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Published on: April 9, 2019
The influence of a cellular size distribution on NMR diffusion measurements
Sune Nørhøj Jespersen1, Michael Pedersen, Hans Stødkilde-Jørgensen
1MR-Research Center, Aarhus University Hospital, Brendstrupgaardsvej, 8200 Aarhus N, Denmark. sune@mr.au.dk
Abstract:
In the magnetic resonance community, the usefulness of diffusion-weighted imaging is undisputed. However, the correct interpretation of multicomponent diffusion is not widely agreed upon, and progress in this direction is impeded by several confounding experimental results. It is thus of great importance to resolve possible interfering factors. The objective of the present study is to examine the influence of a cellular size distribution. Using the Kärger equations, numerical calculations show that even substantial cellular size variations induce only small changes in the estimated compartmental diffusion constants and volume fractions.
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