Patent ID: 6259250
Filing Date: 2001-07-10
Classification: G01R

Abstract:
A method for performing an echo planar imaging pulse sequence in a magnetic resonance imaging system, the pulse sequence including a series of gradient pulses and radio frequency pulses producing a plurality of magnetic resonance echoes from a subject of interest, and a plurality of oscillating polarity readout pulses, the method comprising the steps of:generating a first set of oscillating polarity readout pulses;collecting first image data during the first set of readout pulses;generating a second set of oscillating polarity readout pulses having a polarities opposite from the first set of readout pulses;collecting second image data during the second set of readout pulses; andprocessing the first and second image data to correct phase errors, wherein processing comprises combining lines of k-space data of the first and second image data to obtain reformatted k-space frames.