Patent ID: 7375519

Claim:
An MR system comprising: a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet to impress a polarizing magnetic field and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images; and a computer readable storage medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to: acquire a pre-scan of a region-of-interest with no more than half a phase encoding gradient; calculate a 1D phase correction based on the pre-scan; calculate a 2D phase correction based on the pre-scan; acquire a first set of k-space lines and a second set of k-space lines from the region-of-interest, the first set of k-space lines and the second set of k-space lines shifted from one another in phase; apply the 1D phase correction on one of the first set of k-space lines and the second set of k-space lines; and apply the 2D phase correction on the first set of k-space lines and the second set of k-space lines during image reconstruction.