Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis

A. P. Yoganathan, J. Ball, Y. R. Woo, E. F. Philpot, H. W. Sung, R. H. Franch, David Sahn

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Velocity and flow visualization studies were conducted in an adult size pulmonary artery model with varying degrees of valvular stenosis, using a two dimensional laser Doppler anemometer system. Velocity measurements in the main, left and right branches of the pulmonary artery revealed that as the degree of pulmonic stenosis increased, the jet type flow created by the valve hit the distal wall of the LPA farther downstream from the junction of the bifurcation. This in turn led to higher levels of turbulent and disturbed flow, and larger secondary flow motion in the LPA compared to the RPA. The high levels of turbulence measured in the main and left pulmonary arteries with the stenotic valves, could lead to the clinically observed phenomenon of post stenotic dilatation in the MPA extending into the LPA.

Original languageEnglish (US)
Pages (from-to)129-146
Number of pages18
JournalJournal of Biomechanics
Volume19
Issue number2
DOIs
StatePublished - 1986
Externally publishedYes

Fingerprint

Pulmonary Valve Stenosis
Secondary flow
Anemometers
Flow measurement
Steady flow
Flow visualization
Flow velocity
Velocity measurement
Pulmonary Artery
Turbulence
Lasers
Dilatation
Pathologic Constriction

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Yoganathan, A. P., Ball, J., Woo, Y. R., Philpot, E. F., Sung, H. W., Franch, R. H., & Sahn, D. (1986). Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis. Journal of Biomechanics, 19(2), 129-146. https://doi.org/10.1016/0021-9290(86)90143-0

Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis. / Yoganathan, A. P.; Ball, J.; Woo, Y. R.; Philpot, E. F.; Sung, H. W.; Franch, R. H.; Sahn, David.

In: Journal of Biomechanics, Vol. 19, No. 2, 1986, p. 129-146.

Research output: Contribution to journalArticle

Yoganathan, AP, Ball, J, Woo, YR, Philpot, EF, Sung, HW, Franch, RH & Sahn, D 1986, 'Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis', Journal of Biomechanics, vol. 19, no. 2, pp. 129-146. https://doi.org/10.1016/0021-9290(86)90143-0
Yoganathan, A. P. ; Ball, J. ; Woo, Y. R. ; Philpot, E. F. ; Sung, H. W. ; Franch, R. H. ; Sahn, David. / Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis. In: Journal of Biomechanics. 1986 ; Vol. 19, No. 2. pp. 129-146.
@article{a85b86f464634ee994958bb9b6fb8707,
title = "Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis",
abstract = "Velocity and flow visualization studies were conducted in an adult size pulmonary artery model with varying degrees of valvular stenosis, using a two dimensional laser Doppler anemometer system. Velocity measurements in the main, left and right branches of the pulmonary artery revealed that as the degree of pulmonic stenosis increased, the jet type flow created by the valve hit the distal wall of the LPA farther downstream from the junction of the bifurcation. This in turn led to higher levels of turbulent and disturbed flow, and larger secondary flow motion in the LPA compared to the RPA. The high levels of turbulence measured in the main and left pulmonary arteries with the stenotic valves, could lead to the clinically observed phenomenon of post stenotic dilatation in the MPA extending into the LPA.",
author = "Yoganathan, {A. P.} and J. Ball and Woo, {Y. R.} and Philpot, {E. F.} and Sung, {H. W.} and Franch, {R. H.} and David Sahn",
year = "1986",
doi = "10.1016/0021-9290(86)90143-0",
language = "English (US)",
volume = "19",
pages = "129--146",
journal = "Journal of Biomechanics",
issn = "0021-9290",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Steady flow velocity measurements in a pulmonary artery model with varying degrees of pulmonic stenosis

AU - Yoganathan, A. P.

AU - Ball, J.

AU - Woo, Y. R.

AU - Philpot, E. F.

AU - Sung, H. W.

AU - Franch, R. H.

AU - Sahn, David

PY - 1986

Y1 - 1986

N2 - Velocity and flow visualization studies were conducted in an adult size pulmonary artery model with varying degrees of valvular stenosis, using a two dimensional laser Doppler anemometer system. Velocity measurements in the main, left and right branches of the pulmonary artery revealed that as the degree of pulmonic stenosis increased, the jet type flow created by the valve hit the distal wall of the LPA farther downstream from the junction of the bifurcation. This in turn led to higher levels of turbulent and disturbed flow, and larger secondary flow motion in the LPA compared to the RPA. The high levels of turbulence measured in the main and left pulmonary arteries with the stenotic valves, could lead to the clinically observed phenomenon of post stenotic dilatation in the MPA extending into the LPA.

AB - Velocity and flow visualization studies were conducted in an adult size pulmonary artery model with varying degrees of valvular stenosis, using a two dimensional laser Doppler anemometer system. Velocity measurements in the main, left and right branches of the pulmonary artery revealed that as the degree of pulmonic stenosis increased, the jet type flow created by the valve hit the distal wall of the LPA farther downstream from the junction of the bifurcation. This in turn led to higher levels of turbulent and disturbed flow, and larger secondary flow motion in the LPA compared to the RPA. The high levels of turbulence measured in the main and left pulmonary arteries with the stenotic valves, could lead to the clinically observed phenomenon of post stenotic dilatation in the MPA extending into the LPA.

UR - http://www.scopus.com/inward/record.url?scp=0022613551&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022613551&partnerID=8YFLogxK

U2 - 10.1016/0021-9290(86)90143-0

DO - 10.1016/0021-9290(86)90143-0

M3 - Article

C2 - 3957943

AN - SCOPUS:0022613551

VL - 19

SP - 129

EP - 146

JO - Journal of Biomechanics

JF - Journal of Biomechanics

SN - 0021-9290

IS - 2

ER -