Abstract #5583

Graphene for MRI Applications at 7T: Opportunities for SAR reduction

Gianluigi Tiberi^1,2, Guo Liu³, Raj Mittra⁴, and Michela Tosetti^1,2

¹Imago7, Pisa, Italy, ²IRCCS Stella Maris Foundation, Pisa, Italy, ³Xidian University, Xidian, People's Republic of China, ⁴University of Central Florida in Orlando, Orlando, FL

SAR management is critical at ultra-high field (UHF) strength where RF field energy deposition in the subject increases and its distribution becomes very inhomogeneous. Here we illustrate simulation results for a test example in order to show how a graphene sheet can be used to obtain a SAR reduction without sacrificing the coil efficiency significantly. Specifically, the presence of the graphene sheet leads a maximum local SAR reduction up to 47%. Thus, from the simulation here shown, it follows that graphene sheets can be successfully used in MRI applications at 7T for enhancing the safety with respect to SAR issue

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