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Poster

Fast measurement of B1+ using the NO2RAGE pulse sequence

MPG-Autoren
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Metere,  Riccardo
Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Lenich,  Tobias
Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Pine,  Kerrin
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Möller,  Harald E.
Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Zitation

Metere, R., Lenich, T., Pine, K., & Möller, H. E. (2018). Fast measurement of B1+ using the NO2RAGE pulse sequence. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2018, Paris, France.


Zitierlink: https://hdl.handle.net/21.11116/0000-0004-C418-4
Zusammenfassung
The knowledge of the spatial distribution of the transmit field of the coil, B1+, is essential in a number of MRI applications, particularly at higher field strength. SA2RAGE is a recently developed technique for B1+ mapping, derived from the MP2RAGE scheme. The sensitivity to B1+ is obtained from a preparation pulse and optimized delays between block gradient acquisitions. Here, we propose a much faster (but otherwise comparable) method, referred to as NO2RAGE, where the B1+ sensitivity is obtained by omitting the preparation, nullifying the delays, and adjusting the other sequence parameters. The technique compares favorably against other in vivo methods.