Abstract #3096

Fast Field-Cycling MRI identifies ischaemic stroke at ultra-low magnetic field strength

P. James Ross¹, Lionel M. Broche¹, Mary Joan MacLeod², German Guzman-Guttierez², Alison D. Murray¹, and David J. Lurie¹

¹Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, United Kingdom, ²Acute Stroke Unit, Aberdeen Royal Infirmary, Aberdeen, United Kingdom

In this work we present the first patient images from our home built Fast Field-Cycling MRI (FFC-MRI) scanner. By varying the external magnetic field during the imaging process, FFC-MRI allows us to probe the variation of T₁ with magnetic field, known as “T₁ dispersion”. This T₁ dispersion has potential value as a diagnostic biomarker in a range of conditions. Here we present images demonstrating that endogenous T₁ contrast at 20 mT and below can be used to identify ischaemic stroke.

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