Fig. 3From: Oxygen-15 labeled CO2, O2, and CO PET in small animals: evaluation using a 3D-mode microPET scanner and impact of reconstruction algorithmsEvaluation of PET count values in whole brain obtained by each reconstruction (**P < 0.01). In the 15O-CO2 and 15O-O2 studies, the PET count values were higher in the order of OSEM3D-MAP, OSEM2D, and FBPBack to article page