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Abstract #2091

Traveling pulses visit 7T Terra sites: Getting ready for Parallel Transmission in routine use

Franck Mauconduit1, Aurélien Massire2, Vincent Gras1, Eberhard Pracht3, Marc Lapert2, Ilana Leppert4, Christine Lucas Tardif4, Sugil Kim5, Kamil Uludag6,7, Tony Stoecker3, Mathieu Naudin8,9,10, Rémy Guillevin8,9,10, Alexandre Vignaud1, and Nicolas Boulant1
1Paris-Saclay University, CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-yvette, France, 2Siemens Healthcare SAS, Saint-Denis, France, 3German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany, 4Montreal Neurological Institute, McGill University, Montreal, QC, Canada, 5Siemens Healthineers Ltd, Seoul, Korea, Republic of, 6Techna Institute & Koerner Scientist in MR Imaging, University Health Network, Toronto, ON, Canada, 7Center for Neuroscience Imaging Research, Institute for Basic Science & Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Korea, Republic of, 8CHU Poitiers, Poitiers, France, 9LRCOM I3M, University and University Hospital of Poitiers, Poitiers, France, 10Laboratory of Applied Mathematics, UMR CNRS 7348, University of Poitiers, Poitiers, France

Synopsis

Parallel transmission universal pulses (UPs) consist of pre-optimized RF pulse solutions mitigating the RF field inhomogeneity problem for a given RF coil. Optimized offline on a database of representative field maps, they are designed to be robust to intersubject variability and spare the user a cumbersome online calibration. Initially designed for the MAGNETOM 7T Classic system from Siemens Healthineers, with the RF coil being strictly identical, this abstract describes the set of transformations on the pulses necessary to meet the MAGNETOM Terra specifications as well as successful in vivo results already achieved at four Terra sites using the same UPs.

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