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Abstract #3107

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

Bruno Pinho-Meneses1, Jason Stockmann2,3, 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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