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Abstract #3073

MR driven PET-attenuation correction in presence of metal implants using anatomy context driven decisioning

Dattesh D Shanbhag 1 , Sandeep S Kaushik 1 , Sheshadri Thiruvenkadam 1 , Florian Wiesinger 2 , Sangtae Ahn 3 , Rakesh Mullick 4 , and Ravindra M Manjeshwar 5

1 Medical Image Analysis Laboratory, GE Global Research, Bangalore, Karnataka, India, 2 Diagnostics & Biomedical Technology Laboratory, GE Global Research, Garching, Bavaria, Germany, 3 Functional Imaging Laboratory, GE Global Research, Niskayuna, NY, United States, 4 Diagnostics & Biomedical Technologies, GE Global Research, Bangalore, Karnataka, India, 5 X-ray & Functional Imaging, GE Global Research, Niskayuna, NY, United States

Correction of metal implant areas in MRAC map is considered an important unmet need to guarantee accurate and robust MR-based PET-AC. We demonstrate that use of spatially adaptive phase field based approach and anatomy context driven decisioning can help address metal implant related issues in tissue segmentation and consequently result in improved fidelity of PET reconstruction. Overall, the presented method will allow for more robust and accurate MR-AC and accordingly PET quantification in the presence of metallic implants.

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