Myocardial Perfusion
Mostrando 1-12 de 256 artigos, teses e dissertações.
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1. Takotsubo Cardiomyopathy and Myocardial Perfusion Image: Unusual Binomial in the Investigation of Acute Coronary Syndrome without Obstructive Lesions
International Journal of Cardiovascular Sciences. Publicado em: 2022
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2. Comparison between Bruce and Ramp Protocols for Exercise Testing in the Diagnosis of Myocardial Ischemia
Abstract Background: Exercise tests are an important tool in the investigation of myocardial ischemia. The ramp protocol has gained increasing importance in clinical practice because of the possibility of individualizing its exercise intensity. Objective: To assess and compare the sensitivity, specificity, and accuracy of Bruce and ramp protocols for exerc
International Journal of Cardiovascular Sciences. Publicado em: 2022
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3. Nuclear Medicine Methods for Assessment of Chronic Chagas Heart Disease
Abstract Several different imaging methods can be used to evaluate patients with Chagas heart disease (CHD) for diagnostic and prognostic purposes, including plain chest radiography; echocardiography; myocardial perfusion scintigraphy, for detection of ischemia and fibrosis; radionuclide gated-angiography, for evaluation of biventricular function; 123I-MIBG
Int. J. Cardiovasc. Sci.. Publicado em: 2020-12
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4. Effect of Shenfu Injection on Isolated Empty Beating Hearts from Miniature Pigs
Abstract Objective: To investigate the effect of Shenfu (SF) injection on donor heart preservation. Methods: Twelve pigs were randomly divided into SF group (n=6) and control group (n=6). After eight hours of perfusion, the differences in hemoglobin, the expression of Bcl-2 and BAX, and changes in the myocardial ultrastructure were compared to illustrate t
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
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5. Cardiovascular involvement in COVID-19: not to be missed
Abstract In December 2019, a striking appearance of new cases of viral pneumonia in Wuhan led to the detection of a novel coronavirus (SARS-CoV2). By analyzing patients with severe manifestations, it became apparent that 20 to 35% of patients who died had preexisting cardiovascular disease. This finding warrants the important need to discuss the influence of
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
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6. Enhanced external counterpulsation improves cardiac function in Beagles after cardiopulmonary resuscitation
The aim of this study was to investigate the influence of enhanced external counterpulsation (EECP) on the cardiac function of beagle dogs after prolonged ventricular fibrillation. Twenty-four adult male beagles were randomly divided into control and EECP groups. Ventricular fibrillation was induced in the animals for 12 min, followed by 2 min of cardiopulmo
Braz J Med Biol Res. Publicado em: 2020-01
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7. Myocardial Computed Tomography Perfusion: One More Piece on The Board
Arq. Bras. Cardiol.. Publicado em: 02/12/2019
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8. Evaluation of Myocardial Perfusion by Computed Tomography - Principles, Technical Background and Recommendations
Resumo A angiografia coronariana por tomografia computadorizada (ACTC) assumiu um papel de destaque na avaliação da doença arterial coronariana. Entretanto, sua natureza anatômica não permitia a avaliação da repercussão funcional das obstruções coronarianas. Recentemente, tornou-se possível a avaliação da perfusão miocárdica por tomografia com
Arq. Bras. Cardiol.. Publicado em: 04/11/2019
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9. Late cardiac perconditioning by phenylephrine in an isolated rat heart model is mediated by mitochondrial potassium channels
The present study was designed to investigate the effect of early and late administration of phenylephrine during ischemia against regional ischemia-reperfusion injuries in an isolated rat heart model. All animals were randomly divided into experimental groups: (I) IR (Ischemic/ reperfusion): the hearts underwent 35 min of regional ischemia followed by 60 mi
Braz. J. Pharm. Sci.. Publicado em: 24/10/2019
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10. Myocardial Perfusion by Coronary Computed Tomography in the Evaluation of Myocardial Ischemia: Simultaneous Stress Protocol with SPECT
Resumo Fundamento: A avaliação funcional para descartar a isquemia miocárdica utilizando a angiotomografia computadorizada (angio-TC) de coronárias é de extrema importância e dados na população brasileira ainda são escassos. Objetivo: Avaliar o desempenho diagnóstico da perfusão miocárdica pela angio-TC de coronárias na detecção de doença a
Arq. Bras. Cardiol.. Publicado em: 03/10/2019
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11. Comment on Myocardial Perfusion Study in Obese Patients without Known Cardiac Ischemia
Arq. Bras. Cardiol.. Publicado em: 06/06/2019
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12. Chest pain score: a novel and practical approach to angina pectoris. A diagnostic accuracy study
ABSTRACT BACKGROUND: The chest pain classifications that are currently in use are based on studies that are several decades old. Various studies have indicated that these classifications are not sufficient for determining the origin of chest pain without additional diagnostic tests or tools. We describe a new chest pain scoring system that examines the rel
Sao Paulo Med. J.. Publicado em: 08/05/2019