Fig. 7From: Evaluation of three methods for delineation and attenuation estimation of the sinus region in MR-based attenuation correction for brain PET-MR imagingBias atlas images showing the voxel-by-voxel relative difference between MRAC and CTAC based PET images in non-TOF and TOF reconstruction. Non-TOF reconstructions are represented with: a bulk, c cuboid and e template method. TOF reconstructions are represented with b bulk, d cuboid and f template method. Local overestimations are seen with the bulk method whereas overestimations are reduced with the proposed methods and with TOFBack to article page