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Abstract #1767

Rapid Free-breathing 3D SPirAl Respiratory and Cardiac Self-gated (SPARCS) Cine Acquisition Using an Undersampled Stack-of-Spirals

Xitong Wang1, Junyu Wang1, Ruixi Zhou1,2, and Michael Salerno1,3,4,5
1Department of Biomedical Engineering, University of Virginia, Charottesville, VA, United States, 2School of Artificial Intelligence, Beijing University of Posts and Telecommunications, Beijing, China, 3Department of Medicine, Stanford University, Palo Alto, CA, United States, 4Department of Medicine, University of Virginia, Charottesville, VA, United States, 5Department of Radiology, University of Virginia, Charottesville, VA, United States


Cardiac cine images are the gold standard techniques for analyzing cardiac function. Clinical breath-held ECG-gated Cartesian cine imaging requires 10-12 breath-holds to cover the left ventricle. Our group has developed a continuous-acquisition respiratory and cardiac self-gated cine sequence (SPARCS) for free-breathing cardiac function acquisition using 2D spiral acquisition can suffer from through-plane motion. Thus, we develop a rapid 3D self-gated cine technique using a variable density undersampled stack of spiral gradient echo sequence to provide 3D coverage of the ventricle enabling thinner slice acquisition and improved robustness to through-plane motion.

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