Eddy current optimized phase encoding schemes to reduce artifacts in balanced 
SSFP imaging

Scheffler, K; Hennig, J

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Eddy current optimized phase encoding schemes to reduce artifacts in balanced SSFP imaging

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https://cds.ismrm.org/ismrm-2003/ismrm03.pdf
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Scheffler, K., & Hennig, J. (2003). Eddy current optimized phase encoding schemes to reduce artifacts in balanced SSFP imaging. In 11th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2003) (pp. 68).

Cite as: https://hdl.handle.net/21.11116/0000-0005-778F-5

Abstract

Balanced SSFP is very sensitive to spin dephasing induced be different mechanisms within the completely balanced gradient scheme. A source of imperfections are eddy currents that change from excitation to excitation produced by the changing phase encode (PE) gradients. Rapid and large changes of the encoded k-space position as seen in conventional 3D PE trajectories generate signal instabilities and fluctuations that lead to image artifacts. Optimized PE trajectories are proposed with minimal changes of k-space position from excitation to excitation.