Title :
A Model Study of Stroke Volume Values Calculated from Impedance and Their Relation to the Waveform of Blood Flow
Author :
Ito, Hiroshi ; Yamakoshi, Ken-ichi ; Togawa, Andtatsuo
Abstract :
By means of a computer simulation, cardiac stroke volume measured with Kubicek´s impedance method (SVz) was evaluated against aortic flow waveform. SVz varied remarkably with the change in the shape of aortic flow-wave whose stroke volume was held constant. SVz was equal to the stroke volume only when the flow-wave was square.
Keywords :
Blood flow; Dogs; EMP radiation effects; Equations; Immune system; Impedance measurement; Indium tin oxide; Physiology; Pulse measurements; Volume measurement; Animals; Aorta; Blood Circulation; Cardiac Output; Computers; Dogs; Models, Anatomic; Models, Biological; Plethysmography, Impedance; Regional Blood Flow;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1977.326190
