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Abstract #3644

DEVELOPMENT OF A SET OF GENERIC NUMERICAL BIRDCAGES FOR COMPREHENSIVE EVALUATIONS OF INDUCED RF FIELDS FOR  IMPLANT SAFETY

Eugenia Cabot1, Earl Zastrow1,2, and Niels Kuster1,2

1IT'IS Foundation, Zurich, Switzerland, 2ETHZ, Zurich, Switzerland

A study of in vivo radiofrequency exposure of a group of human models to a reduced set of birdcages that cover clinical scanner variability was performed at 64 MHz, with a view to the assessment of implant safety during magnetic resonance imaging. Finite-difference time-domain simulations were run for combinations of human model/landmark/birdcage for quadrature fed coils representing closed-bore systems with respect to RF exposure. The evaluation of the E-fields for the Tier 3 of TS109741 shows large variations in the tangential E-field values obtained with the different coils.

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