Abstract #1318

Comparison of Reconstruction Methods for Accelerated Cardiac MR Stress Perfusion After Physical Stress with Supine Ergometer

Christophe Schlke¹,², Sbastien Roujol¹, Murilo Foppa¹, Ernest V. Gervino¹, Kraig V. Kissinger¹, Beth Goddu¹, Sophie J. Berg¹, Sebastian Kozerke², Warren J. Manning¹,³, Reza Nezafat¹

¹Medecine, BIDMC / Harvard Medical School, Boston, MA, United States; ²Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland; ³Radiology, BIDMC / Harvard Medical School, Boston, MA, United States

Physiologic stress provides unique information regarding a patients exercise capacity and hemodynamic response to exercise. To perform post physiologic stress CMR perfusion, we employed an MR-compatible supine ergometer mounted on the scanner table. In our experience, coil sensitivity maps are generally corrupted due to patient motion during exercise and significant respiratory motion is encountered during the CMR perfusion acquisition. To allow CMR perfusion with elevated heart rate image acquisition should be shortened. The aim of this study was to compare reconstruction methods for accelerated CMR perfusion immediately post physical stress.