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Temporal evolution of brain metabolic substrates differs among major anatomical lobes during the first months of life in human

Introduction H MR spectroscopy (MRS) has been widely used to assess cellular biochemistry and metabolism noninvasively. In addition to providing valuable information to study and monitor neurometabolic disorders in patients, MRS can also provide insight into early brain development. Using single voxel MRS, several studies demonstrated that the concentration of several major metabolites (NAA, Cho, mI) might undergo a period of rapid changes during the first several months of life. It remains unknown, however, if the development of brain metabolic substrates differs among anatomical lobes during this critical period of time of early brain development. In this study, we sought to investigate early brain metabolic development in different functional lobes during the first six months of life using a 3D MRSI approach.