Finya Ketelsen1,2, Kevin Kröninger2, and Gregor Schaefers1,3
1MRI-STaR - Magnetic Resonance Institute for Safety, Technology and Research GmbH, Gelsenkirchen, Germany, 2TU Dortmund University, Dortmund, Germany, 3MR:comp GmbH, Testing Services for MR Safety & Compatibility, Gelsenkirchen, Germany
1MRI-STaR - Magnetic Resonance Institute for Safety, Technology and Research GmbH, Gelsenkirchen, Germany, 2TU Dortmund University, Dortmund, Germany, 3MR:comp GmbH, Testing Services for MR Safety & Compatibility, Gelsenkirchen, Germany
This
study introduced the validation of a new RF field source for testing implants
for RF-induced heating according to ASTM F2182 and ISO/TS 10974. Its ability to
produce different homogeneous fields over a large area qualifies it for testing
all kinds of active and passive implants.
Fig. 5: This figure shows the measured temperature rise
values after six minutes divided by the square of the incident E-field at each
position and the target values from Annex I1.
Fig. 4: This figure shows the measured Erms-field
distributions, a) Erms-field at 0° phase, c) Erms-field
at 180° phase and the deviation between measurement and simulation in
b) 0°phase and d) 180° phase.
