Fig. 3From: System evaluation of automated production and inhalation of 15O-labeled gaseous radiopharmaceuticals for the rapid 15O-oxygen PET examinationsOperation (a) and trends of the radioactivity concentrations (b), flow rates (c), and calculated radioactivity supplied to the face mask (d) in the sequential 15O2–C15O2 supply protocol. Data are averaged for six independent runs. See textBack to article page