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Abstract #2595

Matrix Shimming for Whole Body Gradient Coils

Derek A. Seeber1, Timothy Bergfeld1, Kevin Koch2, Richard Hackett1, David Lee1, William Einziger1

1GE Healthcare, Florence, SC, United States; 2GE Healthcare, Waukesha, WI, United States

A matrix array shim coil system was designed to be included into a widebore gradient coil consisting of 28 channels in a 7 circumferential by 4 axial coil matrix array. The matrix shim coil is designed from multi-layer Kapton circuit boards and is integrated into a gradient coil between the inner and outer gradient coil. Simulations from brain images were analyzed and demonstrate improved performance over a traditional 3rd order harmonic shim set.