shimming > epi; right: epi > z-shimming. P < 0.05 uncorrected. Fig. 2. Activation map from 6 subjects using z-shimming (left) and normal EPI (right). P < 0.01 uncorrected. Fig. 1. schematic drawing of the volume selective z-shimming slices. Solid lines: actual slices for imaging; solid red lines: slices to apply z-shim; dashed red lines: virtual slices during slice positioning, the actual slice...