Results 171 to 180 of about 1,561,748 (232)

THE NUTRITION OF THE HEART THROUGH THE VESSELS OF THEBESIUS AND THE CORONARY VEINS

, 1898
F EW beliefs of the present day are more firmly intrenched than that of the total dependence of the mammalian heart upon the coronary arteries. We are taught that without the blood brought by these vessels the long-continued, rhythmic contractions of the
BY F. H. Pratt
semanticscholar   +1 more source

Lumped flow modeling in dynamically loaded coronary vessels.

Journal of Biomechanical Engineering, 2008
Most of the myriad (order of 10(9)) interconnected coronary vessels interact nonlinearly with their embedding contracting myocardium. Their dynamic flow can be simulated based on a nonlinear distributive segmental flow model involving highly nonlinear ...
J. Jacobs, Dotan Algranati, Y. Lanir
semanticscholar   +1 more source

Reduced basal NO-mediated dilation and decreased endothelial NO-synthase expression in coronary vessels of spontaneously hypertensive rats.

Journal of Molecular and Cellular Cardiology, 1997
Basal vasomotor tone in coronary vessels is, in part, maintained by nitric oxide (NO) production by endothelial constitutive NO synthase (ecNOS). Alteration of coronary circulation observed in left ventricular hypertrophy secondary to hypertension could ...
M. Crabos, P. Coste, M. Paccalin, L. Tariosse, D. Daret, P. Besse, S. Bonoron‐Adèle   +6 more
semanticscholar   +1 more source

Atherosclerotic involvement of coronary branch vessels

Atherosclerosis, 1986
The atherosclerotic involvement of coronary branch vessels (first diagonal, first septal, posterior descending, left and right marginals, conus and the vessels supplying the conduction system) was investigated in 450 apparently healthy subjects aged 11-55 years who died of accidental causes.
C. Velican, Doina Velican
openaire   +3 more sources

ANGY: A Rule-Based Expert System for Automatic Segmentation of Coronary Vessels From Digital Subtracted Angiograms

IEEE Transactions on Pattern Analysis and Machine Intelligence, 1986
This paper details the design and implementation of ANGY, a rule-based expert system in the domain of medical image processing. Given a subtracted digital angiogram of the chest, ANGY identifies and isolates the coronary vessels, while ignoring any ...
S. Stansfield
semanticscholar   +1 more source

Epicardium and Coronary Vessels

Congenital anomalies and acquired diseases of the coronary blood vessels are of great clinical relevance. The early diagnosis of these conditions remains, however, challenging. In order to improve our knowledge of these ailments, progress has to be achieved in the research of the molecular and cellular mechanisms that control development of the ...
Adrián, Ruiz-Villalba, Juan Antonio, Guadix, José M, Pérez-Pomares   +2 more
openaire   +2 more sources

Restenosis rates in diabetic patients: a comparison of coronary stenting and balloon angioplasty in native coronary vessels.

Circulation, 1997
BACKGROUND Diabetes is a major risk factor for restenosis after coronary balloon angioplasty. Recent studies have shown that coronary stenting significantly reduces restenosis compared with balloon angioplasty alone.
E. Belle, C. Bauters, E. Hubert, J. Bodart, K. Abolmaali, T. Meurice, E. Mcfadden, J. Lablanche, M. Bertrand   +8 more
semanticscholar   +1 more source

Contribution of nitric oxide to dilation of resistance coronary vessels in conscious dogs.

American Journal of Physiology, 1992
Endothelium-dependent relaxation of conductance coronary vessels involves nitric oxide formation from L-arginine. The present study examines whether a similar mechanism intervenes in the vasomotor control of resistance coronary vessels. In conscious dogs,
R. Parent, R. Paré, M. Lavallée
semanticscholar   +1 more source

Regulation of coronary resistance vessels and large coronary arteries

The American Journal of Cardiology, 1985
There is now considerable evidence for alpha-adrenergic regulation of coronary resistance vessels and large coronary arteries based on studies of chronically instrumented, conscious animals. Infusion of norepinephrine at low doses causes reduction of coronary blood flow with a slight increase in arterial pressure, indicating intense coronary ...
openaire   +3 more sources

Simple Techniques for the Surgical Occlusion of Coronary Vessels in the Rat

Angiology, 1960
From the Institut de Médecine et de Chirurgie expérimentales, Université de Montréal, Montreal, Canada. * The essence of this communication was presented to the International College of Angiology at a Meeting held in Montreal, February 20, 1960. t Fellow
H. Selye, E. Bajusz, S. Grasso, P. Mendell   +3 more
semanticscholar   +1 more source