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 Niendorf^5,10, Harald H. Quick^2,11, David G. Norris^2,12, Mark E. Ladd^2,6, and Oliver Speck^4,13

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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