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Magnetic susceptibility can provide valuable information about chemical composition and microstructural organization in tissues. However, its estimation from the MRI signal phase is particularly difficult, as it depends on both magnetic tissue properties on all length scales. Here we investigate the feasibility of inverting our recently presented model of WM magnetic microstucture to estimate susceptibility. This is done on a digital brain phantom based on actual dMRI measurements of an ex-vivo mouse brain at ultra-high field.
Sandgaard et al. (Wed,) studied this question.
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