Daniel Güllmar1, Georg Hille2, Martin Krämer1, Karl-Heinz Herrmann1, Jürgen R Reichenbach1, and Jens Haueisen2
1Medical Physics Group / IDIR, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany, 2Institute of Biomedical Engineering and Informatics, Faculty of Computer Science and Automation, Technical University Ilmenau, Ilmenau, Germany
The
aim of the study was to acquire 3D radially sampled k-space data of a human
torso without breath hold and prospective cardiac triggering. Respiration and
cardiac pulsation were continuously recorded simultaneously with MR imaging
over a time frame of 1 h. Retrospective data motion triggering was used to
reconstruct 8 up to 10 different respiration phases and 12 up to 20 different cardiac
cycle phases, resulting in 96 up to 200 different phase combinations. Image
quality was evaluated based on SNR, CNR and under sampling artifacts.