ZTE acquisition is combined with spin-echo burst encoding for quiet T2 mapping. An initial ZTE excitation train encodes multiple 3D radial spokes, which get refocused by reversing the gradients. A double spin-echo leads to T2 decay, from which T2 maps are extracted by exponential fitting. Accuracy is validated in the Eurospin TO5 relaxation phantom, while in vivo feasibility is demonstrated by T2 mapping in healthy brains.
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