Meeting Banner
Abstract #3329

The Spherical Harmonic Rating: A Metric for B0 Shim System Performance Assessment

Bruno Pinho-Meneses1 and Alexis Amadon1
1Université Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette, France

Different B0 shim system designs are tested on two distinct fieldmap databases for assessment of commonly employed metrics for evaluation of B0 inhomogeneity mitigation. We verify that those metrics might not always be the best choice for performance analysis, as, for a same shim system, they may provide hardly comparable values across sites. We then propose a novel, simple and robust metric for shim system analysis, the Spherical Harmonic Rating, which is shown to provide consistent performance across sites, providing an equivalency of the shim system to a Spherical Harmonics basis.

This abstract and the presentation materials are available to members only; a login is required.

Join Here