Camila Munoz1, Radhouene Neji2, Peter Weale2, Rene Botnar1, and Claudia Prieto1
1Department of Biomedical Engineering, King's College London, London, United Kingdom, 2MR Research Collaborations, Siemens Healthcare, Frimley, United Kingdom
remains a challenge for coronary MR angiography at 3T. Here we propose an
inline 2D translational motion correction scheme using an image-based navigator.
Low-resolution navigators are acquired at each heartbeat by spatially encoding
the start-up echoes of an ECG-gated gradient echo sequence, allowing for 100% scan
efficiency. Results from healthy volunteers show that motion correction
improves visualization of the right and left anterior descending coronary
arteries. The proposed scheme potentially allows for performing a comprehensive
diagnosis of coronary artery disease by acquiring both diagnostic and motion information
from MR, that can also be used to correct PET data.