Measuring method of spatially resolved magnetic resonance spectroscopy

Abstract

A method of spatially resolved magnetic resonance spectroscopy according to the principle of chemical shift imaging (=CSI) in which, through application of an excitation pulse, spins in a measuring volume are excited and a metabolite signal thereof is read out, wherein between the excitation pulse and the recording of the signal, spatial encoding of the signal is effected by means of a gradient pulse in at least one spatial direction, wherein said spatial encoding gradient is varied between each recording step, such that one obtains spatial allocation of the recorded signals in the partial volume of the measuring volume, is characterized in that a reference signal is recorded in addition to the signal of the recorded metabolites, which comprises the same spatial encoding as the metabolite signal, wherein the recording of the two signals is effected in a convoluted manner. This method enables the correction of the local effects without considerable increase of the recording time in order to obtain in this manner standardized and comparable results independently of occurring imperfections during the recording.

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