Publication
Estudos de técnicas de concentração da atividade de 99mTc eluído de geradores de 99Mo/99mTc tipo gel
| Summary: | Uma média de 80 % dos radiofármacos usados nas clínicas são marcados com 99mTc por suas propriedades físicas adequadas e fácil obtenção através de geradores de 99Mo/99mTc. A Diretoria de Radiofarmácia (DIRF) do IPEN-CNEN/SP desenvolveu um gerador cromatográfico tipo gel de MoZr com 99Mo produzido pela da reação 98Mo(n,)99Mo que ocorre no reator Nuclear IEA-R1 do IPEN-CNEN/SP. O gel é composto de molibdato de zircônio com volume de eluição de 12 mL com uma atividade de 11100 MBq (300 mCi) produzindo uma concentração radioativa de 925 MBq (25 mCi)/mL. O gerador de fissão produz uma concentração radioativa maior, de 1850 MBq (50 mCi)/mL. Pretende-se com esse trabalho desenvolver um gerador 99 Mo/99mTc tipo gel com a qual se possa eluir 99mTc obtendo-se uma concentração radioativa adequada para atender a demanda de mercado sem perder a qualidade. Foram desenvolvidos dois tipos de sistemas de concentração o único e o em série. O sistema mais adequado para o gerador de 99Mo/99mTc do tipo gel de MoZr estéril e automatizado à vácuo foi o sistema de concentração em série utilizando o cartucho Dionex 2,5 cc/QMA. O gerador de gel é eluído com 10 mL de solução de NaCl 0,1 % sendo o pertecnetato retido no cartucho aniônico QMA e eluído com 4 mL de solução de NaCl de 0,9 %. O processo dura no máximo 30 minutos. A eficiência de eluição do sistema de concentração foi de 90 %. No início de 2009 aconteceu uma crise mundial do abastecimento de 99Mo fazendo com que surgisse a necessidade do desenvolvimento de tecnologias alternativas para a produção de geradores de 99Mo/99mTc utilizando 99Mo produzido por fissão ou o desenvolvimento de um método adequado para estender a vida útil deste gerador. Os resultados deste trabalho mostraram que é possível utilizar o mesmo sistema de concentração desenvolvido para o gerador de gel, o que levará a um fator de concentração de 3 para o 99mTc eluído. |
|---|---|
| Main Authors: | Katia Noriko Suzuki |
| Year: | 2009 |
| Country: | Brazil |
| Document type: | doctoral thesis |
| Access type: | open access |
| Associated institution: | IBICT |
| Language: | Portuguese |
| Origin: | Oasisbr |
Similar Items
article Biodistribution of free 99mTc-ovalbumin and 99mTc-ovalbumin encapsulated in liposomes
by: Alves,Andrea Catão
Published: (2005)
by: Alves,Andrea Catão
Published: (2005)
article Study of gels of molybdenum with cerium in the preparation of generators of 99Mo - 99mTc
by: Moraes,Vanessa
Published: (2005)
by: Moraes,Vanessa
Published: (2005)
article 99Mo/99mTc generators performances prepared from zirconium molybate gels
by: Monroy-Guzman,Fabiola
Published: (2008)
by: Monroy-Guzman,Fabiola
Published: (2008)
article Comparison of relative renal function measured with either 99mTc-DTPA or 99mTc-EC dynamic scintigraphies with that measured with 99mTc-DMSA static scintigraphy
by: Domingues,F. C.
Published: (2006)
by: Domingues,F. C.
Published: (2006)
article Comparison of relative renal function measured with either 99mTc-DTPA or 99mTc-EC dynamic scintigraphies with that measured with 99mTc-DMSA static scintigraphy
by: Duarte, P. S
Published: (2006)
by: Duarte, P. S
Published: (2006)
category Comparisson of 99mTc-DMSA-V, 99mTc-MIBI and [18F]FDG for melanoma detection
by: Buchpiguel, Carlos Alberto
Published: (2007)
by: Buchpiguel, Carlos Alberto
Published: (2007)
school "Avaliação da função renal com estudos radioisotópicos (DTPA-99mTc, DMSA-99mTc e EC-99mTc) em pacientes submetidos à quimioterapia com agentes nefrotóxicos"
by: Benedita Andrade Leal de Abreu
Published: (2006)
by: Benedita Andrade Leal de Abreu
Published: (2006)
article Determination of 99Mo contamination in nuclear medicine patient submitted to diagnostic procedure with 99mTc
by: Stabin, Michael G.
