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Fig. 2 | EJNMMI Research

Fig. 2

From: Oxygen-15 labeled CO2, O2, and CO PET in small animals: evaluation using a 3D-mode microPET scanner and impact of reconstruction algorithms

Fig. 2

Time activity curves in the brain during the inhalation of 15O-CO2 and 15O-O2 gases. The radioactivity concentrations in the brain were obtained by setting spherical VOIs (10 mm in diameter) on the dynamic PET images. The stability of radioactivity in the brain was maintained at 10 min after the start of 15O-labeled gas inhalation

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