Motion characterization and compensation in magnetic resonance imaging with radial trajectories

Magnetic resonance imaging (MRI) is a powerful imaging modality for noninvasive diagnostics and basic research applications. A plethora of pulse sequences provide access to unique contrast mechanisms, and qualitative and quantitative measures. Additionally, it uses no ionizing radiation, making it ideal for screening, longitudinal studies, and pediatric imaging. Unfortunately, MRI is hindered by long acquisition times due to physical constraints and stringent sampling requirements. This limitation increases costs and introduces challenges for imaging moving objects.