This work presents a semi-realistic and reusable 3D printed brain phantom to benchmark MR-Electrical-Properties-Tomography reconstruction methods. We show that the hollow compartments of this phantom can be refilled multiple times with different water-based solutions of known electrical properties, which are otherwise not available from in-vivo measurements. Additionally, these brain phantoms can be used inside electromagnetic simulation software, allowing for MR-EPT reconstructions in controlled, simulation settings. In this way, a database comprising of simulated and measured data using these brain models and corresponding 3D printed phantoms will be generated and shared for the first MR-EPT reconstruction challenge.
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