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In Vitro Investigation of Contrast Mixability for Functional Angiography

[+] Author Affiliations
Baruch B. Lieber, Matthew J. Gounis, Nico Bahar

University of Miami

Paper No. IMECE2004-61659, pp. 45-46; 2 pages
doi:10.1115/IMECE2004-61659
From:
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4703-9 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME

abstract

Ever since x-ray cine-angiography was employed to visualize blood vessels, the observed flow of contrast through the vasculature enticed researches to attempt evaluation of blood flow or its velocity through the observed contrast dispersion. However, despite considerable efforts that were expended both in vitro on phantoms and in vivo, the determination of blood flow from the observed contrast remains elusive. What conspired to frustrate these efforts are the complex physical phenomena that govern the dispersion of a bolus of contrast in the pulsatile flowing blood solvent. Further, what compounded the difficulties is the deteriorating visibility of the contrast as it dispersed in the blood. In this experiment we investigate the dispersion of iodine based contrast material as is settles in slender glass vials filled with various fluids that are commonly used to either dilute the contrast material for in vivo application or as fluid media into which the contrast is injected both in vivo and in vitro.

Copyright © 2004 by ASME

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