Mario O. Malavé1, Nii Okai Addy1, R. Reeve Ingle1, Joseph Y. Cheng1, Corey A. Baron1, and Dwight G. Nishimura1
Motion and eddy current artifacts were investigated
with simulations, metric measures, and in vivo scans for three different cone
acquisition schemes: sequential, multidimensional golden means (MDGM), and
phyllotaxis readout orderings. We
demonstrate the idea of using the 3D cones phyllotaxis acquisition method for
improved motion behavior and low eddy current susceptibility. Also, the
sequential ordering method is shown to be more susceptible to motion artifacts
while the MDGM introduces eddy current artifacts. When using the phyllotaxis design,
the reconstruction demonstrates that a more spread out k-space traversal per heartbeat
is more robust to motion and can be obtained without introducing eddy currents.
