Abstract #0611
Non-Cartesian Navigation for Subspace 3D Myocardial Perfusion Imaging
Anthony G. Christodoulou 1 , Yijen L. Wu 2 , T. Kevin Hitchens 2 , Chien Ho 2 , and Zhi-Pei Liang 1
1
Department of Electrical and Computer
Engineering, University of Illinois at Urbana-Champaign,
Urbana, IL, United States,
2
Pittsburgh
NMR Center for Biomedical Research, Department of
Biological Sciences, Carnegie Mellon University,
Pittsburgh, PA, United States
We investigate 2D and 3D non-Cartesian k-space navigator
trajectories for low-rank (subspace) myocardial
perfusion imaging, replacing 1D Cartesian navigators
(which are highly sensitive to readout direction). A
rodent ischemic re-perfusion injury animal model was
used for both whole-heart 3D first-pass and delayed
myocardial perfusion imaging in rats. The resulting 3D
images have high spatiotemporal resolution (128 x 128 x
24 matrix size, 0.31mm x 0.31mm x 1.0 mm spatial
resolution, 74 frames per second) and were used for
analysis of both the first-pass of contrast and of late
enhancement.
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