Published: (2005)
by: Stabin, Michael G.
Published: (2005)
article Influence of splenectomy on the biodistribution of technetium-99m dimercaptosuccinic acid (99mTc-DMSA) in rats
by: Açucena,Maria Kadja Meneses Torres
Published: (2008)
by: Açucena,Maria Kadja Meneses Torres
Published: (2008)
article Influence of Splenectomy on the Biodistribution of Technetium-99m Dimercaptosuccinic Acid (99mTc-DMSA) in Rats
by: Açucena, Maria Kadja Meneses Torres
Published: (2013)
by: Açucena, Maria Kadja Meneses Torres
Published: (2013)
article Determination of 99Mo contamination in a nuclear medicine patient submitted to a diagnostic procedure with 99mTc
by: Dantas,Bernardo Maranhão
Published: (2005)
by: Dantas,Bernardo Maranhão
Published: (2005)
article Influence of Alumina Phases on the Molybdenum Adsorption Capacity and Chemical Stability for 99Mo/99mTc Generators Columns
by: Guedes-Silva,Cecilia C.
Published: (2016)
by: Guedes-Silva,Cecilia C.
Published: (2016)
article Linfocintigrafia com dextrano 99mTc (PM=70 000)
by: Branco, JR
Published: (1984)
by: Branco, JR
Published: (1984)
article Optimizing Labeling Conditions for Cysteine-Based Peptides with 99mTc
by: Sabahnoo,Hamideh
Published: (2016)
by: Sabahnoo,Hamideh
Published: (2016)
article Lung clearance of 99mTc-DTPA in systemic lupus erythematosus
by: Dalcin,P.T.R.
Published: (2002)
by: Dalcin,P.T.R.
Published: (2002)
article CYCLOTech - an innovative approach for the reliable production of 99mTc - technetium
by: Metello, Luís F.
Published: (2013)
by: Metello, Luís F.
Published: (2013)
school Estudo da influência da atividade radioativa presente no gerador de 99Mo/99mTc na esterilidade do produto terminado
by: Neuza Taeko Okasaki Fukumori
Published: (2015)
by: Neuza Taeko Okasaki Fukumori
Published: (2015)
article Alternative chromatographic system for the quality control of lipophilic technetium-99m radiopharmaceuticals such as [99mTc(MIBI)6]+
by: Faria,D.P.
Published: (2015)
by: Faria,D.P.
Published: (2015)
article Alternative chromatographic system for the quality control of lipophilic technetium-99m radiopharmaceuticals such as [99mTc(MIBI)6]+
by: Strunz, C. M. C.
Published: (2015)
by: Strunz, C. M. C.
Published: (2015)
school Re and 99mTc organometallic complexes for targeting nitric oxide synthase
by: Oliveira, Bruno Luís Jesus Pinto de, 1979-
Published: (2012)
by: Oliveira, Bruno Luís Jesus Pinto de, 1979-
Published: (2012)
article Linfografia articular com dextrano 99mTC (pm=70 000)
by: Albuquerque, M
Published: (1987)
by: Albuquerque, M
Published: (1987)
article Neovascularization after ischemic injury: evaluation with 99mTc-HYNIC-RGD
by: Faintuch,Bluma Linkowski
Published: (2011)
by: Faintuch,Bluma Linkowski
Published: (2011)
article Translocation of 99mTc labelled bacteria after intestinal ischemia and reperfusion
by: João,Samir Assi
Published: (2004)
by: João,Samir Assi
Published: (2004)
article Neovascularization after ischemic injury: evaluation with 99mTc-HYNIC-RGD
by: Faintuch, Joel
Published: (2011)
by: Faintuch, Joel
Published: (2011)
article Neovascularization after ischemic injury: evaluation with 99mTc-HYNIC-RGD
by: Faintuch, Bluma Linkowski
Published: (2015)
by: Faintuch, Bluma Linkowski
Published: (2015)
article New 99mTc-Labeled Digitoxigenin Derivative for Cancer Cell Identification
by: Munkert, Jennifer
Published: (2023)
by: Munkert, Jennifer
Published: (2023)
article Translocation of 99mTc labelled bacteria after intestinal ischemia and reperfusion
by: João, Samir Assi
Published: (2013)
by: João, Samir Assi
Published: (2013)
groups Using low energy medical cyclotrons to produce 99mTc - Technetium
by: Metello, L. F.
