Abstract #2766
Evaluating the Efficiency of Concentric Rings Trajectory for Hyperpolarized 13 C MR Spectroscopic Imaging
Wenwen Jiang 1,2 , Michael Lustig 3 , Martin Uecker 3 , and Peder E.Z. Larson 4
1
Graduate Group in Bioengineering, University
of California, Berkeley, Berkeley, California, United
States,
2
University
of California, San Francisco, San Francisco, California,
United States,
3
Electrical
Enigneering and Computer Science, University of
California, Berkeley, California, United States,
4
Radiology
and Biomedical Imaging, University of California, San
Francisco, California, United States
The short-lived effect of hyperpolarization of
13
C
poses severe challenges to develop rapid and robust
imaging techniques. The concentric rings trajectory is
such a technique for
13
C
spectroscopic imaging because 1) it is as twice
efficient as Cartesian trajectory; 2) it exhibits
robustness to minor system imperfections; 3) it retains
the ability of variable density and good parallel
imaging properties; 4) and it is insusceptible to
pulsatile flow artifacts. Preclinical studies have been
performed for evaluation. Concentric rings trajectory
shows great potential to be applied for accelerated
hyperpolarized
13
C
MRSI.
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