Estimation of Systemic Arterial Impedance in Man From Cardiac Catheterization Data

[+] Author and Article Information
R. Prakash

Department of Mechanical Engineering, State University of New York at Buffalo, Buffalo, N.Y.

E. S. Grood

Department of Orthopedic Surgery, University of Cincinnati, Cincinnati, Ohio

R. E. Mates

Departments of Mechanical Engineering and Medicine, State University of New York at Buffalo, Buffalo, N.Y.

J Biomech Eng 99(1), 9-13 (Feb 01, 1977) (5 pages) doi:10.1115/1.3426269 History: Received July 12, 1976; Online October 21, 2010


A five-parameter transfer function has been used to characterize the input impedance of the human systemic circulation. Aortic pressure and flow measurements obtained at cardiac catheterization are employed to evaluate the model parameters in individual patients. The appropriate parameters are chosen using a standard optimization technique to minimize the difference between pressures computed from the model and the measured values. Impedance parameters calculated for 19 patients showed considerable variation with no apparent correlation with the type of heart disease. The model is useful in describing the loading of the left ventricle produced by the systemic circulation. It may also have application to the study of vascular disease.

Copyright © 1977 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In