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Chapter and Conference Paper
Fractal Dimension Analysis of Heart Rate Variability with Left Ventricular Assist Device
We analyzed heart rate variability by nonlinear mathematics, including fractal theory, to evaluate the hemodynamic stability of left ventricular assistance. A left ventricular assist device (LVAD) was implante...
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Chapter and Conference Paper
Sympathetic Nerve Adjustment to Artificial Circulation
To analyze the dynamical behavior of the autonomic nervous system while being driven by an artificial heart, sympathetic nerve discharges were analyzed by the use of nonlinear mathematics, including chaos and ...
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Chapter and Conference Paper
Fractal Dimension Analysis of Chaos in Hemodynamics with Artificial Heart
To analyze the hemodynamic parameters in prosthetic circulation as a complete entity, not as a decomposed entity, non-linear mathematical techniques, including chaos and fractal theory, were utilized. Two pneu...
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Article
Differentiation of transiently ischemic from infarcted myocardium by Thallium-201 exercises scintigram after active ergometer rehabilitation
It has been frequently reported that while myocardial viability is neglected in conventional methods of diagnosis such as left ventriculography, ECG, and exercise thallium-201 myocardial scintigraphy (Ex-Tl), ...
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Chapter
Minimization of Hemolysis in the Design Improvement of a Totally Implantable Univalved Artificial Heart System (AHS)
We have been involved for some time in the development and evaluation of an artificial heart system; in recent years we have developed a new type of electro-magnetically driven pump, designed with a high frequ...
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Chapter
New Artificial Heart Control Method from the Neurophysiological Point of View
In order to determine optimal drive conditions for the total artificial heart (TAH) from the neurophysiological point of view, power spectral analysis of the hemodynamic parameters in animals chronically impla...
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Chapter and Conference Paper
The prospective control of a total artificial heart using sympathetic tone and hemodynamic parameters
In order to develop the real-time control system of a total artificial heart (TAH), we use the sympathetic tone and the hemodynamic parameters. Moving averages of the mean left atrial pressure and mean aortic ...
