Potential RF-induced heating from an implanted port catheter in direct vicinity of a local transmit head coil at 7T was investigated. The assessment included direct measurements of E-field and temperature in a rectangular head/shoulder phantom filled with tissue simulating liquid as well as numerical SAR and thermal simulations in two human body models. Two different RF coils were used for the evaluation, a custom-made 8-channel head coil and the widely-available Nova Medical head coil. No evidence of RF-induced heating was found. Identical transmit power restrictions apply with or without port for both investigated RF coil types.
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