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Abstract #4161

Electrodynamics and RF Applicator Concept for Sub-nanosecond Pulsed Thermal Magnetic Resonance

Egor Kretov1, Andre Kuehne2, Eva Oberacker1, Thomas Wilhelm Eigentler1, and Thoralf Niendorf1,2
1B.U.F.F., Berlin Ultrahigh Field Facility, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, 2MRI.TOOLS GmbH, Berlin, Germany

This work presents electrodynamic considerations and an RF applicator concept that permit MR imaging and RF energy focusing inside of the human brain using sub-nanosecond broadband electromagnetic pulses. Such pulses can deposit RF energy in a small, focal area for thermal intervention. To meet this goal proof-of-principle is provided through EMF simulations using a dual-mode RF applicator that combines antipodal Vivaldi antennae with loop elements.

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