Method of characterizing molecular diffusion within a body from a set of diffusion-weighted magnetic resonance signals and apparatus for carrying out such a method

摘要

A computer-implemented method of characterizing molecular diffusion within a body from a set of diffusion-weighted magnetic resonance signals by computing a weighted average (AVM) of a plurality of multi-compartment diffusion models (EXM1, EXM2) comprising a same number of compartments, fitted to a set of diffusion-weighted magnetic resonance signals, said weighted average being computed using weights representative of a performance criterion of each of said models; wherein each of said multi-compartment diffusion models comprises a different number of subsets of compartments, the compartments of a same subset being identical to each other.