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Abstract #3637

Evaluation and Integration of a Dual-Tuned 13C/1H Headcoil into PET/MR Hybrid Imaging

Mark Oehmigen1, Maike E. Lindemann1, Michael Sauer2, Titus Lanz2, and Harald H. Quick1,3

1High Field and Hybrid MR Imaging, University Hospital Essen, Essen, Germany, 2Rapid Biomedical GmbH, Rimpar, Germany, 3Erwin L. Hahn Institute for MR Imaging, University Duisburg-Essen, Essen, Germany

A dual tuned 13C/1H radiofrequency head coil was evaluated towards its potential use in integrated PET/MR hybrid imaging. The amount of PET-signal attenuation due to the head coil was quantified in phantom experiments. A CT-based 3D template ยต-map of the hardware components was generated and evaluated for attenuation correction (AC). The head coil homogeneously attenuates the PET signal by 10%. Attenuation correction homogeneously reduced this attenuation bias to below 1%. These results were confirmed in PET/MR measurements of six patients. The RF head coil was successfully integrated into PET/MR hybrid imaging and can now be used for multinucleus hybrid imaging.

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