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Abstract #3529

The traveling heads: Qualitative and quantitative evaluation of multicenter brain imaging at 7 Tesla

Maximilian N. Voelker1, Oliver Kraff2, Daniel Brenner3, Astrid Wollrab4, Oliver Weinberger5, Moritz C. Berger6, Simon Robinson7, Wolfgang Bogner7, Christopher Wiggins8, Robert Trampel9, Tony Stöcker3, Thoralf Niendorf5,10, Harald H. Quick2,11, David G. Norris2,12, Mark E. Ladd2,6, and Oliver Speck4,13

1Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany, 2Erwin L. Hahn Institute for Magnetic Resonance Imaging, University of Duisburg-Essen, Essen, Germany, 3German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany, 4Otto-von-Guericke-University, Magdeburg, Germany, 5Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrueck-Center for MolecularMedicine, Berlin-Buch, Germany, 6Medical Physics in Radiology, German Cancer Research Center (dkfz), Heidelberg, Germany, 7High Field MR Center, Department of Biomedical Imaging and Image-guided Therapy, Medial University of Vienna, Vienna, Austria, 8ScanNexus, Maastricht, Netherlands, 9Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 10Experimental and Clinical Research Center, a jointcooperation between the Charité Medical Faculty and the Max Delbrück Center for MolecularMedicine, Berlin, Germany, 11High Field and Hybrid MR Imaging, University Hospital Essen, University Duisburg-Essen, Essen, Germany, 12Donders Centre for Cognitive Neuroimaging, Nijmegen, Netherlands, 13Leibniz Institute for Neurobiology, Magdeburg, Germany

The “traveling heads” is an experiment started in 2014 to assess the comparability and reproducibility of multicenter human brain imaging at 7T. This is of particular interest as 7T MRI is currently being discussed to become a clinical system in the very near future. The number of installations continues to increase, with currently approximately 60 research sites in operation worldwide. As an advantage, this new technology provides higher SNR, yet the artifact-to-noise ratio is also increased. This can influence the image quality severely and may be different at individual UHF sites, where system hardware differences could diminish reproducibility.

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