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Fig. 1 | EJNMMI Research

Fig. 1

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. 1

Relationship between the radioactivity of 15O-gas flow and the radioactivity concentrations in the brain and lung. Radioactivity in the brain showed a minor change with an increase in the radioactivity count in the lung. The percent changes were 0.7–1.1% (200 MBq/min), 3.1–3.4% (400 MBq/min), and 3.3–3.4% (600 MBq/min) compared with a control (0 MBq/min), respectively

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