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. Quick^1,3

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 µ-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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