Babayeva, Maryna VolodimirivnaKober, TobiasHerbst, MichaelHennig, JürgenSeeger, MatthiasGruetter, RolfZaitsev, MaximKrüger, Gunnar2013-05-072013-05-072013https://infoscience.epfl.ch/handle/20.500.14299/92029This work investigates the ability of free induction decay (FID) navigators to provide information on rigid head motion. FID navigators were incorporated in a gradient-echo sequence. In parallel, optical tracking data was acquired and served as the ground truth. Three subjects were scanned at 3T with a 32-channel head coil while performing complex head movements. A linear model was trained with a subset of the FID and optical tracking data and verified with the remainder by cross-validation. Following the linear assumption, it can be shown that FID signal changes can quantify all six motion parameters with sub-millimeter and sub-degree precision.Magnetic Resonance ImagingFID navigatorMotion correctiontext::conference output::conference presentation