Abstract #1631

Design of a multimodal (1H MRI/23Na MRI/CT) anthropomorphic thorax phantom: Initial results at 3 T

Wiebke Neumann¹, Florian Lietzmann¹, Lothar R. Schad¹, and Frank G. Zöllner¹

¹Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany

Anthropomorphic phantoms are an essential tool for the validation of image registration algorithms of multimodal data and are important for quantification experiments in ¹H and ²³Na MR imaging. A human thorax phantom was developed with insertable lung, liver, rib cage modules and tracking spheres. Evaluation regarding the tissue-mimicking characteristics with ¹H and ²³Na MR and CT imaging shows that the modules possess T₁, T₂ and HU values comparable to those of human tissues. This work presents an MR- and CT-compatible phantom which allows experimental studies for quantitative evaluation of deformable, multimodal image registration algorithms and realistic multi-nuclei MR imaging techniques.

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