Figure 3.

Surface maps demonstrate the effects ESP and $T_2^{*}$ on a single-peak signal at SNR=20 have on the uncertainties for chemical shift (a), $T_2^{*}$ (b), and amplitude (c). Areas below the black line represent where the ETL ${\mathrm{TE}}_{\max }>T_2^{*}$. This causes an increase in uncertainty, which is more evident on (b) and (c). ESP>1.0 ms can provide low uncertainties as long as the ESP is short enough not to sample above the $T_2^{*}$ of the tissue.