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.