Automated production of carbon-11 labelled acetate to allow detection of transient myocardial ischemia in man,using positron emission tomography |
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Authors: | G. Del Fioe J. M. Peters L. Quaglia J. L. Piette R. Cantineau C. De Landsheere D. Raets P. Rigo |
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Affiliation: | (1) Centre de Recherches de Cyclotron /C.R.C./, Université de Liège, Sart Tilman, B-4000 Liège, Belgium |
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Abstract: | The synthesis of11C-acetate has been achieved via carbonation of methyl magnesium bromide with11C-labelled carbon dioxide. Using this procedure, 7.4 GBq /200 mCi/ of11CO2 produced by the14N/P,/11C nuclear reaction, was converted, within 20 min into11C-acetate with an activity higher than 2.22 GBq /60 mCi/. Chemical and biologic quality control shows that the product is pure, sterile, and pyrogen-free and therefore suitable for human use. Handling considerable amounts of activity has led us to automate the11C-acetate synthesis. The different parts of the system-programmable controller, sensors, automatic neutralization system-are described in detail. |
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