Fig. 2From: Validation of the physiological background correction method for the suppression of the spill-in effect near highly radioactive regions in positron emission tomographyThe schematic 2D representation of the technique used to extract the voxel values around the edges of the simulated bladder. a represents the procedure for extracting the voxel values, while b shows a 2D representation of all the dilated 3D regions around the bladder (i.e. the white region) from 2 voxels to 10 voxels with a step size of 2 voxelsBack to article page