Abstract #1319

Real-Time Slice Tracking for Free-Breathing Cardiac MR Stress Perfusion After Physical Exercise

Tamer A. Basha¹, Sbastien Roujol¹, Kraig V. Kissinger¹, Beth Goddu¹, Sophie J. Berg¹, Warren J. Manning¹,², Reza Nezafat¹

¹Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States; ²Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States

In patients with coronary artery disease, stress CMR perfusion allows assessment of the functional significance of stenosis. In this sequence, respiratory motion would adversely impact the image quality. In this study, we propose to use an optimal leading navigator, placed immediately before each 2D slice acquisition, for tracking of respiratory motion and updating the slice location in real-time for free-breathing CMR perfusion after physical stress.