On the Spoiler Gradient in RF-Spoiled Gradient Echo Sequences

Leupold, J; Hennig, J; Scheffler, K

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On the Spoiler Gradient in RF-Spoiled Gradient Echo Sequences

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https://cds.ismrm.org/ismrm-2008/files/1_program.pdf
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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.

引用: https://hdl.handle.net/21.11116/0000-0003-9317-D

要旨

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.