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Accelerated MRI at 9.4 T with electronically modulated time-varying receive sensitivities

MPG-Autoren
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Glang,  FM       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Nikulin,  AV       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Bause,  J       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons216029

Heule,  R       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Steffen,  T
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Avdievich,  N       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Scheffler,  K       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://www.dgmp-kongress.de/fileadmin/congress/media/dgmp2022/pdf/DS-ISMRM2022_Abstractband_04.09.pdf
(Zusammenfassung)

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Zitation

Glang, F., Nikulin, A., Bause, J., Heule, R., Steffen, T., Avdievich, N., et al. (2022). Accelerated MRI at 9.4 T with electronically modulated time-varying receive sensitivities. In 24. Jahrestagung der Deutschen Sektion der ISMRM (DS-ISMRM 2022) (pp. 23-29).


Zitierlink: https://hdl.handle.net/21.11116/0000-000B-08F0-D
Zusammenfassung
In this work, it is investigated how electronically modulated time-varying RF receive sensitivities (B1-) can improve parallel
imaging reconstruction. We demonstrate this concept experimentally with a prototype 8- channel reconfigurable receive coil,
for which B1- modulation is achieved by fast switching PIN diodes in the receive loops. With this setup, MR measurements
were performed in both phantom and human subject. Lower reconstruction errors and g-factors were observed for the case
of rapidly switched sensitivities compared to conventional reconstruction with static sensitivities.