Pedro Ferreira1, Peter Gatehouse2, Peter Kellman3, David Firmin2
1Imperial College London, London, UK; 2Royal
Brompton Hospital, London, UK; 3National Institutes of Health,
Bethesda, MD, USA
Motion and Gibbs artifacts have been previously shown separately as probable sources of Dark-Rim-Artifacts (DRA) in myocardial perfusion imaging. Their relative importance through the cardiac cycle for a range of typical perfusion protocols has not been fully examined. Therefore, the appearance of Gibbs, motion, and T1 and T2* k-space modulation were studied by numerically simulating typical perfusion protocols with different sequences (GRE,bSSFP,h-EPI).