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68Ga activity calibrations for nuclear medicine applications in Cuba.
Verdecia, P Oropesa; Rodríguez, L García; Águila, R A Serra; León, Y Moreno; Magaña, Y Jénez; Cassette, P.
Afiliação
  • Verdecia PO; Centro de Isotopos (CENTIS), Avenue Monumental y Carretera La Rada Km 3½, San José de las Lajas, Mayabeque 32700, Cuba. Electronic address: poropesa@centis.edu.cu.
  • Rodríguez LG; Centro de Isotopos (CENTIS), Avenue Monumental y Carretera La Rada Km 3½, San José de las Lajas, Mayabeque 32700, Cuba.
  • Águila RAS; Centro de Isotopos (CENTIS), Avenue Monumental y Carretera La Rada Km 3½, San José de las Lajas, Mayabeque 32700, Cuba.
  • León YM; Centro de Isotopos (CENTIS), Avenue Monumental y Carretera La Rada Km 3½, San José de las Lajas, Mayabeque 32700, Cuba.
  • Magaña YJ; Centro de Isotopos (CENTIS), Avenue Monumental y Carretera La Rada Km 3½, San José de las Lajas, Mayabeque 32700, Cuba.
  • Cassette P; CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), Bât 602 Saclay, F-91191 Gif-sur-Yvette Cedex, France.
Appl Radiat Isot ; 134: 112-116, 2018 Apr.
Article em En | MEDLINE | ID: mdl-29273465
The realization and dissemination of the 68Ga activity measurement unit in Cuba is presented. Firstly, the implementation of the Triple to Double Coincidence Ratio (TDCR) method is described for the calibration of the activity concentration of a 68Ga solution using a Hidex™ commercial liquid scintillation counter and a FORTRAN code developed for the calculation of the 68Ga counting efficiencies in the given measurement system. The relative expanded uncertainty (k = 2) associated with the 68Ga activity concentration obtained with the TDCR method is equal to 2%. With the aim to validate this measurement uncertainty estimate, the method is also applied to an Amersham standard solution of 22Na - a positron emitter with a similar decay mode to the 68Ga disintegration scheme from the point of view of type of emitted particles detected in the measurement system. The observed difference between the measured 22Na activity concentration by the TDCR method and the corresponding reference value traceable to NIST is equal to 0.16%. Outcomes of transferring the 68Ga activity standard, realized with the TDCR method, to the secondary standard radionuclide calibrator Capintec CRC™ 15R and to three radionuclide calibrators used for 68Ga PET applications in a hospital are also shown.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Radioisótopos de Gálio / Serviço Hospitalar de Medicina Nuclear País/Região como assunto: Caribe / Cuba Idioma: En Revista: Appl Radiat Isot Assunto da revista: MEDICINA NUCLEAR / SAUDE AMBIENTAL Ano de publicação: 2018 Tipo de documento: Article País de publicação: Reino Unido
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Radioisótopos de Gálio / Serviço Hospitalar de Medicina Nuclear País/Região como assunto: Caribe / Cuba Idioma: En Revista: Appl Radiat Isot Assunto da revista: MEDICINA NUCLEAR / SAUDE AMBIENTAL Ano de publicação: 2018 Tipo de documento: Article País de publicação: Reino Unido