Figure 3.

Based on the anticipated relationship between CRLB, SNR and linewidth (Eq. 3), the variable spectral quality datasets show a highly significant regression between the individual CRLB (x value) and $\frac{\sigma }{\mathit{Signal}}\sqrt{LW}$ (y value) for NAA, Cr or Ch averaged from the frontal parcel. Color indicates metabolite (blue NAA, red Cr, gray Ch); largest open circles are from 9.6 min, medium open circles 6.0 min, filled circles 4.8 min.