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Abstract #5583

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

Gianluigi Tiberi1,2, Guo Liu3, Raj Mittra4, and Michela Tosetti1,2

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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