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On the Spoiler Gradient in RF-Spoiled Gradient Echo Sequences

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Citation

Leupold, J., Hennig, J., & Scheffler, K. (2008). On the Spoiler Gradient in RF-Spoiled Gradient Echo Sequences. Poster presented at 16th Scientific Meeting and Exhibition of the International Society of Magnetic Resonance in Medicine (ISMRM 2008), Toronto, Canada.


Cite as: http://hdl.handle.net/21.11116/0000-0003-9317-D
Abstract
RF-spoiled gradient echo sequences are widely used in clinical MRI. However, the theoretical description of the measured signal is not trivial, as a pseudo steady state of the voxel magnetisation is built up. We demonstrate that the well known occasional occurrence of ghost artifacts is a direct consequence of the existence of the PSS, and that there is no rigid rule for the needed moment of the spoiler gradient of an RF spoiled gradient echo sequence.