Robust 3-D Motion Correction for Spiral Projection Imaging

Kenneth Otho Johnson¹, James Grant Pipe¹

Using spiral planes to fill a 3-D sphere, the motion incurred during a scan can be deduced based on the geometry of how the planes overlap. A new physically based solver is tuned and used to provide robust accurate motion estimates across various scanning parameters that introduce rf coil bias, excessive off-resonance, and image space warping from gradient non-linearities. Estimates for expected accuracy of in-vivo scans are provided, which create a synthesis of multiple datasets, that are registered using an external program.