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Meeting Abstract

B1-Mapping with the Transient Phase of SSFP

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Citation

Ganter, C., Settles, M., Scheffler, K., & Bieri, O. (2011). B1-Mapping with the Transient Phase of SSFP. In 19th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2011).


Cite as: http://hdl.handle.net/21.11116/0000-0002-4C33-0
Abstract
In rapid SSFP sequences, the approach toward dynamical equilibrium (transient phase) typically consists of a smooth decay and a superimposed damped oscillation. Recent theoretical studies for the FID signal of unbalanced SSFP showed that the frequency of the latter is closely connected to the actual flip angle α and depends only weakly on tissue parameters. In this work, we show that fast and accurate B1-mapping, based on a frequency analysis of the transient phase of SSFP, can be implemented in a conceptually simple and flexible manner.