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Abstract #1094

Construction of a Tx/Rx body coil on a rotatable patient capsule for MR-guided particle therapy

Kilian A. Dietrich1,2,3, Sebastian Klüter2,4,5, Jürgen Debus1,2,3,4,5,6,7,8, Fabian Dinkel9, Gernot Echner9, Mark E. Ladd1,3,8, and Tanja Platt1,2
1Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, 2Department of Radiation Oncology, Heidelberg University, Heidelberg, Germany, 3Faculty of Physics, Heidelberg University, Heidelberg, Germany, 4National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany, 5Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany, 6National Center for Tumor Diseases (NCT), Heidelberg, Germany, 7German Cancer Consortium (DKTK), Heidelberg, Germany, 8Faculty of Medicine, Heidelberg University, Heidelberg, Germany, 9German Cancer Research Center (DKFZ), Heidelberg, Germany


An RF body coil compatible with particle therapy was built for a clinical MR scanner at 1.5T with a rotatable patient capsule. The attenuation of 1H+ and 12C6+ ions due to inelastic scattering was calculated for different materials to estimate the detrimental effects of the RF coil on the particle beam. The imaging capabilities could be demonstrated with phantom measurements at different flip angles, and corresponding transmit and receive characteristics were analyzed and compared to electromagnetic field simulations for both a horizontal and a tilted position of a phantom.

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