Results 21 to 30 of about 1,806,820 (366)
Upregulation of 5-hydroxytryptamine receptor signaling in coronary arteries after organ culture. [PDF]
5-Hydroxytryptamine (5-HT) is a powerful constrictor of coronary arteries and is considered to be involved in the pathophysiological mechanisms of coronary-artery spasm. However, the mechanism of enhancement of coronary-artery constriction to 5-HT during
Chun-Yu Deng+11 more
doaj +1 more source
Localization of coronary bypass targets in hard-to-see coronary arteries
Background Precise identification of coronary arteries and selection of anastomotic sites are critical stages of coronary bypass surgery. Visualization of coronary arteries is occasionally challenging when the heart is covered with a thick layer of fat ...
Rabin Gerrah+2 more
doaj +1 more source
Crossing coronary arteries [PDF]
A 73-year-old man was referred to the outpatient clinic because of an aortic stenosis and angina pectoris (NYHA class 2). An exercise stress test was abnormal suggesting ischaemia.
Zegers, E.S.+2 more
openaire +4 more sources
In the typical course of the coronary arteries, the right coronary artery comes from the right coronary sinus and descends in the right atrioventricular groove. The left coronary artery trunk begins from the left coronary sinus.
Paweł Gać+2 more
doaj +1 more source
To the Editor: Njeim and colleagues1 reported on a patient in whom the common trunk arising from the right coronary sinus gave rise to all coronary arteries that supplied the myocardium. This anomaly is called single coronary artery. The authors stated that, after the large common trunk, a right coronary artery (RCA) coursed along the ...
Sen T.+3 more
openaire +4 more sources
AGMN: Association Graph-based Graph Matching Network for Coronary Artery Semantic Labeling on Invasive Coronary Angiograms [PDF]
Semantic labeling of coronary arterial segments in invasive coronary angiography (ICA) is important for automated assessment and report generation of coronary artery stenosis in the computer-aided diagnosis of coronary artery disease (CAD). Inspired by the training procedure of interventional cardiologists for interpreting the structure of coronary ...
arxiv +1 more source
Altered endothelin receptor expression and affinity in spontaneously hypertensive rat cerebral and coronary arteries. [PDF]
BACKGROUND: Hypertension is associated with arterial hyperreactivity, and endothelin (ET) receptors are involved in vascular pathogenesis. The present study was performed to examine the hypothesis that ET receptors were altered in cerebral and coronary ...
Lei Cao+3 more
doaj +1 more source
Patients with terminal heart failure, refractory to drug therapy, are severe category of cardiology. The possibility of effective correction of multi-organ failure and an increase in the life-time of patients with critical cardiac insuffi ciency has been ...
D. S. Khvan+7 more
doaj +1 more source
Automatic extraction of coronary arteries using deep learning in invasive coronary angiograms [PDF]
Accurate extraction of coronary arteries from invasive coronary angiography (ICA) is important in clinical decision-making for the diagnosis and risk stratification of coronary artery disease (CAD). In this study, we develop a method using deep learning to automatically extract the coronary artery lumen. Methods.
arxiv +1 more source
THE CONDITION OF DISTAL AORTA AFTER PROXIMAL RECONSTRUCTION FOR DISSECTION IN MARFAN SYNDROME
Marfan syndrome is a disease associated with high prevalence of aorta-related morbidity and mortality. Dissections and ruptures of thoracal aorta (ThAo) lead to decreased life duration in persons with Marfan syndrome with mediana at 30 year-old.Aim.
A. M. Chernyavskiy+4 more
doaj +1 more source