Hemodynamic Analysis on Anomalous Origin of the Right Coronary Artery from the Left Coronary Artery Sinus
10.16156/j.1004-7220.2020.03.04
- VernacularTitle:右冠状动脉起源于左冠状窦的血流动力学分析
- Author:
Mengyang CONG
1
;
Huihui ZHAO
2
;
Xingming XU
1
;
Shun DAI
3
;
Chuanzhi CHEN
4
;
Jianfeng QIU
2
;
Xiuqing QIAN
5
;
Shengxue QIN
1
Author Information
1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology
2. College of Radiology, Shandong First Medical University Shandong Academy of Medical Sciences
3. Department of Radiology, Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine
4. Department of Radiology, Shanghai East Hospital
5. Department of Biomedical Engineering, Capital Medical University
- Publication Type:Journal Article
- Keywords:
right coronary artery （RCA）;
left coronary artery sinus;
hemodynamics;
flow velocity;
pressure;
wall shear stress (WSS)
- From:
Journal of Medical Biomechanics
2020;35(3):E284-E288
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the hemodynamic parameters of anomalous origin of the right coronary artery from the left coronary artery sinus (AORL) based on computational fluid dynamics (CFD), so as to make an evaluation of the disease. Methods A normal right coronary artery (RCA) case and an AORL case were selected. Two models were reconstructed in Mimics software and imported into ANSYS CFX software for hemodynamics simulation. The hemodynamics of normal RCA model and AORL model were compared. Results AORL model had a smaller volume flow (9.35 cm3/s), which might lead to insufficient blood supply downstream of the RCA; the pressure at the acute corner of AORL model (13.78 kPa) was lower than normal RCA model (14.9 kPa); the wall shear stress (WSS) of AORL model (12.83 Pa) was larger than that of normal RCA model (9.74 Pa); the total deformation of AORL model was relatively large. Conclusions The entrance velocity and pressure of AORL were lower than those of normal RCA, which might lead to ischemic symptoms. The research findings are of theoretical significance for the effective evaluation of ischemia and other diseases in clinic.
