99mtechnetium
Mostrando 1-12 de 15 artigos, teses e dissertações.
-
1. Influence of Annona muricata (soursop) on biodistribution of radiopharmaceuticals in rats
PURPOSE: To evaluate the effect of hydroalcoholic extract of A. muricata on biodistribution of two radiopharmaceuticals: sodium phytate and dimercaptosuccinic acid (DMSA), both labeled with 99mtechnetium.METHODS: Twenty four Wistar rats were divided into two treated groups and two controls groups. The controls received water and the treated received 25mg/kg/
Acta Cir. Bras.. Publicado em: 2014-03
-
2. Injeção intraoperatória de dextran-500-99m tecnécio para identificação do linfonodo sentinela em câncer de mama
Objetivos: Avaliar a eficácia da injeção intraoperatória para identificação do linfonodo sentinela (LS) em câncer de mama com o uso do Dextran 500-99m-Tecnécio (Tc) e azul patente. Analisar se as doses do radiofármaco, o IMC (índice de massa corporal) e o volume da mama influenciam no tempo para migração ao LS. Metodologia: Estudo prospectivo, re
Publicado em: 2010
-
3. PREPARATION OF LYOPHILIZED KIT OF HYNIC-[Tyr3]-OCTREOTATE AND LABELING STUDIES WITH 99m-TECHNETIUM / Preparo do reagente liofilizado HYNIC-[Tyr3]-Octreotato e estudo de marcação com Tecnécio-99m
The development of radiolabeled molecules with high specificity for an organ or tumor has been contributed to the precise diagnostic in nuclear medicine. Somatostatin labeled derivatives constitutes a particular example of labeled peptide applied in the localization of neuroendocrine tumors. Nowadays, the 111In-DTPA-octreotideo is the radiopharmaceutical app
Publicado em: 2008
-
4. Efeitos biológicos in vitro de agentes físicos utilizados em fisioterapia
O uso de radiobiocomplexos marcados com 99mtecnécio tem contribuído para avanços em Ciências da Saúde. Na marcação desses radiobiocomplexos utiliza-se o redutor cloreto estanoso (SnCl2). Efeitos citotóxicos e genotóxicos do SnCl2 têm sido descritos. Através de modelos experimentais em nível molecular, celular e sistêmico estas alterações podem
Publicado em: 2008
-
5. Marcação de antiveneno escorpiônico com tecnécio-99m e a sua biodistribuição em ratos de 21-22 dias
The frequency that accidents with scorpions occur in some regions of Brazil constitutes a problem of public health, mainly in Minas Gerais and São Paulo. The species Tityus serrulatus, the yellow scorpion, is considered the most venomous of South America, due to high toxicity of its venom, showing serious damage in accidents with children. The immunotherapy
Publicado em: 2007
-
6. Age effects on the pharmacokinetics of tityustoxin from Tityus serrulatus scorpion venom in rats
The pharmacokinetics of scorpion venom and its toxins has been investigated in experimental models using adult animals, although, severe scorpion accidents are associated more frequently with children. We compared the effect of age on the pharmacokinetics of tityustoxin, one of the most active principles of Tityus serrulatus venom, in young male/female rats
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-03
-
7. Combined use of 99mtechnetium-labelled macroaggregates of albumin and 75selenium-selenomethionine in the diagnosis of lung cancer
Critchley, M., Testa, H. J., and Stretton, T. B. (1974).Thorax, 29, 421-424. Combined use of 99mtechnetium-labelled macroaggregates of albumin and 75selenium-selenomethionine in the diagnosis of lung cancer. A two-stage isotope technique has been used in 30 patients with radiographic evidence of circumscribed pulmonary lesions in an attempt to establish the
-
8. Pulmonary deposition and disappearance of aerosolised secretory leucocyte protease inhibitor.
BACKGROUND--The neutrophil elastase inhibitor, secretory leucocyte protease inhibitor (SLPI), is a potential therapeutic tool in inflammatory lung diseases such as cystic fibrosis and pulmonary emphysema. The distribution and disappearance in the lung of aerosolised recombinant SLPI (rSLPI) was investigated in healthy humans and in patients with cystic fibro
-
9. Proximal interphalangeal arthroscintigraphy in rheumatoid arthritis.
Quantitative scintigraphy of proximal interphalangeal joints was performed by a reproducible method using 99m-Technetium in the hands of 40 normal controls and 20 patients with rheumatoid arthritis (RA). The range of the mean uptake varied considerably between proximal interphalangeal (PIP) joints in normal subjects. The mean uptake over PIP joints was not s
-
10. Use of a simple body-monitoring system in a pilot study on workers exposed to unsealed gamma-ray emitting material.
A portable body-monitoring system developed by the board uses two detectors, one for whole-body measurements and one for thyroid measurements. It can detect most commonly used gamma-ray emitting nuclides down to levels below those of interest for radiological protection purposes. The system has been used at 11 establishments including hospitals, universities
-
11. A study comparing SPECT with CT and MRI after closed head injury.
After closed head injury nineteen patients had single photon emission tomography (SPECT) using the lipophilic tracer 99m-Technetium hexamethyl-propylene-amineoxime (HMPAO) to compare the defects shown by CT and MRI. SPECT showed more focal cerebral lesions than either CT or MRI alone or in combination. Most lesions shown by SPECT were not shown by CT or MRI
-
12. Scintigraphy with J001X, a Klebsiella membrane glycolipid, for the early diagnosis of chronic berylliosis: results from an experimental model.
A glycolipid (J001X) isolated from the membrane proteoglycans of a non-pathogenic strain of Klebsiella pneumoniae was developed to bind selectively to macrophages. A scintigraphic technique could thus be developed and applied to an experimental model of lung berylliosis. Six baboons were injected intratracheally with a beryllium metal suspension. Three to 24