Hemodynamic Factors at the Distal End-to-Side Anastomosis of a Bypass Graft With Different POS:DOS Flow Ratios

Xue-Mei Li; Stanley E. Rittgers

doi:10.1115/1.1372323

Journal of Biomechanical Engineering | Volume 123 | Issue 3 | TECHNICAL PAPERS

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TECHNICAL PAPERS

Hemodynamic Factors at the Distal End-to-Side Anastomosis of a Bypass Graft With Different POS:DOS Flow Ratios

Xue-Mei Li and Stanley E. Rittgers

[+] Author and Article Information

Xue-Mei Li, Stanley E. Rittgers

Department of Biomedical Engineering, The University of Akron, Akron, OH 44325-0302

J Biomech Eng 123(3), 270-276 (Dec 13, 2000) (7 pages) doi:10.1115/1.1372323 History: Received May 25, 1999; Revised December 13, 2000

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Figures

Mock pulsatile flow system showing distal anastomosis model, proximal (POS) and distal (DOS) outflow segments, and LDA measurement device

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Typical graft inlet flow waveform

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Axial positions along graft hood and artery floor for velocity measurements

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Illustration of flow streamline patterns during late diastole for (a) Case 1 (POS:DOS=0:100), (b) Case 2 (POS:DOS=25:75) and (c) Case 3 (POS:DOS=50:50). Bold arrows indicate the ranges of movement and the direction of the stagnation point from systole to diastole (see text for further explanation).

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Spatial distributions of mean wall shear stress: (a–c) along the artery floor for Cases 1–3, respectively, and (d–f ) along the graft hood for Cases 1–3, respectively

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Zero WSS plane (black: WSS≥0 and white: WSS<0): (a–c) along the artery floor for Cases 1–3, respectively and (d–f ) along the graft hood for Cases 1–3, respectively

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Li X, Rittgers SE. Hemodynamic Factors at the Distal End-to-Side Anastomosis of a Bypass Graft With Different POS:DOS Flow Ratios. ASME. J Biomech Eng. 2000;123(3):270-276. doi:10.1115/1.1372323.

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Hemodynamic Factors at the Distal End-to-Side Anastomosis of a Bypass Graft With Different POS:DOS Flow Ratios

References

Figures

Mock pulsatile flow system showing distal anastomosis model, proximal (POS) and distal (DOS) outflow segments, and LDA measurement device

Typical graft inlet flow waveform

Axial positions along graft hood and artery floor for velocity measurements

Illustration of flow streamline patterns during late diastole for (a) Case 1 (POS:DOS=0:100), (b) Case 2 (POS:DOS=25:75) and (c) Case 3 (POS:DOS=50:50). Bold arrows indicate the ranges of movement and the direction of the stagnation point from systole to diastole (see text for further explanation).

Spatial distributions of mean wall shear stress: (a–c) along the artery floor for Cases 1–3, respectively, and (d–f ) along the graft hood for Cases 1–3, respectively

Zero WSS plane (black: WSS≥0 and white: WSS<0): (a–c) along the artery floor for Cases 1–3, respectively and (d–f ) along the graft hood for Cases 1–3, respectively

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Errata

Discussions

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