Abstract #1466

Numerically optimized design for a low-cost, lightweight 86mT whole-brain magnet

Patrick C McDaniel^1,2, Clarissa Zimmerman 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, Charleston, MA, United States, ³Harvard Medical School, Boston, MA, United States

Whole-brain imaging is a major use of MRI, but the cost and siting requirements of scanners limit its use. Here, we propose a close-fitting, lightweight, whole-brain MRI system to address these limitations. We design the B₀ magnet for this system using a novel optimization approach and compute simulated B₀ maps using 3 magnet modeling approaches. In doing so, we demonstrate the feasibility of realizing an acceptably-uniform whole-brain MRI magnet with mean B₀ of 86mT and weighing under 25kg.

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