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Abstract #3226

RF-induced heating in MRI of tissue around an aneurysm clip near the middle cerebral artery at 7 T under consideration of the Pennes bioheat equation

Yacine Noureddine 1,2 , Oliver Kraff 1 , Mark E. Ladd 1,3 , Karsten Wrede 4 , Gregor Schaefers 2 , and Andreas K. Bitz 3

1 Erwin L. Hahn Institute for MRI, University Duisburg-Essen, Essen, NRW, Germany, 2 MR:comp GmbH, MR Safety Testing Laboratory, Gelsenkirchen, NRW, Germany, 3 Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, BW, Germany, 4 Clinic for Neurosurgery, University Hospital Essen, Essen, NRW, Germany

Synopsis: For safety assessment of metallic aneurysm clips, RF-induced heating resulting from electric field elevations in the tissue is the major concern with respect to patient safety. In this study, RF and thermal simula-tions were conducted to determine RF heating around an aneurysm clip at 7T with a standard RF transmit coil using both a homogeneous and heterogeneous model of the head.

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