1. A method for reducing image distortion or increasing spatial resolution in magnetic resonance imaging (MRI), comprising: using an MRI system, dividing a targeted field of view image into a plurality of segments, each segment of the plurality of segments having a predetermined overlap region with an adjacent segment; using the MRI system, acquiring image data for each segment of the plurality of segments using a reduced field of view with a 2D radiofrequency (RF) excitation pulse; using the MRI system, determining a spatial response of the 2D radiofrequency (RF) excitation pulse; and using the spatial response of the 2D radiofrequency (RF) excitation pulse in the phase-encoding direction, and using the MRI system, combining the acquired image data for each segment of the plurality of segments to generate a combined magnetic resonance image having the targeted field of view.