Abstract #1094

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

Kilian A. Dietrich^1,2,3, Sebastian Klüter^2,4,5, Jürgen Debus^{1,2,3,4,5,6,7,8}, Fabian Dinkel⁹, Gernot Echner⁹, Mark E. Ladd^1,3,8, and Tanja Platt^1,2

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

Synopsis

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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