Buscar
Mostrando ítems 21-30 de 516
Giant right coronary artery aneurysm presenting as a paracardiac mass
(ELSEVIER SCIENCE INC, 2008)
Coronary artery aneurysms, commonly atherosclerotic, are usually asymptomatic and can be diagnosed incidentally during investigation for ischemic heart disease or on autopsy. An asymptomatic giant right coronary artery ...
Endothelial and non-endothelial coronary blood flow reserve and left ventricular dysfunction in systemic hypertension
(Faculdade de Medicina / USP, 2009)
OBJECTIVES: We evaluated the impairment of endothelium-dependent and endothelium-independent coronary blood flow reserve after administration of intracoronary acetylcholine and adenosine, and its association with hypertensive ...
Automatic centerline extraction of left coronary artery from X–ray rotational angiographic images
(International Society For Optical Engineering, 2018)
Rotational X-ray coronary angiography is a medical imaging technique safe and effective in identifying of the
luminal disease, which considers a significant reduction in radiation exposure and contrast medium volume
compared ...
Scaling laws and the left main coronary artery bifurcation: a combination of geometric and simulation analyses
(Elsevier, 2022-01)
The geometry of coronary arteries is believed to play the role as an atherosclerotic risk factor on its own. The full characterization of the normal coronary network has been reported in the literature. Reports on the ...
Total and regional coronary blood flow during acute right ventricular pressure overload
(1974)
Total and regional coronary blood flow were measured with radioactive microspheres before and during acute right ventricular pressure overload. Coronary flow to the left ventricular wall decreased and coronary vascular ...
Total and regional coronary blood flow during acute right ventricular pressure overload
(Oxford University Press, 1974)
AUTHORS' SYNOPSIS: Total and regional coronary blood flow were measured with radioactive microspheres before and during acute right ventricular pressure overload. Coronary flow to the left ventricular wall decreased and ...
Dissecção coronária espontânea
(Sociedade Brasileira de Hemodinâmica e Cardiologia Intervencionista - SBHCI, 2011-03-01)
A 36-year-old female, with no cardiovascular risk factors, was examined with angina pectoris. Electrocardiogram showed T wave inversion in D2, D3 and aVF surface leads. The patient was submitted to coronary angiography ...
The left ventricular contractility of the rat heart is modulated by changes in flow and a1-adrenoceptor stimulation
(Associação Brasileira de Divulgação Científica, 1998-10-01)
Myocardial contractility depends on several mechanisms such as coronary perfusion pressure (CPP) and flow as well as on a1-adrenoceptor stimulation. Both effects occur during the sympathetic stimulation mediated by ...
O efeito Anrep.
(1994-12-01)
O efeito Anrep.
(1994-12-01)