Figure 3.

Box plots of the analysis for third order shimming summarized over 6 brain regions and 10 subjects. Good MRS volume of interest (VOI) shim homogeneity is traditionally achieved at the cost of a poor homogeneity in the whole brain shim VOI by using an optimization on the MRS VOI alone (1. MRS shim). With an optimization using only the brain shim VOI (2. brain shim) a good whole brain shim VOI homogeneity is achieved at the cost of a compromised MRS shim VOI homogeneity. Using the proposed weighted static higher order shimming with dynamic linear terms (3. HOS‐DLT) both a good voxel homogeneity and a good (but slightly compromised as compared to 2) whole brain homogeneity was reached