Tissue-inherent relaxation parameters offer valuable information about the arrangement of
capillaries: in an external field, capillaries act as magnetic perturbers to generate local
inhomogeneous fields due to the susceptibility difference of deoxygenated blood and the
surrounding tissue. These field inhomogeneities influence the free induction decay in a
characteristic way, and, conversely, the above tissue parameters can be recovered by multi-
parametric fits of adequate theoretical models to experimentally sampled free induction …