Utilización de un ciclotrón para la producción de radionucleidos emisores de positrones
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Martí-Climent J, Peñuelas I, Calvo R, Giménez M, Gámez C, Richter J. Utilización de un ciclotrón para la producción de radionucleidos emisores de positrones. Rev Esp Med Nucl. 1999 Aug;18(4):261-267
The experience acquired by our center during the first two years of using cyclotron 18/9 (IBA) dedicated to the production of clinical positron emission radionuclides is described. The cyclotron performance characteristics, production yields, quality control and synthesized radiotracers are analyzed. Cyclotron makes it possible to produce up to 3,300 mCi of 18F-, 270 mCi of 18F2, 3,100 mCi of 11C, 502 mCi of 13N (in 120, 60, 35 and 20 minutes respectively) and 540 mCi/min of 15O. In our center, about 85% of the PET studies are performed with 18F-FDG, whereas the remaining are done with 15O-water, 11C-bicarbonate, 11C-methionine, 13N-ammonia or 18F-. Cyclotron is included in the Radiopharmacy Unit of our PET facility and is subjected to a global quality control program. Follow-up of the bombardment parameters and periodic verifications of the cyclotron performance have made it possible to prevent equipment functioning problems, increase mean time between stoppage and decrease downtime. We conclude that cyclotron has high production capabilities and allows enough flexibility for a clinical and research positron emission tomography center; furthermore, it can also be used for regional distribution of 18F-FDG to satellite PET centers.

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