Cardiac Phase Resolved 3D Coronary MRA using Balanced SSFP and a Spiral Trajectory
Kressler B, Nguyen T, Prince M, Wang Y, Spincemaille P
Cornell University, Weill Medical College of Cornell University
A cardiac phase resolved 3D coronary MR angiography sequence is developed using balanced SSFP and a 3D stack of spirals trajectory. A shifting fat saturation scheme is employed to distribute the dead time associated with fat saturation evenly throughout the cardiac cycle. A sliding window reconstruction is performed to generate 16 cardiac phases. The motion of the coronary arteries can be visualized throughout the cardiac cycle, allowing selection of the cardiac phase with the sharpest visualization of the coronary arteries.