Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Robert E. Mates"'
Autor:
Robert E. Mates
Publikováno v:
Journal of Biomechanical Engineering. 115:558-561
Dramatic advances have been made in the last two decades in the diagnosis and treatment of coronary artery disease. The development of open heart surgical techniques for bypassing occluded arteries made quantitative diagnostic techniques more importa
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 260:H943-H952
Systolic myocardial contraction may produce changes in coronary resistance and capacitance that persist throughout a normal diastole. In addition, coronary resistance and capacitance as determined in the arrested heart may not accurately describe nor
Autor:
Robert E. Mates
Publikováno v:
Recent Advances in Coronary Circulation ISBN: 9784431682516
Mathematical models of biological systems are useful in testing hypotheses, synthesizing a variety of data, and evaluating the effect of interventions on model parameters. A number of models of the coronary circulation have been published in recent y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f01d891adc69f2a4523a5063c81c9023
https://doi.org/10.1007/978-4-431-68249-3_17
https://doi.org/10.1007/978-4-431-68249-3_17
Autor:
Robert E. Mates, Robert M. Judd
Publikováno v:
Advances in Experimental Medicine and Biology ISBN: 9781461362807
We have developed a mathematical model which describes pressure-inflow relationships in the coronary circulation. Model parameters have been identified during metabolic and pharmacologic vasodilation. These two stimuli appear to affect resistance and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c2184d85aec125e7c1abcaf21ffbbe6
https://doi.org/10.1007/978-1-4615-2946-0_14
https://doi.org/10.1007/978-1-4615-2946-0_14
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 248:H700-H711
To quantify reactive elements of the coronary circulation, we have characterized in vivo diastolic coronary input impedance by introducing sinusoidal pressure oscillations of constant amplitude and varying frequency at constant mean pressure levels d
Autor:
Francis J. Klocke, Kenneth W. Wallmeyer, Irwin R. Weinstein, Martin P. Echt, Avery K. Ellis, Robert E. Mates, Roslyn R. Romanowski, James F. Klocke, John M. Canty, David R. Kraus, Ran D. Anbar
Publikováno v:
Journal of Clinical Investigation. 68:970-980
The proposal that diastolic coronary flow is regulated by an intramyocardial “back-pressure” that substantially exceeds coronary venous and ventricular diastolic pressures has been examined in an open-chest canine preparation in which instantaneo
Publikováno v:
Circulation Research. 35:184-196
A mathematical model is presented describing the time- and length-dependent behavior of cardiac muscle. The model describes a wider variety of experimental data than do previously published models. It incorporates a modification of the Hill equation
Publikováno v:
Circulation Research. 60:273-282
Although previous studies have proposed a variety of models to characterize diastolic pressure-flow relations, the models' ability to predict capacitance-free pressure-flow relations from dynamic information in individual studies has not been determi
Publikováno v:
Journal of Biomechanical Engineering. 101:225-231
A three-dimensional composite model of heart muscle is proposed, consisting of one-dimensional (uniaxial) active contractile filaments embedded in a passive elastic binder. Equations are developed which relate the force developed by the filaments to
Publikováno v:
Circulation Research. 26:71-83
Left ventricular dimensions from routine clinical one-plane cineangiograms were combined with left ventricular pressure measurements to permit calculation of left ventricular wall stresses. The 25 patients included 12 with normal left ventricular dyn