these scans are often unnecessary and present potentially more risks than benefits. In England, the National Health Service reference cost (2015–2016) for an adult outpatient PET scan is £798. In Australia, as of July 2018, the Medicare Benefits Schedule Fee for whole body FDG PET ranges from A$953 to A$999, depending on the indication for the scan. Quality control The overall performance of PET systems can be evaluated by quality control tools such as the Jaszczak phantom. See also Diffuse optical imaging Hot cell (equipment used to produce the radiopharmaceuticals used in PET) Molecular imaging References External links PET-CT atlas Harvard Medical School National Isotope Development Center—U.S. government source of radionuclides including those for PET—production, research, development, distribution, and information 3D nuclear medical imaging American inventions Medical physics Neuroimaging Radiation therapy Medicinal radiochemistry Armenian inventions