Parallel Imaging using a Concentric Rings Trajectory and Application to Hyperpolarized 13 C MR Spectroscopic Imaging
Wenwen Jiang 1 , Michael Lustig 2 , and Peder E.Z. Larson 3
Bioengineering, UC Berkeley/UCSF, Berkeley,
CA - California, United States,
UC Berkeley, Berkeley, California, United States,
and Biomedical Imaging, UCSF, San Francisco, CA -
California, United States
The short-lived effect of hyperpolarization of
poses severe challenges to develop rapid and robust
imaging techniques. The concentric rings trajectory is
such a technique for hyperpolarized
spectroscopic imaging that it is favorable for parallel
imaging for additional acceleration. Preclinical studies
have been performed to evaluate the feasibility of using
concentric rings hyperpolarized
MRSI parallel imaging. Simulation of g-factor maps
demonstrates its advantages of the lower noise
amplification compared to Cartesian counterpart.
Concentric rings trajectory shows great potential to be
applied with parallel imaging.
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