Published: (2013)
by: Metello, L. F.
Published: (2013)
category 99mTc-Technetium Shortage: old problems asking for new solutions
by: Metello, Luis F.
Published: (2015)
by: Metello, Luis F.
Published: (2015)
article Quantification methods for 99mTc-labelled disphosphonates uptake in cardiac amyloidosis
by: Ferreira, José Manuel Belo
Published: (2025)
by: Ferreira, José Manuel Belo
Published: (2025)
article Effect of antimalarial drugs on the bioavailability of the methylenediphosphonic acid labeled with technetium99m (99mTc-MDP) in Wistar rats
by: Holanda,Cecília Maria de Carvalho Xavier
Published: (2006)
by: Holanda,Cecília Maria de Carvalho Xavier
Published: (2006)
article Avaliação de transplantes renais utilizando-se 99mTc-leucócitos mononucleares
by: Souza,Sergio Augusto Lopes de
Published: (2004)
by: Souza,Sergio Augusto Lopes de
Published: (2004)
school Estudo de diferentes materiais adsorvedores para o preparo de sistemas geradores de 99Mo-99mTc e 188W-188Re
by: Paula Regina Corain Lopes
Published: (2009)
by: Paula Regina Corain Lopes
Published: (2009)
article Lesões fotopénicas com 99mTc-HMPAO-leucócitos na osteomielite vertebral
by: Lapa, P
Published: (2001)
by: Lapa, P
Published: (2001)
article The accuracy of 99mTc-DTPA scintigraphy in the evaluation of acute renal graft complications
by: Sanches,Adelina
Published: (2003)
by: Sanches,Adelina
Published: (2003)
article Effects of broccoli extract on biodistribution and labeling blood components with 99mTc-GH
by: Cekic,Betul
Published: (2011)
by: Cekic,Betul
Published: (2011)
article Dose calibrator linearity test: 99mTc versus 18F radioisotopes
by: Willegaignon,José
Published: (2015)
by: Willegaignon,José
Published: (2015)
article Thyroid uptake and scintigraphy using 99mTc pertechnetate: standardization in normal individuals
by: Ramos,Celso Darío
Published: (2002)
by: Ramos,Celso Darío
Published: (2002)
mic Is there a need for attenuation correction in the 99mTc-DMSA scans on pediatric patients?
by: Nogueira, Fábio
Published: (2010)
by: Nogueira, Fábio
Published: (2010)
groups The Use of Annexin-V labeled with 99mTc in the evaluation of cardiotoxicity induced by anthracyclines
by: Miranda, Cecília
Published: (2010)
by: Miranda, Cecília
Published: (2010)
Funded activities
No funded projects found.
Similar Items
-
article Biodistribution of free 99mTc-ovalbumin and 99mTc-ovalbumin encapsulated in liposomes
by: Alves,Andrea Catão
Published: (2005) -
article Study of gels of molybdenum with cerium in the preparation of generators of 99Mo - 99mTc
by: Moraes,Vanessa
Published: (2005) -
article 99Mo/99mTc generators performances prepared from zirconium molybate gels
by: Monroy-Guzman,Fabiola
Published: (2008) -
article Comparison of relative renal function measured with either 99mTc-DTPA or 99mTc-EC dynamic scintigraphies with that measured with 99mTc-DMSA static scintigraphy
by: Domingues,F. C.
Published: (2006) -
article Comparison of relative renal function measured with either 99mTc-DTPA or 99mTc-EC dynamic scintigraphies with that measured with 99mTc-DMSA static scintigraphy
by: Duarte, P. S
Published: (2006)