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Evaluation of stunned and infarcted canine myocardium by real time myocardial contrast echocardiography BJMBR
Dourado,P.M.M.; Tsutsui,J.M.; Mathias Jr.,W.; Andrade,J.L.; da Luz,P.L.; Chagas,A.C.P..
Differentiation between stunned and infarcted myocardium in the setting of acute ischemia is challenging. Real time myocardial contrast echocardiography allows the simultaneous assessment of myocardial perfusion and function. In the present study we evaluated infarcted and stunned myocardium in an experimental model using real time myocardial contrast echocardiography. Sixteen dogs underwent 180 min of coronary occlusion followed by reperfusion (infarct model) and seven other dogs were submitted to 20 min of coronary occlusion followed by reperfusion (stunned model). Wall motion abnormality and perfusional myocardial defect areas were measured by planimetry. Risk and infarct areas were determined by tissue staining. In the infarct model, the wall motion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myocardial perfusion; Contrast echocardiography; Myocardial stunning; Myocardial infarction.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100009
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Selection of patients for myocardial perfusion scintigraphy based on fuzzy sets theory applied to clinical-epidemiological data and treadmill test results BJMBR
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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