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Abstract #5171

Fast consensus optimisation in diffusion MRI modeling

Samuel St-Jean1 and Markus Nilsson1
1Clinical Sciences Lund, Lund University, Lund, Sweden

Synopsis

Keywords: Diffusion/other diffusion imaging techniques, Data Analysis, diffusion modelingThis work explores how to obtain parameter maps from a diffusion MRI model under 30 seconds and how to leverage multiple plausible solutions into a consensus solution using a framework similar to MR fingerprinting. The method is tested with a two compartments model and a mean kurtosis model and compared with a standard optimisation solver. Visual improvements are shown on parameter maps, showing less implausible values than the standard method, but without the use of constraints or assumptions. Access to a distribution of plausible values allows to compute most likely value from this distribution in the case of parameter degeneracies.

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