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Abstract #0246

ECG/Navigator-Free 4D Whole-Heart Coronary MRA with Simultaneous Visualization of Cardiac Function and Anatomy

Jianing Pang 1,2 , Zhaoyang Fan 2 , Reza Arsanjani 2 , Daniel S Berman 2 , and Debiao Li 2,3

1 Radiology and Biomedical Engineering, Northwestern University, Chicago, IL, United States, 2 Biomedical Imaging Research Institiute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, 3 Bioengineering, University of California, Los Angeles, CA, United States

We have demonstrated a fully self-gated 4D whole-heart imaging technique with high isotropic spatial resolution and near 100% imaging efficiency through respiratory motion correction and retrospective cardiac gating. No ECG or diaphragm navigator is needed. The 4D visualization allows one to determine the precise quiescent period retrospectively. Future efforts will be focused on optimizing of the sequence and reconstruction parameters, as well as comparing the dual-mode reconstruction against existing coronary MRA and cine protocols.

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