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Hemodynamic Analysis of Autologous Arteriovenous Fistula Based on Fluid-Structure Interaction Simulation
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Fan WANG1, 2, Jinfeng GUO1, 2, Cheng ZHANG1, 2, Ruixin GUO3, Weina MU1, 2, 4, Xiangjie KONG1, 2
Journal of Medical Biomechanics | 2025, 40(5) : 1248 - 1255
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Journal of Medical Biomechanics | 2025, 40(5): 1248-1255
Original Articles
Hemodynamic Analysis of Autologous Arteriovenous Fistula Based on Fluid-Structure Interaction Simulation
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Fan WANG1, 2, Jinfeng GUO1, 2, Cheng ZHANG1, 2, Ruixin GUO3, Weina MU1, 2, 4, Xiangjie KONG1, 2
Affiliations
  • 1.College of Quality and Technical Supervision, Hebei University, Baoding 071002, Hebei, China
  • 2.National & Local Joint Engineering Research Center of Metrology Instrument and System, Baoding 071002, Hebei, China
  • 3.Department of General Surgery, the Fifth Medical Center of the General Hospital of the Chinese People's Liberation Army, Beijing 100071, China
  • 4.Department of Ultrasound Medicine, Baoding No. 1 Central Hospital, Baoding 071002, Hebei, China
Published: 2025-10-01 doi: 10.16156/j.1004-7220.2025.05.022
Outline
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Objective

To study the hemodynamic characteristics of autologous arteriovenous fistula (AVF) and provide a theoretical basis for reducing its stenosis rate.

Methods

Bidirectional fluid-structure interaction (FSI) simulations were conducted on a modified AVF model. Flow field and wall shear stress (WSS) distributions in the internal fistula at different periods and angles in a cardiac cycle were analyzed for retrograde flow (confluence) and anterograde flow (shunt) modes in models with varying anastomosis angles.

Results

Under confluence modes, the WSS<1 Pa area in the 60° anastomosis angle model was the smallest (7.027 mm2), while the 45°, 60°, and 90° models showed no significant differences in eddy current size and intensity. Under shunt modes, the 45° anastomosis angle model had the smallest WSS<1 Pa area (9.079 mm2), but the 60° model exhibited the lowest eddy current intensity and distribution area. In addition, the difference in the WSS<1 Pa area between the 60° and 45° models was only 2.661 mm2.

Conclusions

Under both confluence and shunt flow modes, establishing an AVF with 60° anastomosis angle is conducive to reducing the risk of vascular stenosis in arteriovenous fistula.

autologous arteriovenous fistula  /  hemodynamic  /  fluid-structure interaction simulation  /  wall shear stress
Fan WANG, Jinfeng GUO, Cheng ZHANG, Ruixin GUO, Weina MU, Xiangjie KONG. Hemodynamic Analysis of Autologous Arteriovenous Fistula Based on Fluid-Structure Interaction Simulation[J]. Journal of Medical Biomechanics, 2025 , 40 (5) : 1248 -1255 . DOI: 10.16156/j.1004-7220.2025.05.022
Year 2025 volume 40 Issue 5
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Article Info
doi: 10.16156/j.1004-7220.2025.05.022
  • Receive Date:2024-11-29
  • Online Date:2026-03-27
  • Published:2025-10-01
Article Data
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History
  • Received:2024-11-29
  • Revised:2025-01-15
Funding
Affiliations
    1.College of Quality and Technical Supervision, Hebei University, Baoding 071002, Hebei, China
    2.National & Local Joint Engineering Research Center of Metrology Instrument and System, Baoding 071002, Hebei, China
    3.Department of General Surgery, the Fifth Medical Center of the General Hospital of the Chinese People's Liberation Army, Beijing 100071, China
    4.Department of Ultrasound Medicine, Baoding No. 1 Central Hospital, Baoding 071002, Hebei, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
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占总种数比例
Percentage of
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种数
Number of
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占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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