Iodine Radioisotopes
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Immunophenotype characterization of poorly differentiated breast carcinomas / Quantificação do RNAm de tireoglobulina em sangue periférico de pacientes com câncer diferenciado de tireóide: acompanhamento a longo prazo
The differentiated thyroid carcinoma (DTC) encloses 95% of all thyroid malignant disease. In USA, it increased 2,4 times in recent years (1973- 2002). The treatment includes total thyroidectomy, ablation with radioiodine (RAI) followed by TSH suppression with L-Thyroxine. The cancer recurrence occurs in 20% of the cases. Periodic evaluation through imaging e
Publicado em: 2009
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2. Aplicação de método Monte Carlo para cálculos de dose em folículos tiroideanos
The Monte Carlo method is an important tool to simulate radioactive particles interaction with biologic medium. The principal advantage of the method when compared with deterministic methods is the ability to simulate a complex geometry. Several computational codes use the Monte Carlo method to simulate the particles transport and they have the capacity to s
Publicado em: 2008
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3. Evolução bioquímica através de medidas seriadas de antígeno prostático específico (PSA) de pacientes submetidos a braquiterapia com implante de sementes de 125I no tratamento do adenocarcinoma de próstata / Biochemical outcome of patients with prostate adenocarcinoma treated with 125I seed implantation measured by serial dosages of prostate specific antigen
INTRODUÇÃO: Nos pacientes com câncer de próstata considerados de baixo risco, a braquiterapia de baixa taxa de dose (BBTD) utilizando sementes de 125I é uma excelente opção, com seguimento após o tratamento, devendo ser feito por meio de medidas seriadas de PSA. A avaliação de falha bioquímica após radioterapia, definida por elevação do PSA, te
Publicado em: 2008
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4. STUDY OF IMPORTANT PARAMETERS ON THE IRRADIATION OF 124Xe, TO IMPROVE THE PRODUCTION OF 123I WITH HIGH PURITY USING THE CYCLONE-30 CYCLOTRON AT IPEN-CNEN/SP / Estudo de parâmetros relevantes na irradiação de 124-Xe, visando a otimização na obtenção de 123-I ultra puro no Ciclotron Cyclone-30 do IPEN-CNEN/SP
The development of diagnosis equipment and therapy procedures in nuclear medicine depends on the availability of commercial radioisotopes. IPEN is the most important institution that provides radioisotopes for national market. In order to achieve this function, IPEN had invested in the acquisition of a 30 MeV Cyclone-30 cyclotron to produce mainly 18F, 67Ga,
Publicado em: 2006
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5. Instrumental neutron activation analysis with Compton suppression for the evaluation of foodstuff composition / "Supressão Compton na análise por ativação neutrônica instrumental de produtos agrícolas destinados à alimentação humana"
Instrumental neutron activation analysis (INAA) is a good option for studying chemical composition of food, allowing the simultaneous determination of several elements. However, the incomplete deposition of gamma-ray energies in the detector crystal due to Compton scatter can elevate the spectrum baseline making difficult the determination of some elements.
Publicado em: 2004
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6. Surface Antigens on Cat Leukemic Cells Induced by Feline Leukemia Virus: Area Density and Antibody-Binding Affinity
The binding of autologous bovine antibody to feline leukemia virus-induced cell surface antigens (FeCSA) on cat leukemia cells was studied by performing certain titration procedures with a mixture of immune and normal sera labeled with different iodine radioisotopes (paired-label technique). By using plots of titration data which conformed to linear equation