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Validation of a Noninvasive Thermal Perfusion System Using a Canine Medial Saphenous Fasciocutaneous Free Tissue Flap Model

[+] Author Affiliations
Alex V. Cardinali, Thomas E. Diller, Otto Lanz, Elaine P. Scott

Virginia Polytechnic Institute and State University, Blacksburg, VA

Paper No. IMECE2002-32354, pp. 9-16; 8 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


This work describes steps in the ongoing development of a system to noninvasively estimate blood perfusion using thermal methods. A combination thermocouple/thermopile sensor is used to record heat flux and temperature measurements on the tissue of interest. The resulting data are compared to a biothermal computer model to determine blood perfusion. The system has been tested on a canine medial saphenous fasciocutaneous free tissue flap that allows experimental control of blood flow to the measurement site. These experiments show distinct correlation between blood flow and bioprobe output demonstrating the validity of the measurement method.

Copyright © 2002 by ASME



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