Abstract #1255

Respiratory Navigator with Adaptive Acceptance Gating Window Size & Fixed Scan Time for Coronary MRI

Mehdi Hedjazi Moghari¹, Alan O'connor¹, Warren J. Manning¹, Reza Nezafat¹

¹Dept. of Medicine (Cardiovascular Div.), Beth Israel Deaconess Medical Center, Harvard Medical Sch., Boston, MA, United States

Compensating for the heart respiratory motion using prospective navigators prolongs scan time with a non-deterministic total acquisition time. In this study, we propose a new adaptive navigator gating where fixed navigator efficiency is used for enforcing temporal changes in the gating window during the scan.