  With today's NMR techniques some microscopic geometry of tissue can still not
be resolved directly. Often, there is also a specific off resonance field
related to this geometry. In this work the impact of these off resonances on
the transverse relaxation is investigated. Therefore the Bloch-Torrey Equation
was numerically solved with a Monte Carlo approach, and the feasibility to
deduce information about the geometry of the tissue from the simulated
transverse magnetization rates was analysed.
