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Abstract #0642

Stack-of-Spirals CAIPIRINHA Trajectory for Rapid Volumetric Imaging

Weiran Deng 1 , Benjamin Zahneisen 1 , and V. A. Stenger 1

1 University of Hawaii, John A. Burns School of Medicine, Honolulu, HI, United States

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 multiplication sign 0.75 multiplication sign 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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