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Abstract #3072

Zero TE based PET attenuation correction in the head

Florian Wiesinger 1 , Anne Menini 1 , Sangtae Ahn 2 , Lishui Cheng 2 , Gaspar Delso 3 , Sandeep Kaushik 4 , Ravindra Manjeshwar 2 , and Dattesh Shanbhag 4

1 GE Global Research, Munich, Germany, 2 GE Global Research, Niskayuna, NY, United States, 3 GE Healthcare, Zurich, Switzerland, 4 GE Global Research, Bangalore, India

PET/MR is a novel hybrid imaging modality which promises to influence radiology in the near and long-term future. Despite dedicated and focused research efforts, MR-based PET attenuation correction (MR-AC) as required for quantitative PET is still considered challenging; especially when compared to PET/CT. A particular challenge is the correct characterization of bone; i.e. the human tissue with the highest PET attenuation value but which is difficult to capture by MR. Recently a novel zero TE (ZT) based method has been described for fast and reliable bone depiction and segmentation. Here we investigate the feasibility of ZT-based PET attenuation correction (ZT-AC) in the head.

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