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Abstract #1502

Improving sensitivity and specificity for RS fMRI using multiband multi-echo EPI at 7T

Rasim Boyacioglu 1 , Jenni Schulz 1 , Peter Koopmans 2 , Markus Barth 1,3 , and David Norris 1,3

1 Radboud University, Donders Institute, Nijmegen, Netherlands, 2 FMRIB Centre, University of Oxford, Oxford, United Kingdom, 3 Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany

Recently we have implemented a multiband (MB) multi-echo (ME) sequence to investigate the potential improvement in sensitivity at 7T for resting state (RS) fMRI. In this study we investigated various approaches for cleaning ME and MB ME RS fMRI data to fully exploit the rich temporal information of MB ME data. With two different analysis strategies we have showed that MB acquisition improves functional connectivity compared a standard ME sequence after the removal of non-BOLD related artifactual signals.

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