"In vivo Magnetic Resonance Spectroscopy and Spectroscopic Imaging (MRS(I)) are unique, indispensable techniques for non-invasive metabolic imaging. Important areas where MRS(I) can make a difference are oncology and neurology, where metabolic changes due to, e.g., tumour formation, can be detected earlier and more sensitively than with morphological imaging modalities alone. Despite its huge prov ...