Reduced field-of-view (rFOV) imaging offers several advantages, including decreased image distortion and high spatial resolution. We describe a simultaneous multi-segment (SMSeg) imaging method to extend the benefits of rFOV to multi-segment imaging in multiple focal regions. SMSeg was implemented using a 2D RF pulse whose multiple spatial response replicates excited different focal regions of interest, followed by GRAPPA reconstruction utilizing the coil spatial sensitivity variations in two orthogonal spatial directions. We have applied the SMSeg imaging technique to brain fMRI to visualize activations in multiple areas with minimal image distortion.
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