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 Uludag^6,7, Tony Stoecker³, Mathieu Naudin^8,9,10, Rémy Guillevin^8,9,10, 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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