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Abstract #4971

3D Cardiac Cine Imaging Using a 3D Cones Trajectory

Holden H. Wu1,2, Bob S. Hu3, Dwight G. Nishimura2, Michael V. McConnell1

1Cardiovascular Medicine, Stanford University, Stanford, CA, United States; 2Electrical Engineering, Stanford University, Stanford, CA, United States; 3Palo Alto Medical Foundation, Palo Alto, CA, United States

In this work, we present a 3D cardiac cine sequence based on the 3D cones non-Cartesian trajectory which can resolve multiple cardiac phases for a 3D volume within a single breath-held scan. The 3D cones trajectory is a fast sampling method that enables a high degree of scan time reduction. Furthermore, its robust motion and flow properties are beneficial for cardiac imaging. We implement the 3D cones cine sequence using a prospectively cardiac-triggered segmented SSFP sequence. Experimental results demonstrate that 12 cardiac phases can be resolved for 10 contiguous slices within a single 30-second breath-held scan.