Abstract #0943

A 6.3kg Single-Sided Magnet for 3D, Point-of-Care Brain Imaging

Patrick C McDaniel^1,2, Clarissa Z Cooley², Jason P Stockmann², and Lawrence L Wald^2,3

¹Massachusetts Institute of Technology, Cambridge, MA, United States, ²Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA, United States, ³Harvard Medical School, Boston, MA, United States

MRI, as currently used, requires transporting the patient to the scanner. A truly point-of-care MRI device, possibly even hand-held, could increase the utility of MRI extending its reach and enabling new applications, such as continuous bedside monitoring. In this work, we design and construct a light-weight (6.3kg), single-sided permanent magnet designed to image the cortical region it is positioned over (~8cm x 8cm x 3cm ROI). We describe the magnet optimization and compare the predicted and measured B0 field pattern and validate its imaging potential by acquiring 1D depth profiles in a phantom.

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