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Abstract #1134

Mapping the myelin bilayer with short-T2 MRI: Translation to in vivo application

Emily Louise Baadsvik1, Markus Weiger1, Romain Froidevaux1, Christoph Michael Schildknecht1, Benjamin Victor Ineichen2, and Klaas Paul Pruessmann1
1Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland, 2Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Zurich, Switzerland

Synopsis

Keywords: White Matter, Multiple Sclerosis, Myelin imaging

Direct access to myelin content through the detection of signals from the myelin lipid-protein bilayer can be achieved using advanced short-T2 techniques. Here, we translate an existing procedure for mapping the myelin bilayer ex vivo to in vivo human application. Myelin maps are generated by fitting a three-component complex model to multi-TE (20–800µs) data acquired using the HYFI variant of the zero-TE sequence. The presented myelin maps exhibit expected white/grey matter contrast and are of reasonable quality. The step to in vivo represents an important advancement for myelin bilayer mapping as a promising emerging technique.

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Keywords