Patent ID: 7233143

Claim:
A computer-readable medium storing processor executable instructions operable to perform a method, the method comprising: acquiring two reconstructed MRI images S 0 and S 1 of an object located in a B 0 field, where acquiring S 0 and S 1 includes configuring an MRI apparatus to employ normally spatially selective radio frequency (RF) pulses for each repetition time (TR) with an echo time (TE)=nτ for a first reconstructed image S 0 and a TE=(n+1)τ for a second reconstructed image S 1 , where n is a positive integer, and τ is the time during which fat spins process 180° degrees out of phase with respect to water spins, and acquiring S 0 and S 1 using the MRI apparatus; creating an estimated B 0 off-resonance frequency field map using a block regional off-resonance correction spiral two point Dixon (BRORC-S2PD) technique without performing multi-frequency testing of the B 0 field, where the B 0 off-resonance field map is related to the B 0 field present when the MRI images were acquired; and reconstructing a de-blurred water image using a BRORC-S2PD technique and the estimated B 0 off-resonance frequency field map.