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Abstract #1480

Multi-Coil Array for Combined Imaging and B0 Shimming in a Portable Head-Only Scanner

Sebastian Theilenberg1, Yun Shang1, Naoharu Kobayashi2, Ben J. Parkinson3, and Christoph Juchem1,4

1Department of Biomedical Engineering, Columbia University in the City of New York, New York, NY, United States, 2Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, United States, 3Robinson Research Institute, Victoria University of Wellington, Wellington, New Zealand, 4Department of Radiology, Columbia University in the City of New York, New York, NY, United States

To improve accessibility of MRI and to enable advanced studies on motor coordination, we are part of the U01EB025153 collaboration to develop a compact 1.5 T head-only scanner enabling free limb movement. The compact size of the magnet significantly increases B0 inhomogeneity, necessitating the use of novel imaging concepts robust to B0 inhomogeneities that in turn require advanced B0 field modeling capabilities. Here, we introduce a 31-coil Multi-Coil (MC) design capable to generate linear and non-linear MR image encoding fields as well as complex B0 shim fields with low space and power requirements.

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