TCB Publications - Abstract

Benno Pütz, Daniel Barsky, and Klaus Schulten. Edge enhancement by diffusion: Microscopic magnetic resonance imaging of an ultra-thin glass capillary. Chemical Physics Letters, 183:391-396, 1991.

PUET91 Diffusion can improve magnetic resonance imaging (MRI) on a microscopic length scale by edge enhancement which acts against diffusional blurring. We demonstrate the edge-enhancement effect and we provide an appropriate mathematical description using Kubo's line shape function formalism. We apply the theory to make specific predictions for edge enhancement in a two-dimensional phantom system. In particular, we determine the corresponding line shape function and use it to reconstruct and MRI image of water in an ultrathin (50${\mu}$m) capillary tube. We explain how a corresponding experiment can be realized with micro-coils capable of receiving adequate free induction decay signals from microscopically small sample volumes.

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