Method for nuclear magnetic resonance imaging and relaxometry

摘要

A method has been conceived for acquisition and accumulation of a magnetic resonance signal in the presence of signal instability due to field or frequency instability. After submitting an element to be examined to a suitable experiment, a sequence of pulses for example, for measurement of an echo signal (Hahn-echo experiment), the detected signal for each τ is broken up into its Cartesian co-ordinates in an IQ plane, the module of the components is calculated and then the calculated modules are added to each other.By operating on the sum of the calculated modules for each τ in order to at least partly remove the introduced noise, interpolation of the calculated points can be carried out so as to determine a course representative of the acquired and accumulated parameter as a function of τ.