Microbubbles
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Value of Contrast Transesophageal Echocardiography in the Detection of Intrapulmonary Vascular Dilatations in Hepatosplenic Schistosomiasis
Resumo Fundamento: A síndrome hepatopulmonar (SHP), presente em pacientes cirróticos, é pouco estudada na esquistossomose hepatoesplênica (EHE) e inclui a ocorrência de dilatações vasculares intrapulmonares (DVP). O ecocardiograma transesofágico com contraste (ETEc) de microbolhas é mais sensível que o ecocardiograma transtorácico com contraste (
Arq. Bras. Cardiol.. Publicado em: 03/10/2019
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2. Rapid diagnosis of respiratory distress syndrome by oral aspirate in premature newborns,
Resumo Objetivo: O teste das microbolhas estáveis no aspirado gástrico e no líquido amniótico foi usado no diagnóstico da síndrome do desconforto respiratório do recém-nascido. Contudo, nenhum estudo fez esse teste nos aspirados bucais de neonatos prematuros. O objetivo deste estudo foi avaliar o desempenho do teste das microbolhas estáveis em aspi
J. Pediatr. (Rio J.). Publicado em: 12/09/2019
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3. Physical methods for topical skin drug delivery: concepts and applications
Topical drug delivery is an interesting approach to treat skin diseases and to avoid pain and low patient compliance in cases where a systemic delivery is required. However, the stratum corneum, which is the outermost skin layer, strongly protects the body from the entrance of substances, especially those hydrophilic. In this context, different physical meth
Braz. J. Pharm. Sci.. Publicado em: 08/11/2018
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4. Testing electrode suitability for field stimulation of high-threshold biological preparations
IntroductionA problem posed by electrical field (E) stimulation of biological preparations with high excitation threshold is that the E intensity required for excitation is likely to induce water electrolysis at the electrode surface, which can alter the extracellular medium and cause deleterious effects on the cells. In this study, different electrode mater
Res. Biomed. Eng.. Publicado em: 2015-09
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5. Avaliação de massas cardíacas pela ecocardiografia com perfusão em tempo real / Evaluation of cardiac masses by real time perfusion imaging echocardiography
Introdução: As massas cardíacas (MC) podem ser tumores, trombos ou pseudotumores. A avaliação da vascularização poderá ser uma ferramenta adicional para o seu diagnóstico diferencial. Neste estudo, demonstrou-se o valor diagnóstico da ecocardiografia com perfusão na caracterização das MC or meio de análises qualitativas e quantitativas de perfu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/05/2011
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6. Estudo da perfusão miocárdica e reserva coronariana pela ecocardiografia sob estresse com perfusão em tempo real em pacientes com diabetes melito descompensado e após tratamento / Myocardial perfusion study and coronary flow reserve by real-time utilizing myocardial contrast echocardiography in decompensated diabetic patients after treatment
Background: Diabetes mellitus (DM) is associated with alterations in coronary flow reserve on microvascular circulation. Real-time myocardial contrast echocardiography has proven to be a useful method for non-invasive evaluation of microvascular alterations. The objective of this study was to assess whether the control of diabetes would influence the values
Publicado em: 2010
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7. Imaging of the acute scrotum: is there a place for contrast-enhanced ultrasonography?
Purpose: To present and evaluate the findings of contrast-enhanced ultrasonography (CEUS) in typical cases of acute painful scrotum. Materials and methods: Nineteen patients aged from 19 to 61 years old were included in the study. All patients underwent grey-scale and color Doppler ultrasonography (US) of the scrotum, followed by imaging after i.v. administr
International braz j urol. Publicado em: 2009-12
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8. Contribution of sonographic contrast media in assessment of pancreatic transplantation / Contribuição do meio de contraste ultra-sonográfico na avaliação do pâncreas transplantado
INTRODUCTION: Pancreatic transplantation is the long-term therapeutic option for maintaining normoglycemic status in patients with type 1 diabetes mellitus. Sonographic contrast medium allows to evaluate tissue perfusion but there are no studies comparing this parameter in normal and pathologic pancreatic grafts in the literature at the time of this writing.
Publicado em: 2008
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9. Bioeffects of albumin-encapsulated microbubbles and real-time myocardial contrast echocardiography in an experimental canine model
Myocardial contrast echocardiography has been used for assessing myocardial perfusion. Some concerns regarding its safety still remain, mainly regarding the induction of microvascular alterations. We sought to determine the bioeffects of microbubbles and real-time myocardial contrast echocardiography (RTMCE) in a closed-chest canine model. Eighteen mongrel d
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-06
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10. Síndrome hepatopulmonar: sobrevida e morbidade precoce e sobrevida a longo prazo após o transplante de fígado
Hepatopulmonary syndrome (HPS) is a clinical triad characterized by the presence of intrapulmonary vascular dilation (IPVD) and arterial hypoxemia with hepatic disease. Liver transplantation constitutes the only cure for HPS; possibly providing a complete reversal of the symptoms. However, an association between HPS and adverse results has been reported with
Publicado em: 2006
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11. Avaliação da influência da distribuição de tamanho de partículas e do binômio velocidade/tempo de detenção na zona de reação no desempenho da flotação com emprego de sonda ultra-sônica e de técnica de análise por imagem / Analysis of particles distribution size and the pair velocity/hydraulic residence time in the reaction zone performance of a flotation unit by using ultrasonic probe and image analysis
This work investigated the performance of a dissolved air flotation (DAF) pilot plant, used to treat drinking water containing 05 Tu and 50 Cu. The particles (micro-bubbles and flocs) and hydraulic characteristics were taken into account. The focus was given in the reaction zone as hypothesized by Realis mathematic model (REALI, 1991). An image analyses was
Publicado em: 2005
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12. Study of Coronary Flow Reserve with Intravenous Use of Microbubbles (Contrast Echocardiography) and Adenosine: Protocol for Clinical Application in Patients Suspected of Having Coronary Heart Disease
OBJECTIVE: To test the feasibility, safety and accuracy of the adenosine protocol in the study of myocardial perfusion with microbubbles contrast echocardiography. METHODS: 81 pts (64 male, 60+11 years) were submitted to contrast echocardiography with PESDA (sonicated solution of albumin 20%-1ml, dextrose 5%-12ml and deca-fluorobutane gas-8ml) to study the m
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-03