Diffusion MRI techniques require at least two different acquisitions separated by a repetition time in order to map mean diffusivity. Thus, dynamic imaging techniques, such as diffusion functional MRI, which aim to measure rapid diffusivity changes, might provide results confounded by T2 changes over the repetition time. This study introduces and validates the INDI (incomplete initial nutation diffusion imaging) framework, which can be used to accelerate diffusion acquisition so that the reference and diffusion weighted images are acquired within a few tens of milliseconds of each other.
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