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Technical Challenge for Integrated PET/MR
systems: MR-based attenuation correction
•
Segmentation of n=4 tissue
compartments using Dixon MR-
sequences
μ-map for PET AC
T1 TSE + FDG PET
•MR-artifacts will effect µ-map and quantitative PET values
• Other techniques for MR-AC have been presented
• Potential to use of segmented µ-map for RT planning?