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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