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Abstract #0011

Toward individualized specific absorption rates: Building a surface-based human head model

Mikhail Kozlov1, Benjamin Kalloch1,2, Pierre-Louis Bazin1, Mario Hlawitschka2, Nikolaus Weiskopf1, and Harald E Möller1

1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 2Leipzig University of Applied Science, Leipzig, Germany

We built a prototype of a high resolution surface-based human head model that can be simulated in a reasonable time and evaluated the influence of cerebrospinal fluid (CSF) on field propagation estimates of traveling wave excitation at 297.2 and 400 MHz. Combining neighboring triangular faces located in the same plane into a single one is an approach that achieves simulations of high-resolution human models previously not accessible to tetrahedral-mesh-based solvers. If electrical contact between anatomically connected parts of CSF is correctly considered, CSF was found to partially shield brain tissues from the incident RF field.

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