Slab selection is a crucial component of 3D-MSI metal
artifact reduction sequences, due to the need to reduce phase-encoded fields of
view for body imaging applications in the hip, spine, and shoulder. However, existing commercial 3D-MSI sequences
are prone to signal loss at the edges of prescribed slabs. Here, we explain the source of this signal
loss and demonstrate a calibration algorithm that can be used to reduce this
slab-boundary signal loss in 3D-MSI. The presented methods are demonstrated on
a calibrated 3D-MSI total hip replacement dataset acquired at 1.5T.