Title :
The role of input impedance on ventricular efficiency
Author :
Westerhof, Nico ; Stergiopulos, Nikos
Author_Institution :
Lab. for Physiol., Vrije Univ., Amsterdam, Netherlands
fDate :
31 Oct-3 Nov 1996
Abstract :
The heart is characterized by its pump function graph and the arterial system by its input impedance. From this information one can obtain power and efficiency and the RC-time of the arterial system. Heart and arterial system are matched in two aspects. The first matching aspect is in terms of heart period, inverse of heart rate, and arterial decay time, their ratio being the same in mammals. The second aspect is that the heart´s volume is minimized resulting in a pump operating at optimum power transfer and efficiency
Keywords :
cardiology; haemodynamics; RC-time; arterial decay time; arterial system; heart rate inverse; input impedance; mammals; optimum efficiency; optimum power transfer; pump function graph; ventricular efficiency; Arteries; Blood; Filling; Frequency; Heart rate; Immune system; Impedance; Isobaric; Physiology; Postal services;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652845
