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Abstract #2286

Slab Thickness Calibration for Selective 3D-MSI

Kevin M Koch1 and S S Kaushik1

1Radiology, Medical College of Wisconsin, Milwaukee, WI, United States

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.

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