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Poster

Pushing the limits: Ultrafast 2D accelerated High Resolution Whole-Head Volumetric Functional Imaging at 7 Tesla

MPG-Autoren
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Nguyen,  T
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://cds.ismrm.org/protected/09MProceedings/files/1_program.htm
(Zusammenfassung)

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ISMRM-2009-03671.pdf
(beliebiger Volltext), 674KB

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Zitation

Nguyen, T., Moeller, S., Goerke, U., Yacoub, E., & Ugurbil, K. (2009). Pushing the limits: Ultrafast 2D accelerated High Resolution Whole-Head Volumetric Functional Imaging at 7 Tesla. Poster presented at 17th Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM 2009), Honolulu, HI, USA.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0013-C571-0
Zusammenfassung
In the tendency towards high-field imaging, three-dimensional (3D) acquisition has potential advantages over its two-dimensional counterpart for functional MRI (fMRI). However, multi-slice 2D-EPI methods remain the conventional sequence in fMRI. Although various advanced 3D schemes have alternatively been applied, they come with individual limitations and are not widely available. The 3D-EPI sequence similarly presents temporal constraints, but holds the potential to be feasible by using the increased signal- and contrast-to-noise ratio of ultrahigh magnetic fields combined with the higher parallel imaging performance feasible at ultra-high fields. A hybrid 3D-EPI then offers the possibility for high 2D acceleration. This potential is exploited in this study at 7 Tesla to overcome the limitations and compare results with 2D acquisition and 1D acceleration. Results show the feasibility of a highly accelerated hybrid 3D-EPI scheme for high resolution whole-head acquisition in high-field fMRI, presenting excellent functional results.