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Abstract #3871

Specific Absorption Rate Monitor for In-Vivo Parallel Transmission at 7 Tesla

Martijn Anton Cloos1, Nicolas Boulant1, Michel Luong2, Guillaume Ferrand2, Dennis Le Bihan1, Alexis Amadon1

1CEA, DSV, I2BM, NeuroSpin, LRMN, Gif-sur-Yvette, France; 2CEA, DSM, IRFU, SACM, Gif-sur-Yvette, France

It is well established that high local specific absorption rate (SAR) values can occur when using a transmit array at high field. In order to guarantee patient safety without harsh limitations to in-vivo transmit-SENSE applications, subtle SAR monitoring is necessary. In this work we present a SAR monitor at 7 Tesla based on real-time measurement of power going out of each RF amplifier in combination with pre-calculated simulations over a variety of human head models and positions.