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| Registros recuperados: 10 | |
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| Fernandes,V.P.I.; Lima,M.C.L.; Camargo,E.E.; Collares,E.F.; Bustorff-Silva,J.M.; Lomazi,E.A.. |
| The objective of this study was to evaluate gastric emptying (GE) in pediatric patients with functional constipation. GE delay has been reported in adults with functional constipation. Gastric emptying studies were performed in 22 children with chronic constipation, fecal retention and fecal incontinence, while presenting fecal retention and after resuming regular bowel movements. Patients (18 boys, median age: 10 years; range: 7.2 to 12.7 years) were evaluated in a tertiary pediatric gastroenterology clinic. Gastric half-emptying time of water (reference range: 12 ± 3 min) was measured using a radionuclide technique immediately after first patient evaluation, when they presented fecal impaction (GE1), and when they achieved regular bowel movements (GE2),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional constipation; Fecal retention; Soiling; Gastric emptying; Scintigraphy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000300293 |
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| Sousa,V.R.A.; Sousa,A.A.; Petroianu,A.; Simal,C.J.R.; Barbosa,A.J.A.. |
| Several studies show the ability of macrophages to remove particles injected into the bloodstream. This function seems to be increased in the presence of acute renal failure. The objective of the present study was to assess the phagocytic function of the main organs (spleen, liver and lung) of the mononuclear phagocytic system in renal and postrenal failures. Fifteen rats (250-350 g) were divided into three groups (N = 5): group I - control; group II - ligature of both ureters, and group III - bilateral nephrectomy. On the third postoperative day, all animals received an iv injection of 1 ml/kg 99mTc sulfur colloid. Blood samples were collected for the assessment of plasma urea, creatinine, sodium, and potassium concentrations and arterial gasometry.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Renal failure; Reticuloendothelial system; Phagocytosis; Macrophage; Scintigraphy. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000900010 |
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| Braga,Francisco José Hossri Nogueira. |
| Tropical diseases affect more people in the world than any other kind of disease, but scintigraphic data on that matter are not so frequent in the literature. Since the geographic regions where such diseases occur are normally very poor, scintillation cameras may not be available. We present a resumed summary of part of what has been done on this subject to-date. Leprosy affects circa 12 million people worldwide and has already been studied by means of the following scintigraphic exams: Gallium-67, 99mTc-MDP or HMDP, 99mTc-colloid or Dextran, 99mTc-DTPA and 99mTc-WBC. Paracoccidiodomycosis is a deep mycosis and such cases may be evaluated by means of Gallium-67, bone scintigraphy, lymphoscintigraphy, hepato-billiary, bone marrow and liver / spleen... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nuclear medicine; Scintigraphy; Tropical diseases; Leprosy; Paracoccidioidomycosis; Blastomycosis; Mucormycosis; Tuberculosis; Neurocysticercosis; Cutaneous and mucous leishmaniasis; Chagas disease. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000500002 |
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| Borges,N.F.; Serakides,R.; Santos,R.G.; Diniz,S.O.F.; Cardoso,V.N.; Ucros,N.S.; Torres,R.C.S.; Cardoso,S.V.; Rezende,C.M.F.. |
| The objective of this work was to monitor the consolidation of the femur after osteosynthesis with a bridge plate associated with the intramedullary pin using scintigraphy. We used seven New Zealand breed male rabbits, at 4 months of age, with a mean weight of 3.5 kg. We performed a three-phase bone scintigraphy with technetium-labeled methylene diphosphonate (99mTc-MDP) before and after surgery, and 20, 50 and 90 days postoperatively. The activity index (AI) was calculated by dividing the average number of uptake counts in the region of the osteotomy by the average number of counts in the corresponding region in the contralateral limb. Radiography was performed before surgery, after surgery, and 15, 30, 45, 60 and 90 days postoperatively. We found a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scintigraphy; Rabbits; Bridge plate; Biological osteosynthesis. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400018 |
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| Duarte,P.S.; Mastrocolla,L.E.; Farsky,P.S.; Sampaio,C.R.E.P.S.; Tonelli,P.A.; Barros,L.C.; Ortega,N.R.; Pereira,J.C.R.. |
| Coronary artery disease (CAD) is a worldwide leading cause of death. The standard method for evaluating critical partial occlusions is coronary arteriography, a catheterization technique which is invasive, time consuming, and costly. There are noninvasive approaches for the early detection of CAD. The basis for the noninvasive diagnosis of CAD has been laid in a sequential analysis of the risk factors, and the results of the treadmill test and myocardial perfusion scintigraphy (MPS). Many investigators have demonstrated that the diagnostic applications of MPS are appropriate for patients who have an intermediate likelihood of disease. Although this information is useful, it is only partially utilized in clinical practice due to the difficulty to properly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fuzzy model; Coronary disease; Scintigraphy; Myocardial perfusion. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100002 |
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| Graça,J.R.V; Macedo,G.M; Palheta Jr,R.C; Gondim,F. de A.A; Nogueira,R.O; Correia,J.M; Rola,F.H; Oliveira,R.B; Souza,M.A.N; Santos,A.A. |
| Sildenafil slows down the gastric emptying of a liquid test meal in awake rats and inhibits the contractility of intestinal tissue strips. We studied the acute effects of sildenafil on in vivo intestinal transit in rats. Fasted, male albino rats (180-220 g, N = 44) were treated (0.2 mL, iv) with sildenafil (4 mg/kg) or vehicle (0.01 N HCl). Ten minutes later they were fed a liquid test meal (99m technetium-labeled saline) injected directly into the duodenum. Twenty, 30 or 40 min after feeding, the rats were killed and transit throughout the gastrointestinal tract was evaluated by progression of the radiotracer using the geometric center method. The effect of sildenafil on mean arterial pressure (MAP) was monitored in a separate group of rats (N = 14). Data... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Intestinal transit; Mean arterial pressure; Scintigraphy; Sildenafil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000100012 |
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| Registros recuperados: 10 | |
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