Abstract #2385
Dark rim artifacts from motion in highly accelerated 3D cardiac perfusion imaging
Haonan Wang 1 , Neal Kepler Bangerter 1 , Eugene Kholmovski 2 , Meredith Ireene Taylor 1 , and Edward V.R DiBella 2
1
Department of Electrical & Computer
Engineering, Brigham Young University, Provo, UT, United
States,
2
Utah
Center for Advanced Imaging Research, University of
Utah, Salt Lake City, UT, United States
Dark rim artifacts are seen in first-pass myocardial
perfusion imaging and impede accurate diagnosis of
ischemia even when the image quality is otherwise
reasonable. Gibbs ringing and cardiac motion are thought
to be the main causes of dark rim artifacts for 2D
multi-slice methods. New 3D acquisitions with high
degrees of undersampling are starting to be used, but
the longer readout may lead to more motion-related
artifacts. In this study, we demonstrate that motion can
create dark rim artifacts such as those observed in a
highly-accelerated 3D acquisition. The artifacts depend
on phase encode orderings and the timing of motion.
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