Visualization and analysis of flow patterns of human carotid bifurcation by computational fluid dynamics
- VernacularTitle:应用计算流体力学方法显示颈动脉分叉血流模式的研究
- Author:
Yun-Jing XUE
;
Pei-Yi GAO
;
Yan LIN
;
- Publication Type:Journal Article
- Keywords:
Computers,analog;
Carotid arteries;
Hemodynamics;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
2001;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate flow patterns at carotid bifurcation in vivo by combining computational fluid dynamics(CFD)and MR angiography imaging.Methods Seven subjects underwent contrast-enhanced MR angiography of carotid artery in Siemens 3.0 T MR.Flow patterns of the carotid artery bifurcation were calculated and visualized by combining MR vascular imaging post-processing and CFD. Results The flow patterns of the carotid bifurcations in 7 subjects were varied with different phases of a cardiac cycle.The turbulent flow and back flow occurred at bifurcation and proximal of internal carotid artery (ICA)and external carotid artery(ECA),their occurrence and conformation were varied with different phase of a cardiac cycle.The turbulent flow and back flow faded out quickly when the blood flow to the distal of ICA and ECA.Conclusion CFD combined with MR angiography can be utilized to visualize the cyclical change of flow patterns of carotid bifurcation with different phases of a cardiac cycle.
