Figure 6.

Real‐time corrected SV‐MRS is demonstrated using HOS‐DLT shimming with fat‐selective navigators. The subject was instructed to move halfway through a motion‐corrected SV‐MRS experiment in a controlled way. The MRS voxel was placed in the frontal white matter (A, indicated in red) but after motion without correction the voxel was located in the frontal gray matter (B, indicated in yellow), with higher expected glutamate levels. With a correct motion update, the voxel should remain located in the white matter. Segmented reconstructions from the acquisitions before motion (C,E) and after motion with correction (D) show similar glutamate levels, indicating that the motion correction is able to keep the voxel in white matter. After motion without correction, an increase in glutamate is seen (F), indicative of the displacement of the voxel into the gray matter