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Abstract #2492

Realistic model of the 3T Siemens Connectom birdcage coil and its validation

Mikhail Kozlov1, Kerrin J. Pine1, and Nikolaus Weiskopf1,2
1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 2Felix Bloch Institute for Solid State Physics, Leipzig, Germany

We devised a numerical model of a 123.2MHz 32-rung high-pass whole-body birdcage coil of the Siemens 3T Connectom scanner. The model was developed based on realistic geometrical data for most of coil elements and a reverse engineering approach. Our simulations suggest that RF exposure at level of 3.2W/kg head SAR may result in higher than 20W/kg of SAR10g in the Connectom scanner; (ii) B1+ mapping alone cannot be used for validation of numerical model of whole-body birdcage coil, (iii) developed RF-circuit and 3D-EM co-simulation approach with reverse engineering resulted in a reasonable agreement between simulations and measurements in human subject.

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