A simple pTx Pulseq extension for pulse-specific B1 shimming

Freudensprung, M; Weinmüller, S; Endres, J; Nagel, AM; Zaiss, M

doi:10.1007/s10334-023-01108-9

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A simple pTx Pulseq extension for pulse-specific B1 shimming

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Zaiss, M
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Freudensprung, M., Weinmüller, S., Endres, J., Nagel, A., & Zaiss, M. (2023). A simple pTx Pulseq extension for pulse-specific B1 shimming. Magnetic Resonance Materials in Physics, Biology and Medicine, 36(Supplement 1): LT53, S68-S69.

Cite as: https://hdl.handle.net/21.11116/0000-000D-D793-A

Abstract

Introduction: MRI scanners, especially ultra-high-field (UHF) scan- ners with a static magnetic field (B0) above 7 T, create new opportunities for medical imaging, such as high SNR and spectral resolution, but also new challenges. One major challenge is the inhomogeneity of the radiofrequency field (B1?), leading to artifacts in the generated images. The usage of parallel transmission (pTx) can address these problems by superimposing the fields of multiple transit coils. An essential factor for pTx development is the ability to test new ideas fast. The Pulseq (1) standard and framework recently enor- mously improved fast MRI sequence prototyping. However, the existing Pulseq Framework does not yet support pTx radiofrequency (RF) pulse definitions. We herein present a simple pTx-Pulseq extension.