Multi-component T 2 * mapping in the calf muscle during plantar flexion using a multi-echo radial GRE sequence

The aim of the present study was to apply a radial multi-echo gradient-echo (GRE) sequence during dynamic exercising for continuous quantitation of the effective transverse relaxation time constant (T2*) enabled by the increased robustness of radial trajectories against motion artefacts. Load-induced T2*-changes were determined based on mono-exponential and multi-component signal fitting of data obtained in a human calf during plantar flexion.

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