Magnetic resonance imaging system and method

A magnetic resonance imaging (MRI) system, comprising.

• a magnet configured to generate a polarizing magnetic field about at least a portion of an object arranged in the MRI system;
• a gradient coil assembly including a readout gradient coil, a phase gradient coil, a slice selection gradient coil configured to apply at least one gradient field to the polarizing magnetic field;
• a radio frequency (RF) system configured to apply an RF field to the object and to receive magnetic resonance signals from the object;
• a processing system programmed to:
• acquire an initial set of radial k-space spokes;
• estimate a plurality of motion states of the object based on the initial set of radial k-space spokes;
• acquire a first set of radial k-space spokes based on a pre-defined view order sequence;
• estimate a motion of the object based on the first set of radial k-space spokes;
• adjust the pre-defined view order if the motion of the object is detected;
• acquire a second set of radial k-space spokes based on the adjusted pre-defined view order;
• generate an MRI k-space by distributing the radial k-space spokes having similar motion evenly across the MRI k-space;
• and
• reconstruct the image of the object based on the MRI k-space.

A method for generating an image of an object with a magnetic resonance imaging (MRI) system, the method comprising:

• estimating a plurality of motion states of the object based on an initial set of radial k-space spokes;
• acquiring MRI radial k-space spokes for generating a MRI k-space;
• estimating a motion of the object from at least one of the MRI radial k-space spokes;
• adjusting a view order of acquiring the MRI radial k-space spokes based on the detected motion of the object;
• generating the MRI k-space by distributing the radial MRI k-space spokes having similar motion evenly across the MRI k-space;
• and
• reconstructing the image of the object based on the MRI k-space.