Stack-of-Spirals CAIPIRINHA Trajectory for Rapid Volumetric Imaging

This abstract presents a CAIPIRINHA style sampling using a 3D stack-of-spiral trajectory. By rotating the spiral interleaves along the through-plane direction, the encoding capability of the receiver sensitivities can be better used to improve the g-factor. We show the improved quality of the 3T in vivo human brain images acquired at 2 0.75 0.75mm 3 resolution using this method. In addition, this abstract presents a 3D GRAPPA method that is used to reconstruct the CAIPIRINHA style under-sampled stack-of-spiral data.

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