Patent ID: 6529000
Filing Date: 2003-03-04
Classification: G01R

Abstract:
In a magnetic resonance imaging system, a method of processing a magnetic resonance signal including transient spike noise, the method comprising:receiving an initial signal related to the magnetic resonance signal, the initial signal including a carrier signal modulated by a modulation signal and further including a transient spike noise component; determining an envelope signal indicative of an envelope of the initial signal, such that the envelope is indicative of the modulation signal and further indicative of the transient spike noise component; filtering the envelope signal by way of a high-pass filter to remove information relating to the modulation signal from the envelope signal and to produce a high-pass filtered envelope signal indicative of the transient spike noise component; comparing a comparison signal related to the filtered envelope signal with a threshold to produce a noise indication signal, wherein the comparing occurs subsequent to the filtering; and modifying the magnetic resonance signal based upon the noise indication signal.