In vivo characterization of downfield peaks at 9.4 T: T ₂ relaxation times, quantification, pH estimation, and assignments

Purpose Relaxation times are a valuable asset when determining spectral assignments. In this study, apparent T 2 relaxation times ( ) of downfield peaks are reported in the human brain at 9.4 T and are used to guide spectral assignments of some downfield metabolite peaks. Methods Echo time series of downfield metabolite spectra were acquired at 9.4 T using a metabolite‐cycled semi‐LASER sequence. Metabolite spectral fitting was performed using...