Radionuclide Imaging
Mostrando 13-24 de 46 artigos, teses e dissertações.
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13. Contributions of perfusion and myocardic cintilography function with double isotope and low dobutamina dose validity: evaluation of cellular integrity and contractile reserve in viable myocardium identification / Contribuições da cintilografia de perfusão e função miocárdica com duplo isótopo na vigência de baixa dose de dobutamina: avaliação da integridade celular e reserva contrátil na identificação do miocárdio viável
Em pacientes portadores de insuficiência coronariana com prognóstico desfavorável pela presença de disfunção ventricular significativa, a pesquisa de viabilidade miocárdica traz contribuições ao predizer a possibilidade de recuperação contrátil após revascularização. Os segmentos miocárdicos com disfunção contrátil por hipoperfusão podem
Publicado em: 2007
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14. Radioisotopic evaluation of renal function with 99mTc-DTPA, 99mTc-DMSA and 99mTc-EC in patients underwent chemotherapy with nephrotoxic agents / "Avaliação da função renal com estudos radioisotópicos (DTPA-99mTc, DMSA-99mTc e EC-99mTc) em pacientes submetidos à quimioterapia com agentes nefrotóxicos"
Pacientes com diagnósticos oncológicos diversos sob terapia com agentes nefrotóxicos, foram avaliados através de procedimentos radioisotópicos, em três momentos diferentes. Os achados radioisotópicos foram comparados com as avaliações laboratoriais rotineiras. Não mostraram alterações estatisticamente significativas os seguintes parâmetros: uré
Publicado em: 2006
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15. "Valor disgnóstico e prognóstico dos métodos de imagem na fratura de estresse da tíbia: correlação clínico-radiológica" / Diagnostic and prognostic value of image methods in tibia stress fractures : clinical-radiological correlation
A major problem in athletes with stress fractures is the length of resting time required for complete recovery. No imaging tool has been capable of offering objective data regarding the appropriate recovery time in athletes with stress fractures. Two groups of athletes were included in our study: Group I consisted of 21 athletes with clinical suspicion of ti
Publicado em: 2006
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16. "Contribuição ao estudo da influência da radiação ionizante pré-operatória sobre a marcação do linfonodo sentinela do reto com azul patente: estudo experimental em ratos" / Contribution to the study of the influence of preoperative ionizing radiation on the identification of the sentinel lymph node with patent blue : an experimental study in rats
Previous ionizing radiation induces actinic alterations in peritumoral tissues and thus might influence the localization of the sentinel lymph node. The present study developed an experimental model for the localization of the sentinel lymph node of the rectum of the rat and for the definition of the dose of radiation (calibration curve). The objective was t
Publicado em: 2006
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17. "Estudo prospectivo do comprometimento linfonodal do câncer do reto distal. Comparação entre linfocintilografia e tomografia pélvica" / RECTAL NEOPLASMS/radionuclide imaging, LYMPH NODES, TOMOGRAPHY
They were studied prospectivamente the lymph nodes, in 19 patient with adenocarcinoma of distal rectum through pelvic tomography and pelvic lymphoscintigraphy and accomplished the comparative study of the methods, having as based to the pathological anatomy and the staging practise-surgical. It compared the exams to each other obtaining itself that the metho
Publicado em: 2005
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18. "Definição de conduta na investigação de doença coronária obstrutiva utilizando teoria de conjuntos fuzzy aplicada a dados clínico-epidemiológicos, ergométricos e cintilográficos" / Establishment of diagnostic procedures for coronary artery disease based on fuzzy set theory applied to clinical epidemiological data and treadmill electrocardiography and myocardial perfusion scintigraphy results.
Coronary artery disease (CAD) is a worldwide leading cause of death. Early detection is important to prevent such sort of outcome. The gold 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 early detection of CAD
Publicado em: 2004
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19. Radionuclide imaging of the painful joint replacement: past, present and future
É difícil diferenciar o afrouxamento asséptico do infeccioso como causa da falência de uma prótese articular pois ambas as entidades são similares clinica e histopatologicamente. O afrouxamento asséptico frequentemente resulta de uma reação imune à prótese. Há inflamação com o influxo de histiócitos, células gigantes, linfócitos e plasmócit
Brazilian Archives of Biology and Technology. Publicado em: 2002-09
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20. Cardiac tumours: non-invasive detection and assessment by gated cardiac blood pool radionuclide imaging.
Four patients with cardiac tumours were investigated by gated cardiac blood pool radionuclide imaging and echocardiography. Contrast angiocardiography was performed in three of the cases. Two left atrial tumours were detected by all three techniques. In one of these cases echocardiography alone showed additional mitral valve stenosis, but isotope imaging ind
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21. Preoperative imaging of abnormal parathyroid glands in patients with hyperparathyroid disease using combination Tc-99m-pertechnetate and Tc-99m-sestamibi radionuclide scans.
OBJECTIVE: To evaluate the efficacy of combined Tc-99m-pertechnetate and Tc-99m-sestamibi radionuclide scanning for imaging abnormal parathyroid glands in hyperparathyroid disease in a prospective study. SUMMARY BACKGROUND DATA: Established methods to localize abnormal parathyroid glands lack accuracy for routine use. Tc-99m-sestamibi used in conjunction wit
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22. Assessment of left ventricular performance and myocardial viability using quantitative radioisotope techniques.
The diagnostic value of a combined radionuclide technique was compared with conventional angiocardiographic techniques in 60 patients with coronary artery disease. Quantitative 201Tl myocardial imaging combined with radionuclide angiocardiography using 99mTc-HSA provided a safe and accurate method for the assessment of left ventricular performance. The defec
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23. RADIONUCLIDE COMPUTED TOMOGRAPHY: APPLICATIONS IN CARDIOVASCULAR DISEASE
Tomography is an imaging modality in which information in one plane is displayed in focus while information from overlying and underlying planes is either blurred or eliminated. As a result, there is an improvement in the contrast of structures in the plane of interest. Computerized axial tomography (CAT) is an imaging modality in which a digital computer ma
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24. Functional Radionuclide Imaging of the Brain (Serono Symposia Publications from Raven Press, Vol 5)