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(a) Central slice of the volumes of interest (VOI) being utilized, overlaid on the T1 map of the digital phantom, with VOI 1 in blue, VOI 2 in red, and VOI 3 in green. T1-weighted images generated from (b) spin echo (SE), (c) gradient echo (GRE), (d) spoiled gradient echo (SP-GRE), (e) inversion recovery spin echo (IR-SE), and (f) inversion recovery gradient-echo (IR-GRE).
