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Abstract #1167

Full-FOV, Whole-brain, Half-millimetre Resolution fMRI at 7T using Accelerated multi-band EPIK with TR-external Phase Correction

Seong Dae Yun1 and N. Jon Shah1,2,3,4

1Institute of Neuroscience and Medicine 4, INM-4, Forschungszentrum Juelich, Juelich, Germany, 2Institute of Neuroscience and Medicine 11, INM-11, JARA, Forschungszentrum Juelich, Juelich, Germany, 3JARA - BRAIN - Translational Medicine, Aachen, Germany, 4Department of Neurology, RWTH Aachen University, Aachen, Germany

Ultra-high spatial resolution fMRI can identify brain activations with precise spatial localisation. There have been numerous attempts to achieve a sub-millimetre resolution in fMRI by using reduced- or full-FOV imaging. Although the reduced-FOV scheme can achieve more enhanced resolution than the full-FOV scheme, the restricted FOV often limits its use for more general functional studies. This work aims to present a novel half-millimetre resolution fMRI method which can also provide full-FOV and whole-brain coverage. The method was developed based on EPIK and a TR-external EPI phase correction scheme. Here, the above configuration was employed for exemplary finger-tapping fMRI at 7T.

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