Abstract #3107

Shim Coils Tailored for Correction of B0 Inhomogeneity in the Human Brain (SCOTCH) at Ultra High Field

Bruno Pinho-Meneses¹, Jason Stockmann^2,3, Edouard Chazel¹, Paul-François Gapais¹, Eric Giacomini¹, Franck Mauconduit¹, Alexandre Vignaud¹, Michel Luong⁴, and Alexis Amadon¹

¹Université Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette, France, ²Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, ³Harvard Medical School, Boston, MA, United States, ⁴Université Paris-Saclay, CEA, Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France

A Singular Value Decomposition based Multi-Coil Array for B₀ shimming of the human brain was designed from a database of 100 δB₀ fieldmaps. An optimized 2-layer 36-channel MCA design was obtained and constructed. The system was characterized and measured fieldmaps were used for comparison to expected performance from ideal simulated fields. The static whole-brain and dynamic slice-wise shimming was validated in-vivo and assessed with GRE and EPI acquisitions at 7 Tesla.

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