Patent ID: 6335621
Filing Date: 2002-01-01
Classification: G01R

Abstract:
A method of compensating for a phase error of a phase encoding gradient pulse in fast spin echo imaging, the method comprising the steps of:(a) generating phase encoding gradient pulses for tuning between a 90Â° RF signal and a first 180Â° RF signal, the phase encoding gradient pulses for tuning having opposite polarities to each other and the same amplitudes as those of respectively phase encoding gradient pulses corresponding to the first 180Â° RF signal; (b) adjusting the amplitude of either of the phase encoding gradient pulses for tuning such that a phase before the phase encoding gradient pulses for tuning is the same as a phase behind the phase encoding gradient pulses for tuning and obtaining the adjusted amplitude; and (c) compensating for the phase errors of the phase encoding gradient pulses corresponding to the first 180Â° RF signal using the adjusted amplitude.