Hemodynamic Characteristics in Aorta-Pulmonary Artery System

9th Thai Society of Mechanical Engineers, International Conference on Mechanical Engineering

Ichihashi, D.^1 ; Iinuma, M.^1 ; Yamamoto, T.^2 ; Kori, M.I.^3 ; Osman, K.B.^3

Advanced Course, National Institute of Technology Gifu College, 2236-2 Kamimakuwa, Motosu

501-0495, Japan^1

Dept. Mechanical Engineering, National Institute of Technology, Gifu College, 2236-2 Kamimakuwa, Motosu

501-0495, Japan^2

IJN-UTM Cardiovascular Eng. Centre, UTM, Johor Bahru

81310, Malaysia^3

关键词: Computational fluid dynamics analysis;    Hypoplastic left heart syndrome;    Norwood procedures;    Particle imaging velocimetry;    Patent ductus arteriosus;    Stagnation regions;    Thrombus formation;    Wall shear stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/501/1/012037/pdf
DOI  :  10.1088/1757-899X/501/1/012037

来源: IOP

【 摘 要 】

The child patients of hypoplastic left heart syndrome undergoes major operations such as the Norwood procedure, the Bidirectional Glenn procedure and the Fontan procedure. Patent Ductus Arteriosus (PDA) stenting, which is instead of these procedures, is recently performed to prevent closure of ductus arteriosus and to alleviate the burden for the patient. This study clarified that hemodynamics in aorta-pulmonary artery system and mechanism of thrombus formation using Computational Fluid Dynamics (CFD) analysis and Particle Imaging Velocimetry (PIV) measurement. As a result of CFD analysis, low wall shear stress was observed at neighborhood of PDA stent. From results of CFD analysis and PIV measurement, the main blood flow was formed toward from aorta to pulmonary artery and there is no blood stagnation region in PDA.