T2* measurements in the abdomen are often corrupted by
macroscopic magnetic susceptibility effects from air in the lung and bowel. We
show that sensitivity to linear B0 variations can be eliminated by tailoring
the 2D slice profile appropriately and truncating the echo train where the
phase difference between adjacent voxels within or across slices exceeds
$$$\pi/2$$$. This improves T2* accuracy without the need for post hoc
corrections. When compared with a conventional approach, the proposed technique
demonstrates reduced sensitivity to B0 inhomogeneity in the liver caused by magnetic
susceptibility differences in the lung.
