Systems and methods for reduced off-resonance blurring in spiral imaging

A system, comprising:

• a magnetic resonance imaging (MRI) device;
• one or more processors;
• and
• at least one memory device in communication with the MRI device, storing computer-readable instructions that, when executed by the one or more processors, cause the system to:
• acquire magnetic resonance imaging (MRI) data associated with an area of interest of a subject, by:
• acquiring, by the MRI device, a first set of spiral interleaf data for each of one or more spiral-in/out interleaves by performing a first sampling each of one or more locations in k-space along a first redundant spiral-in/out trajectory,
• acquiring a second set of spiral interleaf data for each of the one or more spiral-in/out interleaves by performing a second sampling of each of the one or more locations in the k-space along a second redundant spiral-in/out trajectory,
• wherein the second redundant spiral-in/out trajectory corresponds to a time-reversed trajectory of the first redundant spiral-in/out trajectory,
• combining, by the one or more processors, the first set of spiral interleaf data and the second set of spiral interleaf data with an averaging operation such as to reduce artifacts.

A computer-readable storage medium having stored computer-executable instructions that, when executed by one or more processors, cause a computer to perform functions comprising:

• acquiring magnetic resonance imaging (MRI) data associated with an area of interest of a subject, comprising:
• acquiring a first set of spiral interleaf data for each of one or more spiral-in/out interleaves by performing a first sampling each of one or more locations in k-space along a first redundant spiral-in/out trajectory,
• acquiring a second set of spiral interleaf data for each of the one or more spiral-in/out interleaves by performing a second sampling of each of the one or more locations in the k-space along a second redundant spiral-in/out trajectory,
• wherein the second redundant spiral-in/out trajectory corresponds to a time-reversed trajectory of the first redundant spiral-in/out trajectory,
• combining the first set of spiral interleaf data and the second set of spiral interleaf data with an averaging operation such as to reduce artifacts.