FIG. 3.

Measured SFNR, averaged over all subjects and sessions, retrieved from single-echo analysis (M = 1) of acquisitions with reduction factors R = 1–3. Dotted lines represent exponential decay of SFNR with $\mathrm{SFNR}(R,\mathrm{TE})={\mathrm{SFNR}}_0\left(R\right)\cdot \exp (-\mathrm{TE}∕T_2^{\ast })$, assuming average $T_2^{\ast }=65\mathrm{ms}$. Error bars represent the standard deviations over all subjects and sessions.