Fig. 5.

True and measured compartment T₁ values calculated from calibrated ISMRM/NIST phantom data for the optimized 8-measurement protocol without (a) and with (b) the presence of a fat suppression pulse. The dashed line is the identity line whereas the red line is the least-squares fit line. The fat saturation pulse (c) centered on the lipids chemical shift nevertheless excites ~2% of the water signal for every slice-selective excitation pulse. The deviation from the identity line is larger in the fat suppression case.