Abstract #3782

Realistic Simulations on the Dark Rim Artifact for Myocardial Perfusion Protocols

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).