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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