an MRI scan, each of the plurality of sets of under-sampled k-space data being acquired simultaneously from a plurality of slice locations of a subject using an MRI scanner in one frame of the plurality of frames, the plurality of frames including at least one odd frame and at least one even frame, the plurality of sets of under-sampled k-space data including at least one first set of under-sampled k-space data corresponding to the at least one odd frame and at least one second set of under-sampled k-space data corresponding to the at least one even frame, a first sampling pattern that acquires odd PE lines in a k-space matrix being adopted in the at least one odd frame, and a second sampling pattern that acquires even PE lines in the k-space matrix being adopted in the at least one even frame;
• generating a first set of reference k-space data corresponding to the at least one odd frame based on the at least one first set of under-sampled k-space data corresponding to the at least one odd frame;
• generating a second set of reference k-space data corresponding to the at least one even frame based on the at least one second set of under-sampled k-space data corresponding to the at least one even frame;
• reconstructing, based on the first set of reference k-space data and the second set of reference k-space data, a plurality of reference slice images, each of the plurality of reference slice images being representative of one of the plurality of slice locations in more than one frame of the plurality of frames;
• and
• reconstructing, based on the sets of under-sampled k-space data and the plurality of reference slice images, a plurality of image series each of which corresponds to one of the plurality of slice locations and includes a plurality of slice images of the corresponding slice location in the plurality of frames.

A non-transitory computer-readable storage medium including a set of instructions for magnetic resonance imaging (MRI), wherein when executed by at least one processor of a system, the set of instructions causes the system to effectuate a method, the method comprising:

• obtaining a plurality of sets of under-sampled k-space data corresponding to a plurality of frames, each of the plurality of frame being a time segment during an MRI scan, each of the plurality of sets of under-sampled k-space data being acquired simultaneously from a plurality of slice locations of a subject using an MRI scanner in one frame of the plurality of frames, the plurality of frames including at least one odd frame and at least one even frame, the plurality of sets of under-sampled k-space data including at least one first set of under-sampled k-space data corresponding to the at least one odd frame and at least one second set of under-sampled k-space data corresponding to the at least one even frame, a first sampling pattern that acquires odd PE lines in a k-space matrix being adopted in the at least one odd frame, and a second sampling pattern that acquires even PE lines in the k-space matrix being adopted in the at least one even frame;
• generating a first set of reference k-space data corresponding to the at least one odd frame based on the at least one first set of under-sampled k-space data corresponding to the at least one odd frame;
• generating a second set of reference k-space data corresponding to the at least one even frame based on the at least one second set of under-sampled k-space data corresponding to the at least one even frame;
• reconstructing, based on the first set of reference k-space data and the second set of reference k-space data, a plurality of reference slice images, each of the plurality of reference slice images being representative of one of the plurality of slice locations in more than one frame of the plurality of frames;
• and
• reconstructing, based on the sets of under-sampled k-space data and the plurality of reference slice images, a plurality of image series each of which corresponds to one of the plurality of slice locations and includes a plurality of slice images of the corresponding slice location in the plurality of frames.