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Abstract #2284

Validation of a new 64MHz RF exposure system for testing medical implants for RF-induced heating according to ASTM-F2182 and ISO/TS 10974

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

To determine the RF-induced heating of implants, it is necessary, that the RF field source used for testing fulfills several requirements. This study introduced the validation of a new developed linear exposure system for testing.
The results for E-Field distributions from numerical simulations are validated experimentally by measuring these E-field distributions. Furthermore, the temperature rise at the 100mm titanium rod is compared with the target values form ISO/TS 10974 Annex I.
The system fulfills the requirements and is suitable for testing active and passive implants for RF-induced heating according to ASTM F2182 and ISO/TS 10974.

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