Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Meeting Abstract

A 3-Port Traveling-Wave Antenna in Combination with TIAMO for the Acquisition of Void-Free Brain Images at 9.4 Tesla

MPG-Autoren
/persons/resource/persons83973

Hoffmann,  Jens
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84405

Mirkes,  C
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84213

Shajan,  Gunamony
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

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

/persons/resource/persons84145

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

Externe Ressourcen

http://www.ismrm.org/14/program_files/Session31.htm
(Zusammenfassung)

Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K., & Pohmann, R. (2014). A 3-Port Traveling-Wave Antenna in Combination with TIAMO for the Acquisition of Void-Free Brain Images at 9.4 Tesla. In Joint Annual Meeting ISMRM-ESMRMB 2014.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-33F0-6
Zusammenfassung
Three waveguide modes propagate in a 9.4 T whole-body scanner compared to only two modes at 7 T. While three modes are still insufficient to homogenize the B1 field across larger volumes, a time-interleaved acquisition of two complementary RF shims (TIAMO) and the subsequent sum-of-squares reconstruction of the single images is suitable to achieve whole-brain coverage without signal dropouts. Using simulations, we show that excitation inhomogeneity (max-to-min ratio) can be reduced by a factor of 2 (4) compared to CP mode. Finally, void-free whole-brain traveling-wave MRI at 9.4 T is demonstrated in vivo using a compact, adjustable 3-port antenna.