Patent ID: 6700374
Filing Date: 2004-03-02
Classification: G01R

Abstract:
A method of magnetic resonance imaging comprising:(a) applying an EPI pulse sequence with an MRI scanner to induce a detectable magnetic resonance signal from a selected region of a subject positioned in the MRI scanner; (b) receiving and demodulating the magnetic resonance signal to generate raw data; (c) applying a pair of ghost reducing correction factors to the raw data, said pair of corrections factors including a phase correction factor and a data alignment correction factor, wherein the phase correction factor compensates for phase errors in the raw data and the data alignment correction factor effectively shifts a data acquisition window under which the raw data was collected to thereby align the raw data with respect to itself in k-space; (d) loading the correction factor affected data into k-space to generate a k-space data matrix; (e) subjecting the k-space data matrix to an algorithm to reconstruct actual image data therefrom; and, (f) calculating values for the pair of correction factors using the reconstructed actual image data from step (e).