B0 Shimming in 3T Bilateral Breast Imaging with Local Shim Coils

Seung-Kyun Lee¹, Lorne Hofstetter¹, Ileana Hancu¹

We show that bilateral breast shimming can be significantly improved by employing local shim coils. A pair of Helmholtz-like coils compensate for the left-right B0 field difference, on the order of 100 Hz, caused by the inherently asymmetric positioning of heart and lungs.