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Abstract #3813

Direct Coronary Artery Motion Tracking from Cartesian 2D Fat Image Navigator for Motion Corrected Coronary MRA

Keigo Kawaji1, 2, Pascal Spincemaille2, Thanh D. Nguyen2, Nandadeepa Thimmappa2, Mitchell A. Cooper1, 2, Martin R. Prince2, Yi Wang1, 2

1Biomedical Engineering, Cornell University, Ithaca, NY, United States; 2Radiology, Weill Cornell Medical College, New York, NY, United States

Direct measurement of coronary artery motion can be determined from a Cartesian 2D fat image navigator, which uses a spatial-spectral selective excitation to excite the epicardial fat surrounding the coronary arteries. In this study, we demonstrate the feasibility of motion correction on all acquired data in a 3D SSFP CMRA sequence without respiratory gating using coronary artery displacements derived from the 2D Fat image navigator.