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Regional distribution of 2-deoxy-2[18F]-fluoro-D-glucose for metabolic imaging using positron emission tomography.
International Journal of Cardiac Imaging 1994 June
Radiopharmaceutical availability is one of the reasons dissemination and growth of clinical PET imaging remains problematic. A 'regional' cyclotron-radiopharmacy facility for the production of the positron emitting radionuclide 2-deoxy-2[18F]-fluoro-D-glucose (FDG), has been operational for over 2 years and supplies this radiopharmaceutical to five camera facilities, four distant and one on-site. The RDS 11 MeV cyclotron is capable of dual bombardment of targets yielding 60 GBq (1600 mCi) of F-18 in a 90 minute period. F-18 labelled FDG is produced by an automated synthesis module yielding 22.2 GBq (600 mCi) FDG. The PET radiopharmacy is required to perform extensive quality assurance activities including a number of tests to insure final product and safety. [18F]FDG is shipped in unit dose vials, 6 ml, two per shielded container, meeting Department of Transportation (DOT) specifications (43 x 43 cm cubes, styrofoam packing, 22 lb. lead shield). This adheres to regulations requiring no more than 200 millirem per hour (mR/Hr) exposure at the container surface, and 10 mR/hr at a distance of 1 meter. Total transport time, utilizing private air and ground couriers, to distant facilities is approximately 100-120 minutes. Based on patient scheduling and protocol used, allowing 45-60 minutes between dose administrations, and availability of 22.2 GBq (600 mCi), 20-22 unit doses can be supplied, divided and shipped in a number of ways. The regional-commercial distribution of PET radiopharmaceuticals, specifically [18F]FDG, is feasible. This provides availability of metabolic imaging at sites distant to radiopharmaceutical production.
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