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The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries

Publication ,  Journal Article
Clingan, PA; Friedman, MH
Published in: Ann. Biomed. Eng. (USA)
2000

The effects of the outflow of aortic blood through the celiac and renal arteries on the flow field in the external iliac arteries were studied under steady and physiologically realistic pulsatile flow conditions. Laser Doppler velocimetry (LDV) measurements were made close to the medial, lateral, ventral, and dorsal walls of the external iliac branches of a clear, flow-through replica of a porcine aorta and its daughter vessels. The outflow from each branch of the replica was controlled so that the infrarenal aortic flow rate and the flow partition at the aortic trifurcation were the same for all experiments. LDV measurements were made with flow exiting through both the renal and celiac artery ostia, only the celiac ostium, and neither ostium. The steady flow results indicate that while the outflow through the renal arteries did not have a significant effect on near wall shear rate in the external iliac arteries, the flow through the celiac artery did. However, in pulsatile flow, three indices of near wall velocity in the iliac arteries were unaffected by celiac artery outflow, while a fourth showed a small effect that can be attributed to differences in minimum velocity. These results indicate that reliable simulations of blood flow in the external iliac arteries can be carried out without including the renal and celiac vessels, provided that the correct infrarenal flow wave is used. They also demonstrate that the flow field downstream of a region, such as a branch, that strongly alters the flow, can be nearly independent of the velocity field entering the region

Duke Scholars

Published In

Ann. Biomed. Eng. (USA)

DOI

Publication Date

2000

Volume

28

Issue

3

Start / End Page

302 / 308

Related Subject Headings

  • Biomedical Engineering
  • 11 Medical and Health Sciences
  • 09 Engineering
 

Citation

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Clingan, P. A., & Friedman, M. H. (2000). The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries. Ann. Biomed. Eng. (USA), 28(3), 302–308. https://doi.org/10.1114/1.269
Clingan, P. A., and M. H. Friedman. “The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries.” Ann. Biomed. Eng. (USA) 28, no. 3 (2000): 302–8. https://doi.org/10.1114/1.269.
Clingan PA, Friedman MH. The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries. Ann Biomed Eng (USA). 2000;28(3):302–8.
Clingan, P. A., and M. H. Friedman. “The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries.” Ann. Biomed. Eng. (USA), vol. 28, no. 3, 2000, pp. 302–08. Manual, doi:10.1114/1.269.
Clingan PA, Friedman MH. The effect of celiac and renal artery outflows on near-wall velocities in the porcine iliac arteries. Ann Biomed Eng (USA). 2000;28(3):302–308.

Published In

Ann. Biomed. Eng. (USA)

DOI

Publication Date

2000

Volume

28

Issue

3

Start / End Page

302 / 308

Related Subject Headings

  • Biomedical Engineering
  • 11 Medical and Health Sciences
  • 09 Engineering