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Abstract #2232

Subject-specific SAR prediction in adults and children at 7.0T

Gianluigi Tiberi1,2, Mauro Costagli1,2, Laura Biagi2, Alessio De Ciantis3, Nunzia Fontana4, Riccardo Stara5,6, Mark R Symms7, Mirco Cosottini8, Renzo Guerrini3, and Michela Tosetti1,2

1Imago7, Pisa, Italy, 2IRCCS Stella Maris Foundation, Pisa, Italy, 3Meyer Children’s Hospital, Firenze, Italy, 4Dipartimento di Ingegneria dell'Informazione, Pisa, Italy, 5National Institute of Nuclear Physics (INFN), Pisa, Italy, 6Stanford University, Stanford, CA, United States, 7General Electric ASL Scientist (EMEA), Pisa, Italy, 8Department of Translational Research and New Surgical and Medical Technologies, Pisa, Italy

In this study we propose a procedure which allows the prediction of global and local subject-specific SAR exposure for commonly used 7.0T sequences. Prerequisites for such prediction are: sequences’ SAR exposure simulated on the generic anatomic models; subject-specific measured B1+ maps. Validation has been provided through phantom experiment. We observed that: SILENT and FLAIR can be safely used in all subjects, both adults and children; FLAIR is more SAR demanding than SILENT; predicted SAR exposure does not show a significant variation with subject weight.

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