Images from PET/MR of a patient (Group
) with large positive bias in regions just outside the artifact. (A) Original attenuation map. (E) Attenuation map after inpainting. (B,F) corresponding PET images following MR-AC. Note the recovery of PET signal in the dental region. (C) The mean relative difference image (ε
rel) for (B-F) in relation to (F). (G) Absolute difference image (ε
abs) for (B) to (F). Note the positive SUV region in the masticatory muscles. (D) A and C fused. (H) T1w MR image. Arrows point to the masticatory muscle.